IBM Tivoli Storage Manager, Version 7.1

Sharing an IBM 3494 library by static partitioning of drives

If your IBM® 3494 library is not on a SAN, you can use partitioning to share that library among Tivoli® Storage Manager servers.

About this task

Tivoli Storage Manager uses the capability of the 3494 library manager to partition a library between multiple Tivoli Storage Manager servers. Library partitioning differs from library sharing on a SAN in that there are no Tivoli Storage Manager library managers or library clients.

When you partition a library on a LAN, each server has its own access to the same library. For each server, you define a library with tape volume categories unique to that server. Each drive in the library is defined to only one server. Each server can then access only the drives that are assigned to it. As a result, library partitioning does not allow dynamic sharing of drives or tape volumes because they are pre-assigned to different servers that use different names and category codes.

To configure static partitioning of drives, complete the following steps. For details and examples of commands that are issued in the procedure, see Configuring libraries for use by one server.

Procedure

Set up the library on the system.
Define 3494 library devices to the first Tivoli Storage Manager server by completing the following steps:
1. Define the 3494 library on the server.
2. Define a path from the server to the library.
3. Define the drives in the library that are partitioned to the server.
4. Define a path from the server to each of the drives.
5. Define Tivoli Storage Manager device classes to classify drives according to type.
6. Define a storage pool and associated it with the device class that you created.
7. Verify your device definitions by issuing QUERY commands for each storage object.
Repeat the substeps in Step 2 to define library devices for the second server.

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