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The Mount command (MOUNT) is used to make a disk or magnetic tape available for processing.
MOUNT device-name[:][,...] [volume-label[,...]] [logical-name[:]]
device-name[:][,...]
Specifies the physical device name or logical name of the device on which the volume is to be mounted. On a system where volumes are not connected to HSCs (hierarchical storage controllers), use the following format:ddcu:The dd describes the device type of the physical devices used. For example, an RA60 disk drive is device type DJ, and an RA80 or RA81 disk drive is device type DU. The c identifies the controller, and the u identifies the unit number of the device.
On a system with HSCs, use one of the following formats:
node$ddcu:
allocation-class$ddcu:If your devices are dual ported to HSCs, use the allocation-class format. For example, $125$DUA23 represents an RA80 or RA81 disk with unit number 23. The disk's allocation class is $125$. The c part of the format is always A for HSC disks. TROLL$DJA12 represents an RA60 disk with unit number 12. The device is connected to an HSC named TROLL. See the HP OpenVMS Cluster Systems for more information about naming conventions.
Device names can be generic so that if no controller or unit number is specified, the system attempts to mount the first available device that satisfies those specified components of the device names. If no volume is physically mounted on the specified device, MOUNT displays a message requesting that you place the volume in the device; after you place the volume in the named drive, MOUNT then completes the operation.
If you specify more than one device name for a disk or magnetic tape volume set, separate the device names with either commas or plus signs. For a magnetic tape volume set, you can specify more volume labels than device names or more device names than volumes.
volume-label[,...]
Specifies the label on the volume.The number of characters allowed in a label depends on the type of device, as follows:
Device Type Number of Characters
in LabelMagnetic tape 0-6 Files-11 disk 1-12 ISO 9660 disk 1-32 OpenVMS requires disk volume labels to be unique in the first 12 characters within a given domain. For example, disks mounted by different members of the same group using the /GROUP qualifier must be unique. However, disks mounted in different domains, such as one mounted using the /GROUP qualifier and one mounted privately, can use the same volume label.
If you mount an ISO 9660 volume using the /SYSTEM or /CLUSTER qualifier, and the volume label is not unique within the first 12 characters, you must supply an alternate volume label using the qualifier /OVERRIDE=IDENTIFICATION. If you choose this option, then Mount verification is disabled for the device.
In addition, if a volume is part of a volume set and the first 12 characters of the volume-set name are the same as the first 12 characters of the volume label, a lock manager deadlock will occur. To avoid this problem, you must override either the volume label (by using the /OVERRIDE qualifier) or the volume-set name (by using the /BIND qualifier).
If you specify more than one volume label, separate the labels with either commas or plus signs. The volumes must be in the same volume set and the labels must be specified in ascending order according to relative volume number.
When you mount a magnetic tape volume set, the number of volume labels need not equal the number of device names specified. When a magnetic tape reaches the end-of-tape (EOT) mark, the system requests the operator to mount the next volume on one of the devices. The user is not informed of this request; only the operator is informed.
When you mount a disk volume set, each volume label specified in the list must correspond to a device name in the same position in the device name list.
The volume-label parameter is not required when you mount a volume with the /FOREIGN or /NOLABEL qualifier or when you specify /OVERRIDE=IDENTIFICATION. To specify a logical name when you enter either of these qualifiers, type any alphanumeric characters in the volume-label parameter position.
logical-name[:]
Defines a 1- to 255-alphanumeric character string logical name to be associated with the volume.If you do not specify a logical name, the MOUNT command assigns the default logical name DISK$volume-label to individual disk drives; it assigns the default logical name DISK$volume-set-name to the device on which the root volume of a disk volume set is mounted. Note that if you specify a logical name in the mount request that is different from DISK$volume-label or DISK$volume-set-name, then two logical names are associated with the device.
If you do not specify a logical name for a magnetic tape drive, the MOUNT command assigns only one logical name, TAPE$volume-label, to the first magnetic tape device in the list. No default logical volume-set name is assigned in this case.
The MOUNT command places the name in the process logical name table, unless you specify /GROUP or /SYSTEM. In the latter cases, it places the logical names in the group or system logical name table.
If you specify the /CLUSTER qualifier, the logical name is established on each node in the cluster.
Note
Avoid assigning a logical name that matches the file name of an executable image in SYS$SYSTEM. Such an assignment prohibits you from invoking that image.Do not use the logical name assigned to a volume as a distributed file system (DFS) access point. If you attempt to add a DFS access point using the same name as the logical name, DFS fails as in the following example:
$ SHOW LOG DISK$* (LNM$SYSTEM_TABLE) "DISK$TIVOLI_SYS" = "TIVOLI$DUA0:" $ RUN SYS$SYSTEM:DFS$CONTROL DFS> ADD ACCESS DISK$TIVOLI_SYS TIVOLI$DUA0:[000000] %DNS-W-NONSNAME, Unknown namespace name specifiedIf the logical name of a volume is in a process-private table, then the name is not deleted when the volume is dismounted.
The Mount command (MOUNT) is used to make a disk or magnetic tape available for processing. MOUNT allows you to ensure that the device has not been allocated to another user, that a volume is physically loaded on the device specified, and that the label on the volume matches the label specified. For magnetic tape volumes, MOUNT also checks the volume accessibility field of the VOL1 label.Normally, MOUNT allocates the device to the user who enters the command. However, mounting volumes with the /SHARE, /GROUP, or /SYSTEM qualifier deallocates the device, because the purpose of these qualifiers is to make the volume shareable.
Note
To mount a volume on a device, you must have read (R) or control (C) access to that device.Any subprocess in the process tree can mount or dismount a volume for the job. When a subprocess mounts a volume (for the job) as private, the master process of the job becomes the owner of this device. This provision is necessary because the subprocess may be deleted and the volume should remain privately mounted for this job. However, when a subprocess explicitly allocates a device and then mounts a private volume on this device, the subprocess retains device ownership. In this situation, only subprocesses with SHARE privilege have access to the device.
Upon successful completion of the operation, MOUNT notifies you with a message sent to SYS$OUTPUT. If the operation fails for any reason, MOUNT notifies you with an error message.
Certain file utilities such as MOUNT allocate virtual memory to hold copies of the index file and storage bitmaps. Beginning with larger bitmaps in OpenVMS Version 7.2, the virtual memory requirements of these utilities increase correspondingly. To use MOUNT on volumes with large bitmaps, you might need to increase your page file quota. On OpenVMS VAX systems, you might also need to increase the system parameter VIRTUALPAGECNT. The virtual memory size is shown as VAX pages (or Alpha 512-byte pagelets) per block of bitmap. Note that the size of the index file bitmap in blocks is the maximum number of files divided by 4096. The virtual memory requirements for MOUNT is equal to the sum of the sizes of all index file bitmaps and storage bitmaps on the volume set. This requirement applies to MOUNT only if you rebuild a volume.
If you have a disk volume that you do not want the file system to cache, such as a database volume, use the /NOCACHE qualifier. This disables caching for the volume:
- It stops the following metadata caches from caching any metadata for the volume on the local node:
The Extent Cache
The File Identifier Cache
The Quota Cache- It stops the local Extended File Cache or Virtual I/O Cache from caching any files in the volume.
The Mount command (MOUNT) makes a disk or magnetic tape volume available for processing.
To invoke MOUNT, enter the DCL command MOUNT, followed by the device name, volume label, and logical name. You must include a device name and a volume label (unless you specify /OVERRIDE=IDENTIFICATION or use the /FOREIGN or /NOLABEL qualifier); the logical name is optional.
MOUNT returns you to the DCL level after it either successfully completes the operation or fails, generating an error message. If you press Ctrl/Y or Ctrl/C, MOUNT aborts the operation and returns you to the DCL prompt.
You can direct output from MOUNT operations with the /COMMENT and /MESSAGE qualifiers. When the mount operation requires operator assistance, use /COMMENT to specify additional information to be included with the operator request. The /COMMENT text string is sent to the operator log file and to SYS$OUTPUT. The string must contain no more than 78 characters.
Use the /MESSAGE qualifier (this is the default) to send mount request messages to your current SYS$OUTPUT device. If you specify /NOMESSAGE during an operator-assisted mount, messages are not sent to SYS$OUTPUT; the operator sees them, however, if an operator terminal is enabled to receive messages.
Many MOUNT qualifiers require special privileges. Some qualifiers require different privileges according to which qualifier keyword you specify. See the individual qualifiers for details. The following table lists MOUNT qualifiers that require special privileges:
Qualifier Keywords Required Privilege /ACCESSED OPER /CACHE= [NO]EXTENT[=n] OPER [NO]FILE_ID[=n] OPER [NO]QUOTA[=n] OPER /FOREIGN VOLPRO 1 /GROUP GRPNAM /MULTI_VOLUME VOLPRO /OVERRIDE= ACCESSIBILITY VOLPRO 1 EXPIRATION VOLPRO 1 LOCK VOLPRO 1 SHADOW VOLPRO 1 /OWNER_UIC= uic VOLPRO 1 /PROCESSOR= UNIQUE OPER SAME:device OPER file-spec OPER and CMKRNL /PROTECTION= code VOLPRO 1 /QUOTA VOLPRO 1 /SYSTEM SYSNAM /WINDOWS= n OPER
/ACCESSED=n
Specifies, for ODS-1 disk volumes, the approximate number of directories that will be in use concurrently on the volume. (The /ACCESSED qualifier is meaningless for ODS-2 volumes.)Specify a value from 0 to 255 to override the default that was specified when the volume was initialized.
You need the user privilege OPER to use /ACCESSED.
The following command requests the volume labeled WORK to be mounted on DKA1, specifying 150 as the number of active directories on the volume:
$ MOUNT/ACCESSED=150 DKA1 WORK/ASSIST (default)
/NOASSIST
Directs the mount operation to allow operator or user intervention if the mount request fails.When you specify the /ASSIST qualifier, MOUNT notifies the user and certain classes of operator if a failure occurs during the mount operation. If a failure occurs, the operator or user can either abort the operation or correct the error condition to allow the operation to continue.
