minutes. The standby library manager is the active library manager when its System Status displays Auto/Online mode.

2.Contact the service representative to repair the failed library manager.

The failed library manager may recover from the failure and become available as the standby library manager after the database is synchronized.

3.If the failure occurred while inserting cartridges into the high-capacity I/O facility, do not remove the cartridges. Leave the cartridges in place and the operation will restart automatically. Cartridges inserted in the Convenience I/O station that remain in the station will need to be removed from the station and then re-inserted after the library manager re-initializes.

4.Continue with ªBTLS Host Actionº.

BTLS Host Action

When the library manager is in the Auto/Online Mode, do the following BTLS host actions:

1.Display the unit status by issuing the following command for each tape drive in the library:

D U,,, xxx2

2.Redrive the mount for each tape drive showing MTP (mount pending) by issuing either of the following commands:

v From TSO terminals, issue the TSO library mount command. LIBRARY MOUNT UNIT(unit)[VOLSER(volser)]

or

vSubmit JCL to perform a library mount. See Basic Tape Library Support User's Guide and Reference for commands.

3.Submit tape jobs.

4.Resubmit any tape jobs that abended.

This process completes the MVS/BTLS recovery procedure.

DFSMS System Managed Tape Messages

When a failure or exception condition is reported to a host system operating under the DFSMS System Managed Tape environment, the following messages are generated. For each message, a brief description about the cause of the condition is described along with appropriate recovery actions.

Also refer to MVS/ESA System Messages, Volume 2, GC28-1481 for additional CBRxxxx messages generated as a result of error or exception conditions detected with the DFSMS System Managed Tape environment software.

In the messages, library-nameis the name de®ned by the installation for a particular library.

2. Where xxx is the device address.

268Magstar 3494 Tape Library Operator Guide

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IBM Magstar 3494 manual Dfsms System Managed Tape Messages, Btls Host Action