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Updated: 11 December 1998

Volume Shadowing for OpenVMS


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Index
Index
Examples
3-1 Nodes Not Registered to Use Volume Shadowing
3-2 MODPARAMS.DAT File
3-3 LANCP Database Example of a Satellite Node
3-4 DECnet Database Example of a Satellite Node
4-1 Creating a Shadow Set
4-2 Using the /NOASSIST Qualifier
4-3 Using the /CLUSTER Qualifier
4-4 Adding Disk to an Existing Shadow Set
4-5 Mounting a Shadowed Volume Set
4-6 Dissolving a Shadow Set
5-1 Item List to Create and Mount a Shadow Set
5-2 Item List for Adding a Member to a Shadow Set
5-3 Item List for Creating and Mounting a Volume Set
5-4 Removing a Member from a Shadow Set
5-5 Dismounting and Dissolving a Shadow Set Locally
5-6 Dismounting and Dissolving a Shadow Set Across the Cluster
6-1 Copy Operation: Creating a New Shadow Set
6-2 Copy Operation: Adding a Member to an Existing Shadow Set
6-3 No Copy Operation: Rebuilding a Shadow Set
6-4 Merge Operation: Rebuilding a Shadow Set
A-1 Migrating a Phase I Shadow Set to Phase II
Figures
1-1 Elements of a Shadow Set
1-2 Shadow Sets Accessed Through the MSCP Server
2-1 Levels of Availability
2-2 Configuration of a Shadow Set (One CPU, One Controller)
2-3 Configuration of a Shadow Set (One CPU, Two Controllers)
2-4 Configuration of a Shadow Set (An OpenVMS Cluster, Dual Controllers)
2-5 Configuration of a Shadow Set (Highly Available Local Area OpenVMS Cluster)
2-6 Configuration of a Shadow Set (With Multiple Star Couplers and Multiple Controllers)
2-7 Configuration of a Shadowed FDDI Cluster
3-1 Booting Satellite Nodes
6-1 Steady State Transitions
6-2 Copy Operation Transitions
6-3 Minimerge Operation Transitions
6-4 Merge Operation Transitions
Tables
2-1 Types of Device Failures
3-1 Volume Shadowing Parameters
3-2 SHADOWING Parameter Settings
4-1 MOUNT Command Qualifiers
4-2 F$GETDVI Items for Volume Shadowing
5-1 SYS$MOUNT Item Codes
5-2 $DISMOU Flag Options
5-3 SYS$GETDVI Item Codes
6-1 Information in the Storage Control Block (SCB)
8-1 Copy Times (In Minutes) for Two-Member RA82 Shadow Sets
8-2 RAID Levels


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