The operator-assist messages are sent to all operator terminals that are enabled to receive messages; magnetic tape mount requests go to TAPE and DEVICE operators, and disk mount requests go to DISK and DEVICE operators. Thus, if you need operator assistance while mounting a disk device, a message is sent to DISK operators. See the description of the REPLY command for more information about enabling and disabling operator terminals.
Any operator reply to a mount request is written to SYS$OUTPUT to be displayed on the user's terminal or written in a batch job log.
If no operator terminal is enabled to receive and respond to a mount assist request, a message is displayed informing the user of the situation. If a volume is placed in the requested drive, no additional operator response is necessary. If the mount request originates from a batch job and no operator terminal is enabled to receive messages, the mount is aborted. See the OpenVMS System Messages: Companion Guide for Help Message Users for a description of the error messages and their suggested user actions.
The default is /ASSIST and can be overridden by /NOASSIST.
The following command mounts an HSG80 Fibre Channel disk volume labeled DOC and assigns the logical name WORK. The /NOASSIST qualifier signals MOUNT that no operator intervention is necessary.
$ MOUNT/NOASSIST $1$DGA0: DOC WORK %MOUNT-I-MOUNTED, DOC mounted on _$1$DGA0: (NODE)/AUTOMATIC (default)
/NOAUTOMATIC
Determines whether MOUNT enables or disables automatic volume switching and labeling for magnetic tape or ISO 9660 CD-ROM.If you have multiple magnetic tape drives allocated to a volume set, the magnetic tape ancillary control process (MTACP) performs the volume switch by sequentially selecting the next available drive allocated to the volume set. The MTACP expects the next reel of the volume set to be loaded on that drive.
If the MTACP is writing to the volume set, it creates a label and initializes the magnetic tape with that label and the protections established for the first magnetic tape of the volume set. If it is reading from the volume set, the MTACP generates the label and attempts to mount the next magnetic tape with that label. If the drive has the wrong magnetic tape (or no magnetic tape) loaded, the MTACP sends a message to the operator's console to prompt for the correct magnetic tape.
The label generated by the MTACP fills the 6-character volume identifier field. The first four characters of the field contain the first four characters of the label specified in the MOUNT command, padded with underscores when the label is not at least four characters. The fifth and sixth characters contain the relative volume number for this reel in the volume set.
If you specify /NOAUTOMATIC, the MTACP requires operator intervention to switch to the next drive during end-of-tape processing, and requires that the operator specify a label for each new reel added to a volume set.
Under ISO 9660, not all volume-set members must be mounted to perform I/O operations against that volume set. By default, if I/O operations attempt to access an unmounted volume-set member, an operator message is sent to all DISK CLASS operators for system-mounted volume sets, or the owning process for privately mounted volume sets. The message specifies the volume-set member to mount to complete the I/O operation requested. If /NOAUTOMATIC is specified, then an I/O operation to a nonmounted volume set member completes with an error message SS$_DEVNOTMOUNT.
The following command instructs MOUNT not to generate its own label for the second volume, but to use the ones supplied with the MOUNT command instead. If the second volume is not already labeled, then the operator must use REPLY/INIT and supply the second label.
$ MOUNT/NOAUTOMATIC MTA0: ABCD,EFGH/BIND=volume-set-name
Creates a volume set of one or more disk volumes or adds one or more volumes to an existing volume set.The parameter, volume-set-name, specifies a 1- to 12-alphanumeric-character name identifying the volume set.
An ISO 9660 volume-set name can be from 1 to 128 characters in length.
OpenVMS requires volume-set names to be unique in the first 12 characters. In addition, if the first 12 characters of volume-set name are the same as the first 12 characters of any volume label, a lock manager deadlock will occur. To avoid this problem, you must override either the volume label (by using the /OVERRIDE qualifier) or the volume-set name (by using the /BIND qualifier).
You must specify the /BIND qualifier when you first create the volume set or each time you add a volume to the set. To dismount an individual volume of the volume set, you must use the DISMOUNT qualifier /UNIT; otherwise, dismounting an individual volume dismounts the entire volume set.
When you create a volume set, the volumes specified in the volume-label list are assigned relative volume numbers based on their positions in the label list. The first volume specified becomes the root volume of the set.
When you add a volume or volumes to a volume set, the first volume label specified must be that of the root volume, or the root volume must already be on line.
Note that if you attempt to create a volume set from two or more volumes that already contain files and data, the file system does not issue an error message when you issue the MOUNT/BIND command. However, the volumes are unusable as a volume set because the directory structures are not properly bound.
If you mount an ISO 9660 volume using the /SYSTEM or /CLUSTER qualifier, and the volume label is not unique within the first 12 characters, you must supply an alternate 12-character volume label using the qualifier /BIND=volume-set-name. If you choose this option, then Mount verification is disabled for the device.
Note
Once a volume is bound into a volume set, it cannot easily be unbound. To unbind a bound volume set (BVS):
- Do an image backup of the BVS.
- Initialize all volumes of the BVS.
- Do an image restore to a single volume with the /NOINITIALIZE qualifier, or do a nonimage restore to a single volume.
The following command creates a volume set named LIBRARY. This volume set consists of the volumes labeled BOOK1, BOOK2, and BOOK3, which are mounted physically on devices DMA0, DMA1, and DMA2, respectively.
$ MOUNT/BIND=LIBRARY DMA0:,DMA1:,DMA2: BOOK1,BOOK2,BOOK3The following command creates a volume set with the logical name TEST3. The volume set TEST3 is not shadowed, however each element of the volume set (TEST3011 and TEST3012) is a shadowset, providing redundancy for the volume set as a whole.
$ MOUNT/BIND=TEST3 DSA3011/SHADOW=($1$DUA402:,$1$DUA403:), DSA3012/SHADOW=($1$DUA404:,$1$DUA405:) TEST3011,TEST3012 TEST3/BLOCKSIZE=n
Specifies the default block size for magnetic tape volumes.The parameter, n, specifies the default block size value for magnetic tape volumes. Valid values are in the range 20 to 65,532 for OpenVMS RMS operations, and 18 to 65,534 for non OpenVMS RMS operations. By default, records are written to magnetic tape volumes in 2048-byte blocks. For foreign or unlabeled magnetic tapes, the default is 512 bytes.
You must specify /BLOCKSIZE in two situations:
- When mounting magnetic tapes that do not have HDR2 labels. For these magnetic tapes, you must specify the block size. For example, you must specify /BLOCKSIZE=512 to mount an RT-11 magnetic tape.
- When mounting magnetic tapes that contain blocks whose sizes exceed the default block size (2048 bytes). In this case, specify the size of the largest block for the block size.
In the following example, the /BLOCKSIZE qualifier specifies a block size of 1000 bytes; the default for a magnetic tape mounted with the /FOREIGN qualifier is 512.
$ MOUNT/FOREIGN/BLOCKSIZE=1000 MTA1:/CACHE=(keyword[,...])
/NOCACHE
For disks, controls whether caching limits established at system generation time are disabled or overridden. With the TAPE_DATA option, enables write caching for the tape controller specified (if the tape controller supports write caching).The following table lists the keywords for this qualifier:
Keyword Description EXTENT[=n] and NOEXTENT Enable or disable extent caching. To enable extent caching, you must have the operator user privilege (OPER) and you must specify n, the number of entries in the extent cache. Note that NOEXTENT is equivalent to EXTENT=0; both disable extent caching. FILE_ID[=n] and NOFILE_ID Enable or disable file identification caching. To enable file identification caching, you must have the operator user privilege (OPER) and you must specify n, the number of entries, as a value greater than 1. Note that NOFILE_ID is equivalent to FILE_ID=1; both disable file identification caching. LIMIT=n Specifies the maximum amount of free space in the extent cache in one-thousandths of the currently available free space on the disk. QUOTA[=n] and NOQUOTA Enable or disable quota caching. To enable quota caching, you must have the operator user privilege (OPER) and you must specify n, the number of entries in the quota cache. Normally n is set to the maximum number of active users expected for a disk with quotas enabled. Both NOQUOTA and QUOTA=0 disable quota file caching. TAPE_DATA Enables write caching for a magnetic tape device if the tape controller supports write caching. The /CACHE qualifier is the default for mounting tape devices. You must specify TAPE_DATA to enable write caching. If the tape controller does not support write caching, the keyword is ignored. The write buffer stays enabled even after you dismount the magnetic tape. To disable the write buffer, mount a tape with the /NOCACHE qualifier.
If a tape supports compaction, then the default is compaction, and caching is enabled. For tape storage devices that support compaction, the following command is valid:
$ MOUNT TAPE_DATA/FOREIGN/MEDIA=NOCOMPACTION/NOCACHE
WRITETHROUGH Disables the deferred write feature for file headers. By default, this feature is enabled, which improves the performance of applications, such as PATHWORKS, that use it. The deferred write feature is not available on Files-11 ODS-1 volumes. Used with the disk options, the /CACHE qualifier overrides one or more of the present disk caching limits established at system generation time. Used with the TAPE_DATA option, the /CACHE qualifier enables write caching for the tape controller specified.
If you do not specify the /CACHE qualifier and it is not implied by the use of the qualifier /MEDIA_FORMAT=COMPACTION, caching is enabled by default.
If you specify more than one option, separate them by commas and enclose the list in parentheses. The options [NO]EXTENT, [NO]FILE_ID, LIMIT, and [NO]QUOTA apply only to a disk device. The option TAPE_DATA applies only to a tape device.
The /NOCACHE qualifier is effective only if compaction is not enabled. If compaction is enabled (with the /MEDIA_FORMAT=COMPACTION), caching is enabled by default.
If you specify /NOCACHE for a disk device, all caching is disabled for this volume. Note that the /NOCACHE qualifier is equivalent to /CACHE=(NOEXTENT,NOFILE_ID,NOQUOTA,WRITETHROUGH).
