Configuring the Tivoli Storage Manager for Space Management client

Before you configure space management for a file system, you must configure the Tivoli® Storage Manager for Space Management client itself. You also must configure some options that apply to all space-managed file systems.

The Tivoli Storage Manager for Space Management client is configured by setting options in the dsm.sys and dsm.opt files. The options generally affect all space-managed file systems, and determine the following things:

• The Tivoli Storage Manager servers to which your files migrate or premigrate
• The include-exclude file that applies for each Tivoli Storage Manager server.
• How often space usage is checked on your file systems
• How often your file systems are automatically reconciled
• How often candidates are searched for automatic migrations
• How many automatic migration processes for each file system can migrate files in parallel
• How many days to keep an obsolete file copy in Tivoli Storage Manager storage before the copy expires.
• Whether to use two-way orphan check reconciliation (for GPFS™ only)

During installation of the Tivoli Storage Manager for AIX® and Linux backup-archive clients, sample options files (dsm.sys.smp and dsm.opt.smp) are placed in the following directories.

• On AIX: /usr/tivoli/tsm/client/ba/bin64
• On Linux x86_64: /opt/tivoli/tsm/client/ba/bin

If you install both the backup-archive client and the Tivoli Storage Manager for Space Management client at the same time, copy and rename the sample options files. Modify them for both clients. If you previously installed the backup-archive client and you set up your options files, modify them for the HSM client.

After you select options for the Tivoli Storage Manager for Space Management client, you must restart all space management daemons to activate the changes. All space-managed file systems must be mounted either automatically or manually each time you restart your system to start space management.

The Tivoli Storage Manager for Space Management client shares the following common files and code with the AIX and Linux backup-archive clients:

• Communication protocols
• The dsm.opt options file
• The dsm.sys options file
• The include-exclude file
• Node registration
• Server file spaces

On GPFS file systems, you can use the GPFS policy engine to monitor space thresholds and search for migration candidates.

For information about configuring GPFS integration with the Tivoli Storage Manager for Space Management client, see the Tivoli field guide TSM for Space Management for UNIX-GPFS Integration Part I: Policy-driven Threshold Migration at http://www.ibm.com/support/docview.wss?uid=swg27018848.