IC66116: LARGE NUMBER OF TAPE DRIVES CAN CAUSE VOLUME MOUNTS TO PERFORM SLOWLY

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Volume mounts in a tape library which has a large number of
    drives may take a long period of time. This problem is most
    common in virtual tape libraries with more than 100 tape
    drives.
    -
    The time delay will be between the start of a client session,
    library sharing session, or any other operation which
    requires a volume mount until the volume is actually mounted:
    -
    ANR8337I LTO volume V00003L3 mounted in drive DRIVE1
    (/dev/rmt192)
    -
    Note: The fix for this problem is for a specific condition
    related to tape drive selection performance. There are other
    possible problems that can affect volume mount performance
    which are not related to Tivoli Storage Manager server
    function.
    Tivoli Storage Manager Versions Affected:
    5.4, 5.5, and 6.1 on all platforms
    Initial Impact:
    Medium
    Additional Keywords:
    TSM VTL
    

Local fix

  • Define 80 or fewer tape drives in the Tivoli Storage Manager
    library. If necessary, create multiple libraries with up
    to 80 drives until a fix is available.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All Tivoli Storage Manager servers acting as *
    *                                                              *
    *                 a library manager of a library containing    *
    *                 large number of drives and experiencing slow *
    *                                                              *
    *                 mount performance.                           *
    ****************************************************************
    * PROBLEM DESCRIPTION: See ERROR DESCRIPTION.                  *
    ****************************************************************
    * RECOMMENDATION: Apply fixing level when available. This      *
    *                 problem is currently projected to be fixed   *
    *                 in levels 5.5.5, 6.1.4, and 6.2.1. Note that *
    *                                                              *
    *                 this is subject to change at the discretion  *
    *                 of IBM.                                      *
    ****************************************************************
    *
    

Problem conclusion

  • This situation's mount performance was improved.
    Affected platforms:  AIX, HP-UX, Sun Solaris, Linux, and
    Windows.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC66116

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    61A

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-02-05

  • Closed date

    2010-03-15

  • Last modified date

    2010-03-15

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    TSM SERVER

  • Fixed component ID

    5698ISMSV

Applicable component levels

  • R54A PSY

       UP

  • R54H PSY

       UP

  • R54L PSY

       UP

  • R54S PSY

       UP

  • R54W PSY

       UP

  • R55A PSY

       UP

  • R55H PSY

       UP

  • R55L PSY

       UP

  • R55S PSY

       UP

  • R55W PSY

       UP

  • R61A PSY

       UP

  • R61H PSY

       UP

  • R61L PSY

       UP

  • R61S PSY

       UP

  • R61W PSY

       UP



Rate this page:

(0 users)Average rating

Document information


More support for:

Tivoli Storage Manager

Software version:

61A

Reference #:

IC66116

Modified date:

2010-03-15

Translate my page

Machine Translation

Content navigation