If you specify /NOCACHE for a magnetic tape device, the tape controller's write cache is disabled for this volume.
The following command mounts an HSG80 Fibre Channel disk device labeled FILES and assigns the logical name WORK. The /CACHE qualifier enables an extent cache of 60 entries, a file identification cache of 60 entries, and a quota cache of 20; it disables writeback caching of file headers.
$ MOUNT/CACHE=(EXTENT=60,FILE_ID=60,QUOTA=20,WRITETHROUGH) - _$ $1$DGA0: FILES WORK %MOUNT-I-MOUNTED, FILES mounted on _$1$DGA0: (NODE)The following command mounts the volume TAPE on device MUA0 and instructs MOUNT to enable the tape controller's write cache for MUA0:
$ MOUNT/CACHE=TAPE_DATA MUA0: TAPE %MOUNT-I-MOUNTED, TAPE mounted on _NODE$MUA0:/CLUSTER
Specifies that after the volume is successfully mounted on the local node, or if it is already mounted /SYSTEM on the local node, it is to be mounted on every other node in the existing OpenVMS Cluster (that is, the volume is mounted clusterwide).Only system or group volumes can be mounted clusterwide. If you specify the /CLUSTER qualifier with neither the /SYSTEM nor the /GROUP qualifier, the default is /SYSTEM. Note that you must use a cluster device-naming convention. Use either node$device-name or allocation-class$device-name as required by your configuration.
You need the user privileges GRPNAM and SYSNAM, respectively, to mount group and system volumes clusterwide.
If the system is not a member of an OpenVMS Cluster, the /CLUSTER qualifier has no effect.
The following MOUNT/CLUSTER command mounts the volume SNOWWHITE on DOPEY$DMA1, then proceeds to mount the volume clusterwide. The SHOW DEVICE/FULL command displays information about the volume, including the other nodes on which it is mounted.
$ MOUNT/CLUSTER DOPEY$DMA1: SNOWWHITE DWARFDISK %MOUNT-I-MOUNTED, SNOWWHITE mounted on _DOPEY$DMA1: $ SHOW DEVICE/FULL DWARFDISK: Disk $2$DMA1: (DOPEY), device type RK07, is online, mounted, file-oriented device, shareable, served to cluster via MSCP Server, error logging is enabled. Error count 0 Operations completed 159 Owner process "" Owner UIC [928,49] Owner process ID 00000000 Dev Prot S:RWED,O:RWED,G:RW,W:R Reference count 1 Default buffer size 512 Total blocks 53790 Sectors per track 22 Total cylinders 815 Tracks per cylinder 3 Allocation class 2 Volume label "SNOWWHITE" Relative volume number 0 Cluster size 3 Transaction count 1 Free blocks 51720 Maximum files allowed 6723 Extend quantity 5 Mount count 7 Mount status System Cache name "_$255$DWARF1:XQPCACHE" Extent cache size 64 Maximum blocks in extent cache 5172 File ID cache siz 64 Blocks currently in extent cache 0 Quota cache size 25 Maximum buffers in FCP cache 349 Volume status: ODS-2, subject to mount verification, file high-water marking, write-through caching enabled. Volume is also mounted on DOC, HAPPY, GRUMPY, SLEEPY, SNEEZY, BASHFUL./COMMENT=string
Specifies additional information to be included with the operator request when the mount operation requires operator assistance.The parameter, string, specifies a text string that is output to the operator log file and the current SYS$OUTPUT device. The string must contain no more than 78 characters.
The following command requests the operator to mount the disk volume TESTSYS on the device DYA1. Notice that the /COMMENT qualifier is used to inform the operator of the location of the volume. After the operator places the volume in DYA1, MOUNT retries the operation. After the operation completes, the operator request is canceled.
$ MOUNT DYA1: TESTSYS/COMMENT="Volume in cabinet 6." %MOUNT-I-OPRQST, Please mount volume TESTSYS in device _DYA1: Volume in cabinet 6. %MOUNT-I-MOUNTED TESTSYS mounted on _DYA1: %MOUNT-I-OPRQSTDON, operator request canceled - mount completed successfullyThe following command is the same as in the previous example. However, in this example, because the requested device is in use, the operator aborts the mount.
$ MOUNT DYA1: TESTSYS/COMMENT="Volume in cabinet 6." %MOUNT-I-OPRQST, Please mount volume TESTSYS in device _DYA1: Volume in cabinet 6. %MOUNT-I-OPREPLY, This is a '/pending' response from the operator. 31-DEC-1990 10:27:38.15, request 2 pending by operator TTB6 %MOUNT-I-OPREPLY, This is a '/abort' response from the operator. 31-DEC-1990 10:29:59.34, request 2 aborted by operator TTB6 %MOUNT-F-OPRABORT, mount aborted by operatorThe following command requests the operator to mount the volume TESTSYS on the device DYA0. In this example, the operator notices that the requested device is in use and redirects the mount to device DYA1.
$ MOUNT DYA0: TESTSYS/COMMENT="Volume in cabinet 6, once again with feeling." %MOUNT-I-OPRQST, Please mount volume TESTSYS in device _DYA0: Volume in cabinet 6, once again with feeling. %MOUNT-I-OPREPLY, Substitute DYA1: 31-DEC-1990 10:43:42.30, request 3 completed by operator TTB6 %MOUNT-I-MOUNTED, TESTSYS mounted on _DYA1:/CONFIRM virtual-unit-name[:] /SHADOW=(physical-dev-name[:][,...])
/NOCONFIRM virtual-unit-name[:] /SHADOW=(physical-dev-name[:][,...])
Causes MOUNT to pause and request confirmation before performing a copy operation on the specified disk device. This qualifier is applicable only if you have the volume shadowing option. See the HP Volume Shadowing for OpenVMS for additional information.This qualifier controls whether MOUNT issues a request to confirm a full copy operation when mounting a shadow set. The /SHADOW qualifier must be used with the /CONFIRM qualifier. Use /CONFIRM to display the volume label and volume owner for any specified physical device that is a target for a copy operation. MOUNT stops before any copy operations occur and issues the following prompt:
Allow FULL shadow copy on the above member(s)? [N]:If you respond Y or YES, the mount operation continues automatically with copy operations allowed. If you respond N, NO, <RETURN>, or <Ctrl/Z>, the command quits without mounting any of the specified volumes (including volumes that did not require copy operations). If you type a response other than those listed above, MOUNT reissues the prompt.
The /CONFIRM qualifier is similar to /NOCOPY. Use /CONFIRM to mount shadow sets interactively; use /NOCOPY in the site-specific startup command procedure SYS$MANAGER:SYSTARTUP_VMS.COM.
The following example shows how to use the /CONFIRM qualifier to check the status of potential shadow set members before any data is erased. The command instructs MOUNT to build a shadow set with the specified devices, and prompts for permission to perform a copy operation. The response of YES instructs MOUNT to mount the shadow set.
$MOUNT/CONFIRM DSA0:/SHADOW=($200$DKA200:,$200$DKA300:,$200$DKA400:) X5OZCOPY
%MOUNT-F-SHDWCOPYREQ, shadow copy required Virtual Unit - DSA0 Volume Label - X5OZCOPY Member Volume Label Owner UIC $200$DKA200: (VIPER1) X5OZCOPY [SYSTEM] $200$DKA400: (VIPER1) X5OZCOPY [SYSTEM] Allow FULL shadow copy on the above member(s)? [N]:) Y
%MOUNT-I-MOUNTED, X5OZCOPY mounted on _DSA0: %MOUNT-I-SHDWMEMSUCC, _$200$DKA300: (VIPER1) is now a valid member of the shadow set %MOUNT-I-SHDWMEMCOPY, _$200$DKA200: (VIPER1) added to the shadow set with a copy operation %MOUNT-I-SHDWMEMCOPY, _$200$DKA400: (VIPER1) added to the shadow set with a copy operation/COPY virtual-unit-name[:] /SHADOW=(physical-dev-name[:][,...]) (default)
/NOCOPY virtual-unit-name[:] /SHADOW=(physical-dev-name[:][,...])
Enables or disables copy operations on physical devices specified when you mount a shadow set. This qualifier is applicable only if you have the volume shadowing option. See the HP Volume Shadowing for OpenVMS for additional information.The /COPY qualifier instructs MOUNT to perform copy operations on shadow set members. You can mount shadow sets with /NOCOPY to test if proposed shadow set members are targets of copy operations. If any of the specified volumes is a target of a copy operation, the command quits without mounting any of the specified volumes (including those that did not require a copy operation).
The /NOCOPY qualifier is similar to /CONFIRM. Use /NOCOPY to mount shadow sets in the site-specific startup command procedure SYS$MANAGER:SYSTARTUP_VMS.COM; use /CONFIRM for interactive mounting.
The following example shows how to use the /NOCOPY qualifier to check the status of potential shadow set members before any data is erased. The command instructs MOUNT to build a shadow set with the specified devices only if a copy operation is not required. Because the device DUA7 required a copy operation to become a member of the shadow set, the mount failed. You could reissue the command specifying /COPY to instruct MOUNT to build the shadow set providing the necessary copy operation.
$ MOUNT/NOCOPY DSA2: /SHADOW=($1$DUA4:,$1$DUA6:,$1$DUA7:) - _$ SHADOWVOL DISK$SHADOWVOL %MOUNT-F-SHDWCOPYREQ, shadow copy required %MOUNT-I-SHDWMEMFAIL, DUA7: failed as a member of the shadow set %MOUNT-F-SHDWCOPYREQ, shadow copy required/DATA_CHECK[=(keyword[,...])]
Overrides the read-check or write-check option (or both) specified for a volume when it was initialized.The keyword, READ, performs checks following all read operations, and the keyword, WRITE, performs checks following all write operations.
You can specify either or both of the keywords. If you specify more than one keyword, separate them by commas and enclose the list in parentheses.
