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The Library Manager operator and the host operator should communicate actively
with each other to reduce the amount of down time and ensure the accuracy of
this procedure.
Start Library Manager and Host Recovery Procedure
(DFSMS/MVS or z/OS)
Follow each step of the following procedure without deviation.
Library Manager Recovery Starts (DFSMS/MVS or z/OS)
Perform one of the following procedures, depending on the Library Manager
configuration of your 3494 Tape Library.
Single Library Manager Configuration:
For a single Library Manager configuration, perform the following:
v Contact host operations and report what has occurred at the Library Manager:
– If a CHECK-1 or a processor exception occurred, the Library Manager
attempts to restart itself automatically.
Note: If there is no change on the System Status window and messages after
30 minutes, do a manual restart. Do not power off the Library
Manager. Press the Ctrl + Alt + Del key sequence to restart the Library
Manager.
You may need to repeat this procedure. If there is no response after the
second attempt to recover the Library Manager, call your next level of
support.
– If the failure is anything other than a CHECK-1, restart the Library Manager
manually by pressing the Ctrl + Alt + Del key sequence.
– While waiting for the Library Manager to initialize and enter the Auto mode,
Online state, go to "Library Manager Recovers (DFSMS/MVS or z/OS)."
Note: This action takes approximately 20 minutes.
Dual Library Manager Configuration:
For a dual Library Manager configuration, no Library Manager corrective action is
needed. The standby Library Manager switches control from the active Library
Manager automatically.
If the active Library Manager is not responding and the standby Library Manager
does not indicate that it is switching to active after five minutes (see Figure 282 on
page 438), perform the previous steps for a single Library Manager on the one that
failed.
While waiting for the Library Manager to initialize and go to the Auto mode,
Online state, go to "Library Manager Recovers (DFSMS/MVS or z/OS)."
Library Manager Recovers (DFSMS/MVS or z/OS)
Perform one of the following procedures, depending on the Library Manager
configuration of your 3494 Tape Library.
Chapter 8. Problem Determination Procedures
437
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