AIX operating systems

Requirements for a PowerHA cluster

IBM PowerHA® SystemMirror for AIX® detects system failures and manages failover to a recovery processor with a minimal loss of user time.

The following hardware requirements are for configuring the Tivoli® Storage Manager server:
  • A hardware configuration that is suitable for PowerHA. The removable media storage devices for the Tivoli Storage Manager server must be physically connected to at least two nodes of the PowerHA cluster on a shared bus (including a SAN).
  • Sufficient shared disk space to hold the Tivoli Storage Manager database, recovery logs, instance directory, and disk storage pools to be used. See Managing inventory capacity to determine how much space is required for the database and recovery log and to ensure the availability of the database and recovery log.
  • A TCP/IP network.
Tip: If a Tivoli Storage Manager server manages removable media storage devices, you can configure two Tivoli Storage Manager servers to run on different systems in an PowerHA cluster. Either system can run both servers if the other system fails. To configure two Tivoli Storage Manager servers to run on different systems in an PowerHA cluster, use another file system that is accessible to both servers.