If you specify the /DATA_CHECK qualifier without specifying a keyword, MOUNT defaults to /DATA_CHECK=WRITE.
The following command mounts a volume labeled SAM on CLEMENS$DKA2 and assigns the logical name BOOK. The /DATA_CHECK=READ qualifier overrides a previous INITIALIZE/DATA_CHECK=WRITE specification, so that subsequent read operations on BOOK are subject to data-checking operations.
$ MOUNT/DATA_CHECK=READ CLEMENS$DKA2: SAM BOOK/DENSITY=keyword
Specifies the density at which a magnetic tape is to be written. This qualifier is valid only if you mount a tape specifying the /FOREIGN qualifier. If you change the density on a tape, the first operation on the tape must be a write operation.The densities supported for tapes are shown in the following table:
Table DCLI-13 Keywords for Tapes Keyword Meaning DEFAULT Default density 800 NRZI 800 bits per inch (BPI) 1600 PE 1600 BPI 6250 GRC 6250 BPI 3480 IBM 3480 HPC 39872 BPI 3490E IBM 3480 compressed 833 DLT TK50: 833 BPI TK50 DLT TK50: 833 BPI TK70 DLT TK70: 1250 BPI 6250 RV80 6250 BPI EQUIVALENT NOTE: Only the symbols listed above are understood by TMSCP/TUDRIVER code prior to OpenVMS Version 7.2. The remaining symbols in this table are supported only on OpenVMS Alpha and I64 systems. TK85 DLT Tx85: 10625 BPI---Cmpt III - Alpha/I64 only TK86 DLT Tx86: 10626 BPI---Cmpt III - Alpha/I64 only TK87 DLT Tx87: 62500 BPI---Cmpt III - Alpha/I64 only TK88 DLT Tx88: (Quantum 4000)---Cmpt IV - Alpha/I64 only TK89 DLT Tx89: (Quantum 7000)---Cmpt IV - Alpha/I64 only QIC All QIC drives are drive-settable only - Alpha/I64 only TK85 DLT Tx85: 10625 BPI---Cmpt III - Alpha/I64 only TK86 DLT Tx86: 10626 BPI---Cmpt III - Alpha/I64 only TK87 DLT Tx87: 62500 BPI---Cmpt III - Alpha/I64 only TK88 DLT Tx88: (Quantum 4000)---Cmpt IV - Alpha/I64 only TK89 DLT Tx89: (Quantum 7000)---Cmpt IV - Alpha/I64 only QIC All QIC drives are drive-settable only - Alpha/I64 only 8200 Exa-Byte 8200 - Alpha/I64 only 8500 Exa-Byte 8500 - Alpha/I64 only DDS1 Digital Data Storage 1---2G - Alpha/I64 only DDS2 Digital Data Storage 2---4G - Alpha/I64 only DDS3 Digital Data Storage 3---8-10G - Alpha/I64 only DDS4 Digital Data Storage 4 - Alpha/I64 only AIT1 Sony Advanced Intelligent Tape 1 - Alpha/I64 only AIT2 Sony Advanced Intelligent Tape 2 - Alpha/I64 only AIT3 Sony Advanced Intelligent Tape 3 - Alpha/I64 only AIT4 Sony Advanced Intelligent Tape 4 - Alpha/I64 only DLT8000 DLT 8000 - Alpha/I64 only 8900 Exabyte 8900 - Alpha/I64 only SDLT SuperDLT1 - Alpha/I64 only SDLT320 SuperDLT320 - Alpha/I64 only Note that tape density keywords cannot be abbreviated.
When you initialize a tape with the INITIALIZE command and do not specify a density, the tape is initialized at the default density for the media and drive you are using (usually the highest density available).
The density of a tape can only be changed if the tape is at beginning-of-tape (BOT). To change the density of a tape that has previously been recorded, the first operation must be a write operation. If the first operation on the tape is a read operation, the magnetic tape is set to the density at which the first record on the tape was recorded, no matter what density is specified with the /DENSITY qualifier.
The following command mounts a tape on the MFA0: drive /FOREIGN and assigns it the logical name TAPE. The /DENSITY qualifier specifies that the tape is to be written at TK87.
$ MOUNT/FOREIGN/DENSITY=TK87 MFA0: TAPE/EXTENSION=n
Specifies the number of blocks by which disk files are to be extended on the volume unless otherwise specified by an individual command or program request.The parameter, n, specifies a value from 0 to 65,535 to override the value specified when the volume was initialized.
The following command mounts a volume labeled DOC on DKA0, assigns the logical name WORK, and specifies a default block extent of 64 for the files on WORK:
$ MOUNT/EXTENSION=64 DKA0: DOC WORK/FOREIGN
Indicates that the volume is not in the standard format used by the OpenVMS operating system.Use the /FOREIGN qualifier when a magnetic tape volume is not in the standard ANSI format, or when a disk volume is not in Files-11 format.
If you mount a volume with the /FOREIGN qualifier, the program you use to read the volume must be able to process the labels on the volume, if any. The OpenVMS operating system does not provide an ancillary control process (ACP) to process the volume.
You must mount DOS-1 and RT-11 volumes with the /FOREIGN qualifier and process them with the Exchange utility (EXCHANGE). See the OpenVMS Exchange Utility Manual (available on the Documentation CD-ROM).
The default protection applied to foreign volumes is RWLP (Read, Write, Logical I/O, Physical I/O) for the system and owner and no access for the group and world. If you also specify /GROUP, group members are also given RWLP access. If you specify /SYSTEM or /SHARE, the group and world are both given RWLP access. Note that the /GROUP, /SYSTEM, and /SHARE qualifiers do not alter the default protection.
If you mount a volume currently in Files-11 format with the /FOREIGN qualifier, you must have the user privilege VOLPRO, or your UIC must match the UIC on the volume.
The /FOREIGN qualifier is incompatible with the following qualifiers: /ACCESSED, /AUTOMATIC, /BIND, /CACHE, /[NO]CONFIRM, [NO]COPY, /EXTENSION, /HDR3, /INITIALIZE, /LABEL, /PROCESSOR, /QUOTA, /REBUILD, /SHADOW, /OVERRIDE=EXPIRATION, and /WINDOWS.
The following command mounts a foreign magnetic tape on drive MTA1:
$ MOUNT/FOREIGN MTA1: ABCD TAPEThe following command mounts an RK07 device as a foreign volume on DMA2 and assigns the default logical name as DISK$SAVEDISK. As a volume that is not file structured, SAVEDISK can be used for sequential-disk BACKUP save operations.
$ MOUNT/FOREIGN DMA2: SAVEDISK/GROUP
Makes the volume available to other users with the same group number in their UICs as the user entering the MOUNT command.The logical name for the volume is placed in the group logical name table. You must have the user privilege GRPNAM to use the /GROUP qualifier.
Note that if the volume is owned by a group other than yours, access may be denied because of the volume protection.
The /GROUP qualifier is not valid for ISO 9660 volume sets.
The /GROUP qualifier is incompatible with the /OVERRIDE=IDENTIFICATION, /SHARE, and /SYSTEM qualifiers.
The following command mounts and makes available on a group basis the volume set consisting of volumes labeled PAYVOL1, PAYVOL2, and PAYVOL3. The logical name PAY is assigned to the set; anyone wanting to access files on these volumes can refer to the set as PAY.
$ MOUNT/GROUP DB1:, DB2:, DB3: PAYVOL1,PAYVOL2,PAYVOL3 PAYThe following command adds the volume labeled PAYVOL4 to the existing volume set MASTER_PAY. The root volume for the volume set must be on line when you enter this command.
$ MOUNT/GROUP/BIND=MASTER_PAY DB4: PAYVOL4/HDR3 (default)
/NOHDR3
Controls whether ANSI standard header label 3 is written on a magnetic tape volume.By default, header label 3 is written. You can specify the /NOHDR3 qualifier to write magnetic tapes that are to be used on other systems that do not process HDR3 labels correctly.
In the following example, the INITIALIZE and MOUNT commands prepare an ANSI-formatted magnetic tape for processing. The /NOHDR3 qualifier specifies that no HDR3 labels are to be written, thus creating a magnetic tape that can be transported to systems that do not process implementation-dependent labels correctly.
$ INITIALIZE MTA0: ABCD $ MOUNT/NOHDR3 MTA0: ABCD/INCLUDE virtual-unit-name[:] /SHADOW=(physical-device-name[:][,...])
/NOINCLUDE virtual-unit-name[:] /SHADOW=(physical-device-name[:][,...]) (default)
Automatically reconstructs a former shadow set to the way it was before the shadow set was dissolved. This qualifier is applicable only if you have the volume shadowing option. See the HP Volume Shadowing for OpenVMS for additional information.The /INCLUDE qualifier automatically mounts and restores a shadow set to the way it was before a system failure. Supply the exact virtual-unit name that was used when the shadow set was originally mounted. Use the virtual-unit naming format DSAnnnn:.
You must also include the /SHADOW qualifier and specify at least one of the disk devices from the original shadow set. Use the standard device-naming format $allocation-class$ddcu[:]. Omit the parentheses if you name only one device.
The /INCLUDE qualifier is position independent; it can appear anywhere on the command line.
The default qualifier is /NOINCLUDE.
The following example shows how to create a shadow set wherein the software determines automatically the shadow set members that should be mounted. The /SHADOW qualifier ensures the correct copy operation for the two shadow set members. In this case, $1$DUA10 is the more current volume and becomes the source of the copy operation to $1$DUA11.
If the shadow set was properly dismounted and no write I/O requests remain outstanding, the shadow set devices are consistent and are added back without the need for a copy or merge operation. Otherwise, Volume Shadowing for OpenVMS automatically performs a copy or merge operation.
