IT32563: IBM SPECTRUM PROTECT FOR VIRTUAL ENVIRONMENTS LINUX MOUNT NEEDS TO DETECT AND REPORT DUPLICATED UUID OR LVG NAME

Download Information: Version 7.1.8.x Data Protection for VMware

APAR status

• Closed as program error.

Error description

• Error Description:
  
   Duplicate Filesystem or Logical Volume Group names can cause
  mount of Linux Vm  to fail. You may see the following error in
  the Restore or  Vmware plugin UI:
  
  An error occurred while retrieving directory Information
  
  This issue can occur if the Linux mount proxy vm and Linux vm
  being mounted are cloned from the same virtual machine.
  
  Spectrum Protect for Virtual Environment Linux Mount Proxy
  serviceability  should  be improved to detect and report
  possible environmental problems caused by duplicated
  Filesystem  UUID  or LVG name.
  
  
  Spectrum Protect Versions: 81L and 71L
  
  Customer/L2 Diagnostics (If Applicable)
  
  Initial Impact: Medium
  
  Additional Keywords:  File Level Restore FLR Mount Linux UUID
                        LVG Logical Volume Group Name
  

Local fix

• Local Fix:
  
  Do not use same Linux Virtual guest template for the Linux Mount
   Proxy  and any Linux Vm that will be mounted
  
  Create new Linux mount Proxy VM that has unique Filesystem
  UUID  and Logical Volume Group Names.
  
  Change Filesystem UUID and  Logical Volume Group Names
  on  Linux Mount proxy to be unique in your environment
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Data Protection for VMware version 7.1 and 8.1 running on    *
  * Linux x86 platforms.                                         *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See ERROR DESCRIPTION                                        *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * Apply fixing level when available. This issue is projected   *
  * to be fixed in the Data Protection for VMware Mount Proxy    *
  * version 7.1.8.10 and 8.1.11 on Linux x86 and Windows_x64     *
  * platform.                                                    *
  * Note 1: This is subject to change at the discretion of IBM.  *
  ****************************************************************
  

Problem conclusion

• Mount operation can fail in case the LVM volume being processed
  has UUID collision with the mount proxy system.
  Currently, the problem can only be identified with Spectrum
  Protect service tracing on Linux mount proxy.
  The fix improves serviceability by adding following warning
  message to UI console and to mount proxy?s dsmerror.log.
  ANS3188W A duplicate UUID exists for LVM device ?<varname
  id=?arg1?>new_device_name</varname>?.
  The device cannot be mounted. As a result, files from this
  device will not be restored.
  

Temporary fix

Comments

APAR Information

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

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

Modules/Macros

• dsmcad
  

Fix information

• Fixed component name

  TSM FOR VE DP V

• Fixed component ID

  5725TVEVM

Applicable component levels

• R81L PSY

     UP

• R81W PSY

     UP

• R71L PSY

     UP

• R71W PSY

     UP