IBM Support

IT26604: PROXY NOT HANDLING THE WAITING TASKS IN THE QUEUE EFFECTIVELY.

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APAR status

  • Closed as program error.

Error description

  • The IBM Spectrum Protect Plus proxy server does not handle
    waiting tasks on the queue in an efficient manner. The key
      factor is the number of SLA's and how many virtual machines
      are being backed up.
    
    Spectrum Protect Plus Versions Affected:
      IBM Spectrum Protect Plus 10.1.1
    Customer/L2 Diagnostics (If Applicable)
      N/A
    
    Initial Impact:
      Medium
    Additional Keywords:
      37015,082,000 SPP PROXY LOAD
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * IBM Spectrum Protect Plus levels 10.1.1, 10.1.2.             *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See ERROR DESCRIPTION                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Apply fixing level when available. This problem is projected *
    * to be resolved in IBM Spectrum Protect Plus levels           *
    * 10.1.2.209, 10.1.3.                                          *
    *                                                              *
    * Note that this is subject to change at the discretion of IBM *
    ****************************************************************
    

Problem conclusion

  • In an environment where a large number of VMs are being backed
    up concurrently, a proxy can receive multiple simultaneous
    requests from VMs to backup. A contributing factor in this
    is the number of SLAs that are running. This can lead to an
    overloaded proxy attempting to back up too many VMs.
    IBM Spectrum Protect Plus has been updated to improve its
    approach to load balancing across VADP proxies. All requests for
    proxies will be submitted to a centralized queue. The load
    balancing scheme will pull requests from the queue, sending it
    to available proxies. This will ensure that a proxy will only
    receive a single backup request at a time therefore minimizing
    the chances that a proxy becomes overloaded.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT26604

  • Reported component name

    SP PLUS

  • Reported component ID

    5737SPLUS

  • Reported release

    A11

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2018-10-12

  • Closed date

    2018-11-15

  • Last modified date

    2018-11-15

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

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

Modules/Macros

  • VADP
    

Fix information

  • Fixed component name

    SP PLUS

  • Fixed component ID

    5737SPLUS

Applicable component levels

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSNQFQ","label":"IBM Spectrum Protect Plus"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"A11","Line of Business":{"code":"LOB26","label":"Storage"}}]

Document Information

Modified date:
30 January 2024