$ MOUNT/INCLUDE DSA0: /SHADOW=$1$DUA10: SHADOWVOL %MOUNT-I-MOUNTED, SHADOWVOL mounted on DSA0: %MOUNT-I-SHDWMEMSUCC, _$1$DUA10: (MEMBER1) is now a valid member of the shadow set %MOUNT-I-SHDWMEMCOPY, _$1$DUA11: (MEMBER2) added to the shadow set with a copy operation/INITIALIZE=CONTINUATION
Specifies that any volume added to the magnetic tape volume set is initialized before you can write to the volume.The /INITIALIZE=CONTINUATION qualifier instructs the MOUNT command to assign its own continuation label. In this case, the operator can enter the command REPLY/BLANK=n, and the system assigns a label derived from the original. It uses the label specified in the MOUNT command and adds the appropriate number (ABCD02, ABCD03, and so forth).
$ MOUNT/INITIALIZE=CONTINUATION MTA0: ABCD/LABEL (default)
/NOLABEL
Indicates that the volume is in the standard format used by the OpenVMS operating system; that is, a magnetic tape volume is in the standard ANSI format, or a disk volume is in Files-11 format.The default is /LABEL.
Note that /NOLABEL is equivalent to /FOREIGN; they both set the FOREIGN flag.
The following command mounts an ANSI-labeled magnetic tape on MFA1 and assigns the default logical name as TAPE$TAPE.
$ MOUNT/LABEL MFA1: TAPE/MEDIA_FORMAT=CDROM
Mounts a volume assuming the media to be ISO 9660 (or High Sierra) formatted.The /MEDIA_FORMAT=CDROM qualifier instructs the mount subsystem to attempt to mount a volume assuming the media to be ISO 9660 (or High Sierra) formatted.
Note
This qualifier specifies a CD-ROM mount (ISO 9660 or High Sierra). Specify this qualifier when a volume is known to be in either ISO 9660 or High Sierra CD-ROM format.The Mount command attempts to read a CD-ROM in Files-11 ODS-2 format by default. This qualifier prevents the Mount command from attempting a Files-11 ODS-2 mount sequence.
Because it is possible to record parts of a CD-ROM in Files-11 ODS-2 and other parts in ISO 9660 format, this qualifier can be used to specify a CD-ROM mount (ISO 9660 or High Sierra).
/MEDIA_FORMAT=[NO]COMPACTION
Enables and controls data compaction and data record blocking on tape drives that support data compaction.The /MEDIA_FORMAT qualifier allows you to mount a tape and enable data compaction and record blocking on a tape drive that supports data compaction. Data compaction and record blocking increase the amount of data that can be stored on a single tape.
Records can either be compacted and blocked, or they can be recorded in the same way that they would be recorded on a noncompacting tape drive. Note that for compacting tape drives, once data compaction or noncompaction has been selected for a given tape, that status applies to the entire tape.
The /MEDIA_FORMAT=[NO]COMPACTION qualifier is incompatible with the /DENSITY qualifier.
For Files-11 tapes, when you enable data compaction, caching is automatically enabled.
Note
The /MEDIA_FORMAT=[NO]COMPACTION qualifier is meaningful only for foreign mounts.The /MEDIA_FORMAT=[NO]COMPACTION qualifier has no effect on a Files-11 tape. The compaction state of a Files-11 tape is determined by the state established when the tape is initialized.
The following command performs a foreign mount of a tape with data compaction and record blocking enabled and assigns the logical name BOOKS to the tape:
$ MOUNT/FOREIGN/MEDIA_FORMAT=COMPACTION MUA0: BOOKSThe following MOUNT command attempts a Files-11 mount of a tape labeled BOOKS with data compaction and record blocking enabled. Because the tape was initialized with compaction disabled, the MOUNT qualifier /MEDIA_FORMAT=COMPACTION has no effect.
$ INIT/MEDIA_FORMAT=NOCOMPACTION MUA0: BOOKS $ MOUNT/MEDIA_FORMAT=COMPACTION MUA0: BOOKS/MESSAGE (default)
/NOMESSAGE
Causes mount request messages to be sent to your current SYS$OUTPUT device.If you specify /NOMESSAGE during an operator-assisted mount, messages are not output to SYS$OUTPUT; the operator sees them, however, provided an operator terminal is enabled.
In this example, an RL02 device labeled SLIP is mounted on drive DLA0 and is assigned the logical name DISC. The /NOMESSAGE qualifier disables the broadcast of mount request messages to the user terminal.
$ MOUNT/NOMESSAGE DLA0: SLIP DISC/MOUNT_VERIFICATION (default)
/NOMOUNT_VERIFICATION
Specifies that the device is a candidate for mount verification.The /MOUNT_VERIFICATION qualifier affects the following media:
- Files-11 Structure Level 2 or 5 disks (mount verification is not supported for foreign-mounted disks)
- ISO 9660 and High Sierra CD-ROMs
- Foreign and ANSI-labeled magnetic tape volumes
The following command mounts an HSG80 Fibre Channel disk device labeled FILES and assigns the logical name WORK. The /CACHE qualifier disables extent caching, file identification caching, quota caching, and writeback caching; the /NOMOUNT_VERIFICATION qualifier disables mount verification.
$ MOUNT/CACHE=(NOEXTENT,NOFILE_ID,NOQUOTA,WRITETHROUGH) - _$ /NOMOUNT_VERIFICATION $1$DGA0: FILES WORK %MOUNT-I-MOUNTED, FILES mounted on _$1$DGA0: (NODE)/MULTI_VOLUME
/NOMULTI_VOLUME (default)
For foreign or unlabeled magnetic tape volumes, determines whether you override MOUNT volume-access checks.Use /MULTI_VOLUME to override access checks on volumes that do not contain labels that MOUNT can interpret. If you have software produced before OpenVMS Version 5.0 that processes multiple-volume, foreign-mounted tape volumes without specifically mounting and dismounting each reel, you may now need to mount the first volume with the /MULTI_VOLUME qualifier.
Use this qualifier when a utility that supports multiple-volume, foreign-mounted magnetic tape sets needs to process subsequent volumes, and these volumes do not contain labels that the OpenVMS Mount command can interpret.
By default, all tape volumes are subject to the complete access checks of the OpenVMS Mount command (MOUNT). Some user-written and vendor-supplied utilities used prior to OpenVMS Version 5.0 may mount only the first tape in a foreign tape set. To make these utilities compatible with more recent versions of OpenVMS, alter them to perform explicit calls to the $MOUNT and $DISMOU system services for each reel in the set. As an alternative, you can now mount the magnetic tape sets to be used by these utilities with the /MULTI_VOLUME qualifier.
You must specify the /FOREIGN qualifier with the /MULTI_VOLUME qualifier and you must have the user privilege VOLPRO. The default is /NOMULTI_VOLUME.
Note
The OpenVMS Backup utility (BACKUP) explicitly calls the $MOUNT and $DISMOU system services on each reel of a foreign-mounted magnetic tape set. For additional information, see the section on multivolume save sets and BACKUP in the HP OpenVMS System Management Utilities Reference Manual: A--L.The following command mounts a tape volume set. MOUNT performs an access check on the first volume in the set and proceeds without checks to subsequent reels as they are needed for processing.
$ MOUNT/FOREIGN/MULTI_VOLUME MUA0:/OVERRIDE=(keyword[,...])
Inhibits one or more protection checks that the MOUNT command performs.You need the user privileges OPER and VOLPRO to specify /OVERRIDE=(ACCESSIBILITY, EXPIRATION) along with the /FOREIGN qualifier; otherwise, the magnetic tape is not read.
If you specify more than one keyword, separate them with commas and enclose the list in parentheses.
The following table lists the keywords for this qualifier:
Keyword Description ACCESSIBILITY For magnetic tapes only. If the installation allows, this keyword overrides any character in the Accessibility Field of the volume. The necessity of this keyword is defined by the installation. That is, each installation has the option of specifying a routine that the magnetic tape file system will use to process this field. By default, the OpenVMS operating system provides a routine that checks this field in the following manner:
- If the magnetic tape was created on a version of OpenVMS that conforms to Version 3 of ANSI, then you must use this keyword to override any character other than an ASCII space.
- If an OpenVMS protection is specified and the magnetic tape conforms to an ANSI standard that is higher than Version 3, then you must use this keyword to override any character other than an ASCII 1.
To use the ACCESSIBILITY keyword, you must have the user privilege VOLPRO or own the volume.
EXPIRATION For magnetic tapes only. Allows you to override the expiration dates of a volume and its files. Use this keyword when the expiration date in the first file header label of any file that you want to overwrite has not been reached. You must have the user privilege VOLPRO or your UIC must match the UIC written on the volume. IDENTIFICATION Overrides processing of the volume identifier in the volume label. Use this keyword to mount a volume for which you do not know the label, or (on VAX systems) for an ISO 9660 volume whose label is not unique in the first 12 characters. Only the volume identifier field is overridden. Volume protection, if any, is preserved. The volume must be mounted /NOSHARE (either explicitly or by default). The /OVERRIDE=IDENTIFICATION qualifier is incompatible with the /GROUP and /SYSTEM qualifiers.
LIMITED_SEARCH Allows the Mount command to search an entire device for a home block, if a home block is not found at the expected location. By default, the search for a home block is limited to avoid excessive search times if no valid home block is present. LOCK Directs MOUNT not to write-lock the volume as a consequence of certain errors encountered while mounting it. Use this keyword when you are mounting a damaged volume to be repaired using the ANALYZE/DISK_STRUCTURE command. You must have VOLPRO privilege or own the volume to use the LOCK keyword. NO_FORCED_ERROR Directs the Mount command to proceed with shadowing, even though the device or controller does not support forced error handling. Using unsupported SCSI disks can cause members to be removed from a shadow set if certain error conditions arise that cannot be corrected, because some SCSI disks do not implement READL and WRITEL commands that support disk bad block repair. OWNER_IDENTIFIER For magnetic tapes only. Overrides the processing of the owner identifier field. Use this keyword to interchange protected magnetic tapes between OpenVMS and other HP operating systems. SECURITY Allows you to continue mounting a volume if an error is returned because the volume has an invalid SECURITY.SYS file. You must have the user privilege VOLPRO or own the volume to use this keyword. SETID For magnetic tapes only. Prevents MOUNT from checking the file-set identifier in the first file header label of the first file on a continuation volume. Use this keyword only for ANSI-labeled volumes on which the file-set identifier of the first file on a continuation volume differs from the file-set identifier of the first file of the first volume that was mounted. SHADOW_MEMBERSHIP Allows you to override the write protection of former shadow set members. Applicable only if you have the volume shadowing option. See the HP Volume Shadowing for OpenVMS. When you mount a volume with this qualifier, the volume shadowing generation number is erased. If you attempt to remount the volume in a shadow set, the volume is considered an unrelated volume and receives a full copy operation from a current shadow set member.
