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IBM High Availability Cluster Multi-Processing for AIX (HACMP) detects system failures and manages failover (sometimes referred to a "takeover") to a recovery processor with a minimal loss of end-user time. This appendix describes how to set up a Tivoli Storage Manager server on a system in an AIX HACMP cluster. If your system fails, the Tivoli Storage Manager server will be brought back up on another system in the cluster.
Attention: A Tivoli Storage Manager administrative client is required on both the primary and backup server machines. However, the Tivoli Storage Manager backup-archive and HSM clients are not supported for use in an HACMP environment. In addition, HACMP is not supported in a storage area network (SAN) or library sharing environment.
If a Tivoli Storage Manager server must manage more than one removable media storage device, you can configure two Tivoli Storage Manager servers to run on different systems in an HACMP cluster. Either system can run both servers if the other system fails. To do this, follow the same procedure but use another file system that is accessible to both servers.
The hardware requirements for configuring a Tivoli Storage Manager server for failover are:
In this section the terms production node and standby node refer to the two HACMP nodes on which the Tivoli Storage Manager server will run.