IBM Support

IC77435: LINUX PASSTHRU DRIVE FAILS TO OPERATE DEVICES WITH A MINOR NUMBER GREATER THAN 256

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • The Linux passthru driver is not able to open
    a device with a minor number higher than 256. This will present
    as a
    mount failure.
    
    The passthru driver trace will show:
    10:05:59.614 [22][lpdd_open.c][149][lpdd_open]: lpdd_open: minor
    number exceeds the limit, minor = 692
    Server or Storage agent lpdd trace will show:
    xxx[yyy][pspvr.c][3039][PvrPsOpenDevice]pdd_open with handle 4
    devName /dev/tsmscsi/mt0 lpddrc 22 rc 30 nonDelayFlag 0
    Tivoli Storage Manager Versions Affected: All linux versions
    Initial Impact: Medium
    Additional Keywords:
    

Local fix

  • Put tape FC cables to the low address of the adapter so all of
    tape devices will get smaller minor number and put the disk FC
    cables to
    the higher addresses.
    Or, change the zoning to limit the number of devices on the san.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All Tivoli Storage Managers server users     *
    *                 of non-IBM tape devices.                     *
    ****************************************************************
    * PROBLEM DESCRIPTION: See ERROR DESCRIPTION.                  *
    ****************************************************************
    * RECOMMENDATION: Apply fixing level when available. This      *
    *                 problem is currently projected to be fixed   *
    *                 in levels 5.5.6, and 6.2.3. Note             *
    *                 that this is subject to change at the        *
    *                 discretion of IBM.                           *
    ****************************************************************
    *
    

Problem conclusion

  • This problem was fixed.
    
    Affected platforms:  Linux
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC77435

  • Reported component name

    TSM SERVER

  • Reported component ID

    5698ISMSV

  • Reported release

    55L

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2011-07-08

  • Closed date

    2011-07-11

  • Last modified date

    2013-08-22

  • 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

  • R55L PSY

       UP

  • R61L PSY

       UP

  • R62L PSY

       UP

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Document Information

Modified date:
22 August 2013