The following command overrides the volume identification field, thus mounting a magnetic tape on MFA0 without a label specification:
$ MOUNT/OVERRIDE=IDENTIFICATION MFA0:/OWNER_UIC=uic
Requests that the specified UIC be assigned ownership of the volume while it is mounted, overriding the ownership recorded on the volume. If you are mounting a volume using the /FOREIGN qualifier, requests an owner UIC other than your current UIC.The parameter, uic, specifies the user identification code (UIC) in the following format:
[group,member]You must use brackets in the UIC specification. The group number is an octal number in the range 0 to 37776; the member number is an octal number in the range 0 to 177776.
To use the /OWNER_UIC qualifier for a Files-11 volume, you must have the user privilege VOLPRO, or your UIC must match the UIC written on the volume.
The following command mounts a disk device labeled WORK on DRA3 and assigns an owner UIC of [016,360]:
$ MOUNT/OWNER_UIC=[016,360] DRA3: WORK/POLICY=[NO]MINICOPY[=(OPTIONAL)], REQUIRE_MEMBERS, [NO]VERIFY_LABEL
Controls the setup and use of shadow sets. For more information about volume shadowing, see the HP Volume Shadowing for OpenVMS.The following table lists the keywords for this qualifier:
Keyword Description [NO]MINICOPY [=OPTIONAL] (Alpha/I64 only) Controls the setup and use of the shadowing minicopy function. Requires LOG_IO (logical I/O) privilege to create bitmaps.
The meaning of the keyword [NO]MINICOPY[=OPTIONAL] for the MOUNT/POLICY qualifier depends on the status of the shadow set, as follows:
- If the shadow set is not mounted, either on a standalone system or on any cluster member, and MINICOPY=OPTIONAL is specified, the shadow set is mounted and a write bitmap is created. The write bitmap enables a shadowing minicopy operation. You must specify /MOUNT/POLICY=MINICOPY[=OPTIONAL] on the initial mount of a shadow set, either on a standalone system or in a cluster, to enable the shadowing minicopy operation.
The OPTIONAL keyword allows the mount to continue, even if the system was unable to start the write bitmap. Likely reasons for the bitmap to fail to start properly include an improperly dismounted shadow set, a shadow set that requires a merge operation, and various resource problems. If the OPTIONAL keyword is omitted and the system is unable to start the write bitmap, the shadow set will not be mounted.
If you specify the /POLICY=MINICOPY=OPTIONAL qualifier and the shadow set was already mounted on another node in the cluster without the /POLICY=MINICOPY[=OPTIONAL], the MOUNT command succeeds but a write bitmap is not created.
If NOMINICOPY is specified, the shadow set is mounted but a write bitmap is not created.
- If a former member of the shadow set is returned to the shadow set, which has minicopy enabled, then a minicopy is started instead of a full copy. This is the default behavior and will occur even if you omit /POLICY=MINICOPY[=OPTIONAL]. If a minicopy is successfully started and then fails for some reasons, a full copy is performed.
If a minicopy cannot be started and the keyword OPTIONAL was omitted, the mount will fail.
If NOMINICOPY is specified, then no minicopy is performed, even if one is possible.
REQUIRE_MEMBERS Controls whether every physical device specified with the /SHADOW qualifier must be accessible when the MOUNT command is issued in order for the MOUNT command to take effect. The proposed members are either specified in the command line or found on the disk by means of the /INCLUDE qualifier. The behavior, without this qualifier, is that if one or more members is not accessible for any reason (such as a connectivity failure), then the virtual unit will be created with the members that are accessible.
This option is especially useful in the recovery of disaster-tolerant clusters because it ensures that the correct membership is selected after an event.
[NO]VERIFY_LABEL Require that any member that is going to be added to the shadow set must have a volume label of 'SCRATCH_DISK'. This will help insure that the wrong disk is not added to a shadow set by mistake. If VERIFY_LABEL is going to be used, then the disk that is going to be added to the set must be either initialized with the label 'SCRATCH_DISK' or a SET VOLUME/LABEL must be performed.
The default behavior is NOVERIFY_LABEL, which indicates that the volume label of the copy targets will not be checked.
/PROCESSOR=keyword
For magnetic tapes and Files-11 Structure Level 1 disks, requests that the MOUNT command associate an ancillary control process (ACP) to process the volume. The /PROCESSOR qualifier causes MOUNT to override the default manner in which ACPs are associated with devices.For Files-11 Structure Levels 2 and 5 disks, controls block cache allocation.
The following table lists the keywords for this qualifier:
Keyword Description UNIQUE Creates a new process to execute the default ancillary control process (ACP) image supporting the magnetic tape, Files-11 ODS-1, ISO 9660, or High Sierra formatted media being mounted. For Files-11 Structure Levels 2 and 5 disks, allocates a separate block cache.
SAME:device Uses an existing process that is executing the same ACP image supporting the magnetic tape, Files-11 ODS-1, ISO 9660, or High Sierra formatted media being mounted. For Files-11 Structure Levels 2 and 5 disks, takes the block cache allocation from the specified device.
file-spec Creates a new process to execute the ACP image specified by the file specification (for example, a modified or a user-written ACP). You cannot use wildcard characters, or node and directory names in the file specification. To use this keyword, you need CMKRNL and OPER privileges.
You must have the operator user privilege OPER to use the /PROCESSOR qualifier.
The following command directs MOUNT to mount a magnetic tape on MFA0 using the same ACP process currently associated with MTA1:
$ MOUNT/PROCESSOR=SAME:MTA1: MFA0:/PROTECTION=keyword
Specifies the protection code to be assigned to the volume.The following table describes the keywords for this qualifier:
Keyword Description protection code Specifies the protection code according to the standard syntax rules for specifying user protection (that is, system/owner/group/world). If you omit a protection category, that category of user is denied all access. If you do not specify a protection code, the default is the protection that was assigned to the volume when it was initialized.
XAR Enables enforcement of the extended record attribute (XAR) access controls. For more information about XAR, see the OpenVMS Record Management Services Reference Manual. DSI Enables XAR permissions Owner and Group for XARs containing Digital System Identifiers (DSI). For more information, see the OpenVMS Record Management Services Reference Manual. If you specify the /PROTECTION qualifier when you mount a volume with the /SYSTEM or /GROUP qualifier, the specified protection code overrides any access rights implied by the other qualifiers.
If you specify the /FOREIGN qualifier, the execute (E) or create (C) and delete (D) access codes are synonyms for logical I/O (L) and physical I/O (P). You can, however, specify the access codes physical I/O (P) or logical I/O (L), or both, to restrict the nature of input/output operations that different user categories can perform.
To use the /PROTECTION qualifier on a Files-11 volume, you must have the user privilege VOLPRO or your UIC must match the UIC written on the volume.
The following command mounts a device labeled WORKDISK on DKA1 and assigns a protection code. Access to the volume will be read, write, and create for system users; read, write, create, and delete for owner; read and create for group users; and read-only for users in the world category.
$ MOUNT/PROTECTION=(SYSTEM:RWE,O:RWED,G:RE,W:R) DKA1: WORKDISK/QUOTA (default)
/NOQUOTA
Controls whether quotas are to be enforced on the specified disk volume.The default is /QUOTA, which enforces the quotas for each user. The /NOQUOTA qualifier inhibits this checking. To specify the /QUOTA qualifier, you must have the user privilege VOLPRO or your UIC must match the UIC written on the volume.
The following command specifies that the disk volume labeled WORK on DRA3 has an owner UIC of [016,360] and no quotas enforced:
$ MOUNT/OWNER_UIC=[016,360]/NOQUOTA DRA3: WORK/REBUILD (default)
/NOREBUILD
Controls whether or not MOUNT performs a rebuild operation on a disk volume.If a disk volume is improperly dismounted (such as during a system failure), you must rebuild it to recover any caching limits that were enabled on the volume at the time of the dismount. By default, MOUNT attempts the rebuild. For a successful rebuild operation that includes reclaiming all of the available free space, you must mount all of the volume set members.
The rebuild may consume a considerable amount of time, depending on the number of files on the volume and, if quotas are in use, on the number of different file owners.
The following caches may have been in effect on the volume before it was dismounted:
- Preallocated free space (EXTENT cache)
- Preallocated file numbers (FILE_ID cache)
- Disk quota usage caching (QUOTA cache)
If caching was in effect for preallocated free space or file numbers, the rebuild time is directly proportional to the greatest number of files that ever existed on the volume at one time. If disk quota caching was in effect, you can expect additional time that is proportional to the square of the number of entries in the disk quota file.
If none of these items were in effect, the rebuild is not necessary and does not occur.
If you use the /NOREBUILD qualifier, devices can be returned to active use immediately. You can then perform the rebuild later with the DCL command SET VOLUME/REBUILD.
For information about how to rebuild the system disk, see the HP OpenVMS System Manager's Manual.
In this example, the volume WORKDISK is mounted on NODE$DKA2. Because the volume is found to have been improperly dismounted and the /REBUILD qualifier is in effect, MOUNT displays a message and proceeds to rebuild the volume.
