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IT37850: "ANS9427E" AND "ANS9447E" DURING VMWARE VM GUEST RESTORE

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APAR status

  • Closed as change to accomodate OEM Vendor's code.

Error description

  • When restoring a VM guest using IBM Spectrum Protect for Virtual
    Environments - Data protection for VMware, the restore attempt
    fails with the following messages:
    
    ANS9427E The virtual machine 'vm_name'  disk 'Hard Disk 1' could
    not be opened because none of the allowed transports
    ('transport_mode') is available.
    ANS0361I DIAG: ..\..\common\vm\vmcommonrestvddk.cpp(10672):
    vmVMwareRestoreDiskDispatcher(): one or more disk restore
    session threads of vmname='vm_name' failed: highest rc=7336 .
    ANS9447E The virtual machine 'vm_name'  disk could not be opened
    because none of the allowed transports is available.
    
    The cause is due to a limitation of the VMware Virtual Disk
    Development Kit (VDDK) 7.0 and higher on windows base systems:
    https://vdc-download.vmware.com/vmwb-repository/dcr-public/ee65
    cc8c-0701-4b39-a8d3-7025818a02ea/dfaaa64d-f1fc-4722-9b21-cf10fb
    030eeb/VDDK-700-ReleaseNotes.html
    
    "New: I/O threads possibly not initialized on Windows.
    The diskLibPlugin module is dynamically loaded into vixDiskLib
    when programs call VixDiskLib_InitEx. On Windows, dynamic
    loading may result in the static thread for local storage not
    getting initialized. Some operations, such as fetch block map,
    can fail if I/O threads are created before calling
    VixDiskLib_InitEx. The workaround is to wait for completion of
    VixDiskLib_InitEx before creating any I/O threads. "
    
    VDDK version 7.0 is used with IBM Spectrum Protect for Virtual
    Environments - Data Protection for VMware starting version
    8.1.10.
    
    
    IBM Spectrum Protect Versions Affected:
    IBM Spectrum Protect for Virtual Environments - Data Protection
    for VMware version 8.1.10 and later on Windows
    
    
    Additional Keywords: TS004783631, ANS9427E, ANS9447E
    

Local fix

  • Alternate possible restore methods depending on the required
    restore needs:
    - Use Instant Access/Instant Restore
    or
    - Use file-level restore
    or
    - As only Windows systems are affected, when possible, use a IBM
    Spectrum Protect for Virtual Environments - Data protection for
    VMware data mover running on Linux
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * IBM Spectrum Protect for Virtual Environments Data           *
    * Protection for VMware versions 8.1.10, 8.1.11 and 8.1.12     *
    * running on all Microsoft Windows x64 platforms.              *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * See ERROR DESCRIPTION                                        *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * This issue is projected to be fixed in the Data Protection   *
    * for VMware Data Mover version 8.1.13 on Windows x64 and      *
    * Linux x86 platforms.                                         *
    * Note 1: This is subject to change at the discretion of IBM.  *
    ****************************************************************
    

Problem conclusion

  • The code has been updated to initialize VDDK libs before
    starting IO threads.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT37850

  • Reported component name

    TSM FOR VE DP V

  • Reported component ID

    5725TVEVM

  • Reported release

    81W

  • Status

    CLOSED OEM

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2021-08-02

  • Closed date

    2021-09-15

  • Last modified date

    2021-09-15

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

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

Modules/Macros

  • dsmagent
    

Fix information

Applicable component levels

[{"Line of Business":{"code":"LOB26","label":"Storage"},"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SS8TDQ","label":"Tivoli Storage Manager for Virtual Environments"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"81W"}]

Document Information

Modified date:
16 September 2021