HP OpenVMS systems documentation

Chapter 8
8	Configuring OpenVMS Clusters for Availability
8.1	Availability Requirements
8.2	How OpenVMS Clusters Provide Availability
8.2.1	Shared Access to Storage
8.2.2	Component Redundancy
8.2.3	Failover Mechanisms
8.2.4	Related Software Products
8.3	Strategies for Configuring Highly Available OpenVMS Clusters
8.3.1	Availability Strategies
8.4	Strategies for Maintaining Highly Available OpenVMS Clusters
8.4.1	Strategies for Maintaining Availability
8.5	Availability in a LAN OpenVMS Cluster
8.5.1	Components
8.5.2	Advantages
8.5.3	Disadvantages
8.5.4	Key Availability Strategies
8.6	Configuring Multiple LANs
8.6.1	Selecting MOP Servers
8.6.2	Configuring Two LAN Segments
8.6.3	Configuring Three LAN Segments
8.7	Availability in a DSSI OpenVMS Cluster
8.7.1	Components
8.7.2	Advantages
8.7.3	Disadvantages
8.7.4	Key Availability Strategies
8.8	Availability in a CI OpenVMS Cluster
8.8.1	Components
8.8.2	Advantages
8.8.3	Disadvantages
8.8.4	Key Availability Strategies
8.9	Availability in a MEMORY CHANNEL OpenVMS Cluster
8.9.1	Components
8.9.2	Advantages
8.9.3	Disadvantages
8.9.4	Key Availability Strategies
8.10	Availability in an OpenVMS Cluster with Satellites
8.10.1	Components
8.10.2	Advantages
8.10.3	Disadvantages
8.10.4	Key Availability Strategies
8.11	Multiple-Site OpenVMS Cluster System
8.11.1	Components
8.11.2	Advantages
8.12	Disaster-Tolerant OpenVMS Cluster Configurations
Chapter 9
9	Configuring CI OpenVMS Clusters for Availability and Performance
9.1	CI Components
9.2	Configuration Assumptions
9.3	Configuration 1
9.3.1	Components
9.3.2	Advantages
9.3.3	Disadvantages
9.3.4	Key Availability and Performance Strategies
9.4	Configuration 2
9.4.1	Components
9.4.2	Advantages
9.4.3	Disadvantages
9.4.4	Key Availability and Performance Strategies
9.5	Configuration 3
9.5.1	Components
9.5.2	Advantages
9.5.3	Disadvantages
9.5.4	Key Availability and Performance Strategies
9.6	Configuration 4
9.6.1	Components
9.6.2	Advantages
9.6.3	Disadvantages
9.6.4	Key Availability and Performance Strategies
9.7	Summary
Chapter 10
10	Configuring OpenVMS Clusters for Scalability
10.1	What Is Scalability?
10.1.1	Scalable Dimensions
10.2	Strategies for Configuring a Highly Scalable OpenVMS Cluster
10.2.1	Scalability Strategies
10.3	Scalability in CI OpenVMS Clusters (Alpha and VAX)
10.3.1	Two-Node CI OpenVMS Cluster
10.3.2	Three-Node CI OpenVMS Cluster
10.3.3	Seven-Node CI OpenVMS Cluster
10.3.4	Guidelines for CI OpenVMS Clusters
10.3.5	Guidelines for Volume Shadowing in CI OpenVMS Clusters
10.4	Scalability in DSSI OpenVMS Clusters (Alpha and VAX)
10.4.1	Two-Node DSSI OpenVMS Cluster
10.4.2	Four-Node DSSI OpenVMS Cluster with Shared Access
10.4.3	Four-Node DSSI OpenVMS Cluster with Some Nonshared Access
10.5	Scalability in MEMORY CHANNEL OpenVMS Clusters (Alpha Only)
10.5.1	Two-Node MEMORY CHANNEL Cluster
10.5.2	Three-Node MEMORY CHANNEL Cluster
10.5.3	Four-Node MEMORY CHANNEL OpenVMS Cluster
10.6	Scalability in SCSI OpenVMS Clusters (Alpha Only)
10.6.1	Two-Node Fast-Wide SCSI Cluster
10.6.2	Two-Node Fast-Wide SCSI Cluster with HSZ Storage
10.6.3	Three-Node Fast-Wide SCSI Cluster
10.6.4	Four-Node Ultra SCSI Hub Configuration
10.7	Scalability in OpenVMS Clusters with Satellites (Alpha, VAX, and I64)
10.7.1	Six-Satellite OpenVMS Cluster
10.7.2	Six-Satellite OpenVMS Cluster with Two Boot Nodes
10.7.3	Twelve-Satellite LAN OpenVMS Cluster with Two LAN Segments
10.7.4	Forty-Five Satellite OpenVMS Cluster with FDDI Ring
10.7.5	High-Powered Workstation OpenVMS Cluster (1995 Technology)
10.7.6	High-Powered Workstation OpenVMS Cluster (2004 Technology)
10.7.7	Guidelines for OpenVMS Clusters with Satellites
10.7.8	Extended LAN Configuration Guidelines
10.7.9	System Parameters for OpenVMS Clusters
10.8	Scaling for I/Os
10.8.1	MSCP Served Access to Storage
10.8.2	Disk Technologies
10.8.3	Read/Write Ratio
10.8.4	I/O Size
10.8.5	Caches
10.8.6	Managing "Hot" Files
10.8.7	Volume Shadowing