$ MOUNT/REBUILD NODE$DKA2: WORKDISK %MOUNT-I-MOUNTED, WORKDISK mounted on _NODE$DKA2: %MOUNT-I-REBUILD, volume was improperly dismounted; rebuild in progressIn this example, the volume WORKDISK is found to have been improperly dismounted, but because the /NOREBUILD qualifier is specified, a rebuild is not performed. Instead, MOUNT displays a message to inform you that the rebuild is needed, and proceeds to make WORKDISK available for use as is. You can rebuild the volume later with the DCL command SET VOLUME/REBUILD.
$ MOUNT/NOREBUILD NODE$DKA2: WORKDISK %MOUNT-I-MOUNTED, WORKDISK mounted on _NODE$DKA2: %MOUNT-I-REBLDREQD, rebuild not performed; some free space unavailable; diskquota usage stale/RECORDSIZE=n
Specifies the number of characters in each record of a magnetic tape volume.The parameter, n, specifies the block size in the range 20 to 65,532 bytes if you are using OpenVMS RMS, or 18 to 65,534 bytes if you are not using OpenVMS RMS.
You typically use this qualifier with the /FOREIGN and /BLOCKSIZE qualifiers to read or write fixed-length records on a block-structured device. In this case, the record size must be less than or equal to the block size specified or used by default.
Use the /RECORDSIZE qualifier when mounting magnetic tapes without HDR2 labels (such as RT-11 magnetic tapes) to provide OpenVMS RMS with default values for the maximum record size.
In the following example, the magnetic tape is mounted on MTA0 with a default block size and record size of 512 characters:
$ MOUNT/FOREIGN/BLOCKSIZE=512/RECORDSIZE=512 MTA0:/SHADOW
Binds up to three physical devices into a shadow set represented by the virtual unit named in the command. This qualifier is applicable only if you have the volume shadowing option. See the HP Volume Shadowing for OpenVMS for additional information.The format of this qualifier is:
(virtual-unit-name[:] /SHADOW=(physical-device-name[:][,...]))This qualifier indicates that you are mounting a shadow set including the physical devices and the virtual unit that represents them to the system. This qualifier instructs MOUNT to expect a virtual unit name as the device-name parameter. Place the /SHADOW qualifier after the virtual-unit-name parameter.
Use the virtual unit naming format DSAn, where n is a unique number from 0 to 9999. For the physical-device-name, use the standard device-naming format $allocation-class$ddcu[:].
The following example shows how to create a shadow set wherein the software determines automatically the correct copy operation for the two shadow set members. In this case, $1$DUA10 is the more current volume and becomes the source of the copy operation to $1$DUA11.
$ MOUNT DSA0: /SHADOW=($1$DUA10:,$1$DUA11:) SHADOWVOL %MOUNT-I-MOUNTED, SHADOWVOL mounted on DSA0: %MOUNT-I-SHDWMEMSUCC, _$1$DUA10: (MEMBER1) is now a valid member of the shadow set %MOUNT-I-SHDWMEMCOPY, _$1$DUA11: (MEMBER2) added to the shadow set with a copy operationThe following command creates a volume set with the logical name TEST3013. The volume set TEST3013 is not shadowed. However, each element of the volume set (TEST3011 and TEST3012) is a shadowset, providing redundancy for the volume set as a whole.
$ MOUNT/BIND=TEST3013 DSA3011/SHADOW=($1$DUA402:,$1$DUA403:), DSA3012/SHADOW=($1$DUA404:,$1$DUA405:) TEST3011,TEST3012 TEST3013/SHARE
/NOSHARE
Specifies, for a disk volume, that the volume is shareable.If another user has already mounted the volume shareable, and you request it to be mounted with the /SHARE qualifier, any other qualifiers you enter are ignored.
By default, a volume is not shareable, and the MOUNT command allocates the device on which it is mounted.
If you previously allocated the device and specify the /SHARE qualifier, the MOUNT command deallocates the device so that other users can access it.
The /SHARE qualifier is incompatible with the /GROUP and /SYSTEM qualifiers.
The following command mounts the device labeled SLIP on DLA0, disables broadcasting of MOUNT messages, specifies that the volume is shareable, and assigns the logical name DISC:
$ MOUNT/NOMESSAGE/SHARE DLA0: SLIP DISC/SUBSYSTEM
/NOSUBSYSTEM
Enables protected subsystems and the processing of subsystem ACEs. Requires the SECURITY privilege.By default, the disk from which you boot has /SUBSYSTEM enabled but other disks do not. For further details on subsystems, see the HP OpenVMS Guide to System Security.
The following command mounts the volume labeled SLIP on DUA1 with mount messages disabled. Subsystems on the volume are accessible. MOUNT also assigns the logical name SACH.
$ MOUNT/NOMESSAGE/SUBSYSTEM DUA1: SLIP SACH/SYSTEM
Makes the volume public; that is, available to all users of the system, as long as the UIC-based volume protection allows them access.The logical name for the device is placed in the system logical name table. You must have the user privilege SYSNAM to use the /SYSTEM qualifier.
When you mount a volume with the /SYSTEM qualifier in a VMScluster system, you must use a volume label that is unique clusterwide, even if the specified volume is not mounted clusterwide.
The /SYSTEM qualifier is incompatible with the /GROUP, /OVERRIDE=IDENTIFICATION, and /SHARE qualifiers.
The following command mounts the volume labeled SLIP on DUA1 with mount messages disabled. The volume is made available systemwide. MOUNT also assigns the logical name SACH.
$ MOUNT/NOMESSAGE/SYSTEM DUA1: SLIP SACHThe following command creates the volume set named MASTER_PAY consisting of the initialized volumes labeled PAYVOL1, PAYVOL2, and PAYVOL3. These volumes are mounted physically on the devices named DB1, DB2, and DB3, respectively. The volume PAYVOL1 is the root volume of the set.
The volumes are mounted as system volumes to make them available to all users.
$ MOUNT/SYSTEM/BIND=MASTER_PAY - _$ DB1:,DB2:,DB3: PAYVOL1,PAYVOL2,PAYVOL3/UCS_SEQUENCE=escape_sequence
Supplies the escape sequence to select the coded graphic character set, a requirement when mounting an ISO 9660 volume for one of the Supplementary Volume Descriptors (SVDs).The parameter, escape_sequence, is a character sequence defined by the vendor who mastered the CD-ROM and is unique to the vendor's character set conversion tables.
Use the /UCS_SEQUENCE qualifier when mounting an ISO 9660 CD-ROM that contains non-ASCII character sets on OpenVMS.
An ISO 9660 volume may contain an SVD that specifies a graphic character set. This graphic character, when selected at mount time, is used as default character set when displaying a volume's directories and file names.
The /UCS_SEQUENCE qualifer defines the escape sequence to select the coded graphic character set.
All ISO 9660 volumes contain a Primary Volume Descriptor (PVD) that uses ASCII (ISO 646-IRV) as the character set. Both ISO 9660 and OpenVMS file naming conventions use the same subset of ASCII characters when displaying a volume's directories and file names.
/UNDEFINED_FAT=record-format:[record-attributes:][record-size]
Establishes default file attributes to be used for records on ISO 9660 media for which no record format has been specified.The following table describes the parameters:
Parameter Description record-format Specifies the format for all records in a file: FIXED, VARIABLE, STREAM, STREAM_LF, STREAM_CR, LSB_VARIABLE, or MSB_VARIABLE. For a description of these record formats, see the discussion of the RMS field FAB$B_RFM in the OpenVMS Record Management Services Reference Manual. record-attributes Specifies the attributes for all records in a file: NONE, CR, FTN, PRN, NOBKS. Applies only to non-STREAM record formats. For a description of these record attributes, see the discussion of the RMS field FAB$B_RAT in the OpenVMS Record Management Services Reference Manual. record-size Specifies the maximum record size for all records in a file: 0 to 32767. Applies only to FIXED or STREAM record formats. For a description of possible RMS record sizes, see the discussion of the RMS field FAB$W_MRS in the OpenVMS Record Management Services Reference Manual. ISO 9660 media can be mastered from platforms that do not support semantics of files containing predefined record formats. The /UNDEFINED_FAT qualifier establishes default file attributes to be used for records on ISO 9660 media for which no record format has been specified.
The /UNDEFINED_FAT qualifier is valid only in conjunction with the /MEDIA_FORMAT=CDROM qualifier.
This qualifier temporarily overrides all undefined file types, replacing them with selectable record formats having selectable record attributes and selectable record sizes as shown in the following illustration:
In the following example, the volume labeled OFFENS is mounted on DKA1 and all files on the volume are defined to be fixed length, carriage return, and 80 bytes in length. MOUNT also assigns the logical name STRAT.
$ MOUNT/MEDIA_FORMAT=CDROM/UNDEFINED_FAT=(FIXED:CR:80) DKA1: OFFENS STRAT |
In the following example, the volume labeled OFFENS is mounted on DKA1 with the /NOUNLOAD qualifier so that it can be dismounted without being physically unloaded. MOUNT also assigns the logical name STRAT.
$ MOUNT/NOUNLOAD DKA1: OFFENS STRAT |
The parameter, n, specifies a value from 7 to 80 that overrides the default value specified when the volume was initialized.
When a file is opened, the file system uses the mapping pointers to access data in the file. Use MOUNT/WINDOWS to override the default value specified when the volume was initialized. If no value was specified at volume initialization, the default number of mapping pointers is 7.
You must have the operator user privilege (OPER) to use the /WINDOWS qualifier.
The following command makes the volume labeled GONWITH on DKA2 available systemwide and assigns the logical name THE_WINDOW. You override the default number of mapping pointers by specifying a value of 25 for the /WINDOWS qualifier.
$ MOUNT/SYSTEM/WINDOWS=25 DKA2: GONWITH THE_WINDOW |
By default, a volume is considered read/write when it is mounted. You can specify /NOWRITE to provide read-only access to protect files. This is equivalent to write-locking the device.
For host-based volume shadowing devices, there are other considerations. See the HP Volume Shadowing for OpenVMS manual for more information.
