To prepare the V5 server for migration, ensure that the server is upgraded to V5.5.6 or later. Then, on the V5.5.6 or later server, install the z/OS® media server. Issue the ZMSPREPARE command to identify additional steps that must be completed before data migration. Then, back up data.
About this task
Important: It is possible,
after the upgrade to V7.1 is complete,
that conditions might cause the need to temporarily revert to the
previous version of the server. Successfully reverting to the previous
version of the server is possible only if you completed all preparation
steps.
Modifying the server before the migration
A command must be run on the server to prevent one type of problem during the migration process. Some modifications to typical server settings are necessary to prepare for the migration.- Upgrading the V5 server to V5.5.6
To prepare the Tivoli Storage Manager V5 server for the upgrade, ensure that Tivoli Storage Manager V5.5.6 or later is installed. - Installing Tivoli Storage Manager for z/OS Media
To install Tivoli Storage Manager for z/OS Media, use the appropriate installation commands. Then, complete the configuration tasks. - Defining a server that corresponds to the z/OS media server
On the V5 system, create a server definition that corresponds to the z/OS media server. The z/OS media server will be used during the DSMSERV INSERTDB step to access upgrade media on tape. After the migration is complete, the z/OS media server will be used to access client data that is stored on tape. - Disabling sessions
In preparation for the migration, prevent activity on the server by disabling new sessions. Cancel any existing sessions. - Analyzing the Tivoli Storage Manager server by using ZMSPREPARE
To analyze the Tivoli Storage Manager V5 server in preparation for the migration, use the ZMSPREPARE command. The ZMSPREPARE command provides information that is useful for completing the steps that you must take before data migration can begin. - Removing volumes of disk-based copy storage pools
Before you migrate the Tivoli Storage Manager V5.5 server on z/OS to V7.1, delete all disk-based storage pool volumes or mark them as destroyed. - Backing up data from disk-based primary storage pools
Disk-based primary storage pools will not be available after the migration. Therefore, you must create a tape copy storage pool for each disk-based primary storage pool that does not have one. Then, back up all data from disk-based primary storage pools to tape copy storage pools. - Identifying and deleting FILE backup sets
Backup sets that use FILE device classes cannot be regenerated, moved, or accessed after you migrate your data. For this reason, delete any backup sets that use FILE device classes. - Creating the Tivoli Storage Manager server options file
To create a server options file, start by using the options file from the Tivoli Storage Manager V5 server and make appropriate changes for the V7.1 server. - Running the ZMSPREPARE command again to verify prerequisites
After you have run the ZMSPREPARE command once and have made any required changes in your environment, run the ZMSPREPARE command again to ensure that all migration prerequisites are met. - Backing up the server database
Immediately before you migrate the server, perform a full database backup to a tape device class. - Stopping the server before the migration
On the Tivoli Storage Manager V5 server that is running on z/OS, stop all server processes. Then, unmount any tapes that are mounted and stop the server. - Preparing the database of a V5 server for migration
Before you extract the data from the database, you must prepare the server database by using the DSMUPGRD PREPAREDB utility. If you have multiple servers on a single system, you must repeat this task for each server.