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IT20114: ANS2411E RC = 6534 AND ANS4907E ON INSTANT RESTORE OF GUESTS WITH PRDM DISKS

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APAR status

  • Closed as program error.

Error description

  • In case a VMware guest has pRDM disks, if the total disk size
    of the guest is bigger than the target datastore free space for
    an Instant Restore operation, the process will fail with the
    following errors in the dsmerror.log of the mount proxy node :
    <timestamp> ANS2411E Instant Restore/Access of virtual machine
    '<vmname>' failed with rc = 6534
    <timestamp> ANS4907E Instant restore of VMware Virtual Machine
    '<vmname>' failed. target node name='<target node>', data mover
    node name='<mount proxy node>'
    
    IBM Spectrum Protect Versions Affected:
    All supported versions of IBM Spectrum Protect for Virtual
    Environments - Data Protection for VMware on Linux and Windows
    
    Customer/L2 Diagnostics:
    A mount proxy node client service,VM trace will display the
    reason :
    
    <timestamp> [PID] [TID] :
    ..\..\common\vm\visdkdevices.cpp(8765): =========> Entering
    visdkGetVMDiskCapacity()
    ...
    <timestamp> [PID] [TID] :
    ..\..\common\vm\visdkdevices.cpp(8794): <========= Exiting
    visdkGetVMDiskCapacity(), VM Disk size is <total calculated
    guest disk size in bytes>
    <timestamp> [PID] [TID] :
    ..\..\common\vm\vmFullVMInstantRestore.cpp(1990):
    FullVMInstantRestore::getDatastoreInfoFromESX: Error: Datastore
    '<target datastore name>' has not enough free space available
    for instant restore of VM '<vmname>'
    <timestamp> [PID] [TID] :
    ..\..\common\vm\vmFullVMInstantRestore.cpp(1835): EXIT  <=====
    FullVMInstantRestore::getDatastoreInfoFromESX, rc = 6534
    
    Initial Impact: Low
    
    Additional Keywords: tsm sp spectrum protect tdp4ve tsm4ve IR
    restore
    

Local fix

  • Add, only for the problematic restore action, in the
    configuration file of the mount proxy node used for the instant
    restore :
    testflag VMINSTREST_DISABLE_VMSIZE_CHECK
    then recycle the corresponding client acceptor service before
    retrying the Instant Restore.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * IBM Spectrum Protect for Virtual Environments Data           *
    * Protection for VMware versions 7.1 and  8.1.0                *
    * running on all Microsoft Windows x64 and Linux x86 platforms.*
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See ERROR DESCRIPTION                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * This issue is projected to be fixed in the Data Protection   *
    * for VMware Data Mover version 7.1.8 on Windows x64 and Linux *
    * x86 platforms.                                               *
    * Note 1: This is subject to change at the discretion of IBM.  *
    ****************************************************************
    

Problem conclusion

  • PRDM disks are now skipped when calculating vm size for instant
    restore.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT20114

  • Reported component name

    TSM CLIENT

  • Reported component ID

    5698ISMCL

  • Reported release

    71W

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-04-07

  • Closed date

    2017-04-07

  • Last modified date

    2018-02-06

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

    IT18049

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

Fix information

  • Fixed component name

    TSM CLIENT

  • Fixed component ID

    5698ISMCL

Applicable component levels

  • R71L PSY

       UP

  • R71W PSY

       UP

[{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGSG7","label":"Tivoli Storage Manager"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"71W","Line of Business":{"code":"LOB26","label":"Storage"}}]

Document Information

Modified date:
07 January 2022