The following command mounts a volume labeled BOOKS on NODE$DKA1 and then proceeds to mount it on each node in the existing OpenVMS Cluster. The /NOWRITE qualifier makes the volume available for read-only access.
$ MOUNT/CLUSTER/NOWRITE NODE$DKA1: BOOKS |
For examples 1 and 2, operator assistance is not required, assuming the volumes are in the drives. Examples 3 to 6 describe operator-assisted mounts. Examples 7 and 8 describe mounting ISO 9660 CD-ROM volume sets, example 9 makes subsystems on a volume accessible, and example 10 demonstrates mounting a shadow set.
| #1 |
|---|
$ MOUNT MTA0: MATH06 STAT_TAPE
%MOUNT-I-MOUNTED, MATH06 mounted on _MTA0:
$ COPY ST061178.DAT STAT_TAPE:
|
This MOUNT command requests the magnetic tape whose volume label is MATH06 to be mounted on the device MTA0 and assigns the logical name STAT_TAPE to the volume.
Subsequently, the COPY command copies the disk file ST061178.DAT to the magnetic tape.
| #2 |
|---|
$ ALLOCATE DM:
%DCL-I-ALLOC, _DMB2: allocated
$ MOUNT DMB2: TEST_FILES
%MOUNT-I-MOUNTED, TEST_FILES mounted on _DMB2:
|
This ALLOCATE command requests an available RK06/RK07 device. After the response from the ALLOCATE command, the physical volume can be placed on the allocated device. Then, the MOUNT command mounts the volume.
| #3 |
|---|
$ MOUNT DM: TEST_FILES
%MOUNT-I-OPRQST, Please mount volume TEST_FILES in device _DMB2:
%MOUNT-I-MOUNTED, TEST_FILES mounted on _DMB2:
|
This example achieves the same result as the series of commands in the preceding example. The MOUNT command requests an available RK06/RK07 device for the volume labeled TEST_FILES. After the volume is physically mounted in the device named in the response from MOUNT, the system completes the operation. Note that the device is automatically allocated by MOUNT.
| #4 |
|---|
$ MOUNT DYA1: TESTSYS
%MOUNT-I-OPRQST, Please mount volume TESTSYS in device DYA1:
[Ctrl/Y]
$ EXIT
%MOUNT-I-OPRQSTCAN, operator request canceled
|
This MOUNT command requests the operator to mount the volume TESTSYS on the device DYA1. In this example, the user cancels the mount by pressing Ctrl/Y. Notice that the image must exit before the mount request is actually canceled. Here, the EXIT command causes the image to exit. However, any command that is not performed within the command interpreter causes the current image to exit.
| #5 |
|---|
$ MOUNT DYA1: TESTSYS
%MOUNT-I-OPRQST, Device _DYA1: is not available for mounting.
%MOUNT-I-OPRQSTCAN, operator request canceled
%MOUNT-I-OPRQST, Please mount volume TESTSYS in device _DYA1:
%MOUNT-I-MOUNTED, TESTSYS mounted on _DYA1:
%MOUNT-I-OPRQSTDON, operator request canceled - mount
completed successfully
|
This MOUNT command requests the operator to mount the volume TESTSYS on the device DYA1. Because DYA1 is allocated to another user, the device cannot be mounted. In this case, the user can wait for the device to become available, redirect the mount to another device, or abort the mount. Here, the user remains in operator-assisted mount waiting for the process that is using the device to deallocate it.
At this point, because the device is available but no volume is mounted, the original mount request is canceled, and a new request to mount TESTSYS is issued. Finally, the operator places the volume in the drive and lets MOUNT retry the mount. When the mount completes, the request is canceled.
| #6 |
|---|
$ MOUNT DYA1: TESTSYS/COMMENT="Is there an operator around?"
%MOUNT-I-OPRQST, Please mount volume TESTSYS in device _DYA1:
Is there an operator around?
%MOUNT-I-NOOPR, no operator available to service request
.
.
.
%MOUNT-I-MOUNTED, TESTSYS mounted on _DYA1:
%MOUNT-I-OPRQSTDON, operator request canceled - mount
completed successfully
|
This MOUNT command requests the operator to mount the volume TESTSYS on the device DYA1. In this example, no operator is available to service the request. At this point, the user can abort the mount by pressing Ctrl/Y, or wait for an operator. Here, the user waited, and an operator eventually became available to service the request.
| #7 |
|---|
$ MOUNT/SYSTEM/MEDIA=CDROM $1$DKA1 USER
%MOUNT-I-CDROM_ISO, USER:VMS_ONLINE_DOCUMENTATION (1 of 4) ,
mounted on _$1$DKA1: (CDROM)
$ MOUNT/SYSTEM/MEDIA=CDROM $1$DKA2 PROGRAMMING_1
%MOUNT-I-CDROM_ISO, PROGRAMMING_1:VMS_ONLINE_DOCUMENTATION (2 of 4) ,
mounted on _$1$DKA2: (CDROM)
$ MOUNT/SYSTEM/MEDIA=CDROM $1$DKA3 PROGRAMMING_2
%MOUNT-I-CDROM_ISO, PROGRAMMING_2:VMS_ONLINE_DOCUMENTATION (3 of 4) ,
mounted on _$1$DKA3: (CDROM)
MOUNT/SYSTEM/MEDIA=CDROM $1$DKA4 MANAGEMENT
%MOUNT-I-CDROM_ISO, MANAGEMENT:VMS_ONLINE_DOCUMENTATION (4 of 4) ,
mounted on _$1$DKA4: (CDROM)
|
These commands mount each member of a four-member ISO 9660 volume set whose volume-set name is VMS_ONLINE_DOCUMENTATION.
| #8 |
|---|
$ MOUNT/SYSTEM/MEDIA=CDROM $1$DKA1,$1$DKA2,$1$DKA3,$1$DKA4
USER,PROGRAMMING_1,PROGRAMMING_2,MANAGEMENT
%MOUNT-I-CDROM_ISO, USER:VMS_ONLINE_DOCUMENTATION (1 of 4) , mounted on
_$1$DKA1: (CDROM)
%MOUNT-I-CDROM_ISO, PROGRAMMING_1:VMS_ONLINE_DOCUMENTATION (2 of 4) ,
mounted on _$1$DKA2: (CDROM)
%MOUNT-I-CDROM_ISO, PROGRAMMING_2:VMS_ONLINE_DOCUMENTATION (3 of 4) ,
mounted on _$1$DKA3: (CDROM)
%MOUNT-I-CDROM_ISO, MANAGEMENT:VMS_ONLINE_DOCUMENTATION (4 of 4) ,
mounted on _$1$DKA4: (CDROM)
|
This command mounts four members of an ISO 9660 volume set whose volume set name is VMS_ONLINE_DOCUMENTATION.
| #9 |
|---|
$ MOUNT/SYSTEM/SUBSYSTEM $8$DKA300: ATLANTIS_WORK1
%MOUNT-I-MOUNTED, ATLANTIS_WORK1 mounted on _$8$DKA300: (ATLANTIS)
$ SHOW DEVICE/FULL $8$DKA300:
Disk $8$DKA300: (ATLANTIS), device type RZ24, is online, mounted,
file-oriented device, shareable, served to cluster via MSCP Server,
error logging is enabled.
Error count 0 Operations completed 385
Owner process "" Owner UIC [SYSTEM]
Owner process ID 00000000 Dev Prot S:RWPL,O:RWPL,G:R,W
Reference count 1 Default buffer size 512
Total blocks 409792 Sectors per track 38
Total cylinders 1348 Tracks per cylinder 8
Allocation class 8
Volume label "ATLANTIS_WORK1" Relative volume number 0
Cluster size 3 Transaction count 1
Free blocks 396798 Maximum files allowed 51224
Extend quantity 5 Mount count 1
Mount status System Cache name "_$8$DKA700:XQPCACHE"
Extent cache size 64 Maximum blocks in extent cache 39679
File ID cache size 64 Blocks currently in extent cache 0
Quota cache size 50 Maximum buffers in FCP cache 295
Volume owner UIC [VMS,PLATO] Vol Prot S:RWCD,O:RWCD,G:RWCD,W:RWCD
Volume status: ODS-2, subject to mount verification, protected
subsystems enabled, file high-water marking, write-through caching enabled.
|
The MOUNT command mounts a volume labeled ATLANTIS_WORK1, which is available systemwide. Subsystems on the volume are accessible.
| #10 |
|---|
$ MOUNT DSA0: /SHADOW=($200$DKA200:,$200$DKA300:,$200$DKA400:) X5OZCOPY
%MOUNT-I-MOUNTED, X5OZCOPY mounted on _DSA0:
%MOUNT-I-SHDWMEMSUCC, _$200$DKA200: (VIPER1) is now a valid member of
the shadow set
%MOUNT-I-SHDWMEMSUCC, _$200$DKA300: (VIPER1) is now a valid member of
the shadow set
%MOUNT-I-SHDWMEMSUCC, _$200$DKA400: (VIPER1) is now a valid member of
the shadow set
$ DISMOUNT DSA0:
$ MOUNT/INCLUDE DSA0: /SHADOW=$200$DKA200: X5OXCOPY
%MOUNT-I-MOUNTED, X5OZCOPY mounted on _DSA0:
%MOUNT-I-SHDWMEMSUCC, _$200$DKA200: (VIPER1) is now a valid member of
the shadow set
%MOUNT-I-AUTOMEMSUCC, _$200$DKA300: (VIPER1) automatically added to the
shadow set
%MOUNT-I-AUTOMEMSUCC, _$200$DKA400: (VIPER1) automatically added to the
shadow set
|
In this example, an existing shadow set is mounted in two ways. The first MOUNT command specifies each member of the shadow set with the /SHADOW qualifier. Then, after DSA0: is dismounted, the second MOUNT command uses the /INCLUDE qualifier to automatically mount all members of the shadow set.
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