IT07908: LINUX MOUNT OF VMWARE SNAPSHOT TIMES OUT ON RHEL 6.6

TSM 7.1.2.x interim fix client downloads
IBM Spectrum Protectâ„¢ Client 7.1.3 Downloads and READMEs

APAR status

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

Error description

• During the mount of a Linux virtual machine snapshot,
  using the VMware plug-in, the mount process can time out
  on Redhat 6.6.
  Note: This problem has been witnessed on RHEL 6.5
  How to determine if you are seeing this problem:
  In the VE Web GUI, or Plug-in:
  In "recent tasks > progress history" you can see the statement
  "Mounting block devices. Please wait..." before "Unmount volumes
  and disconnecting targets.
  "Mounting block devices. Please wait..." before "Unmount volumes
  and disconnecting targets.
  .
  A SERVICE trace on the Linux client will show:
  1/27/2015 12:16:52.799 [006383] [3852678912] :
  vmFileLevelRestoreUtils.cpp( 265): ENTER =====> executeCommand
  01/27/2015 12:16:52.799 [006383] [3852678912] :
  vmFileLevelRestoreUtils.cpp( 285): executeCommand: Full command
  string: timeout 120 lvm pvs --noheadings
  01/27/2015 12:16:52.814 [006383] [3852678912] :
  vmFileLevelRestoreUtils.cpp( 303): executeCommand: Command
  Output:
  File descriptor 3 (/tmp/vm_lnx_mp.out) leaked on lvm invocation.
  Parent PID 6813: timeout
  File descriptor 4 (/tmp/vm_lnx_mp.out) leaked on lvm invocation.
  Parent PID 6813: timeout
    /dev/sda2  VolGroup lvm2 a--  49.51g    0
  The " executeCommand: Full command string: timeout 120 lvm pvs
  --noheadings" will repeat
  for 5 minutes before the mount process stops.
  Initial impact: Medium
  Platforms affected: Linux RHEL 6.6. 7.1.1 client
  Note: RHEL 7 is also affected by this apar.
  

Local fix

• In the Data Protection for VMware Plug-in (or web gui):
  - Start the mount in the TDP for VMware GUI
  - go to recent tasks
  - select the mount task and expand the process history
  - refresh until you can see the message "Mounting block devices.
  Please wait..."
  - then run the command "lvm pvscan" on the Linux MP as root.
  - return to the GUI and check whether the mount succeeded.
  

Problem summary

• ****************************************************************
  * USERS AFFECTED:                                              *
  * Tivoli Storage Manager for Virtual Environments component    *
  * Data Protection for VMware version 7.1.1, running on Red Hat *
  * Enterprise Linux 6.5 and 6.6.                                *
  ****************************************************************
  * PROBLEM DESCRIPTION:                                         *
  * See ERROR DESCRIPTION.                                       *
  ****************************************************************
  * RECOMMENDATION:                                              *
  * This issue is projected to be fixed in the Tivoli Storage    *
  * Manager Client on Linux x86 platforms 7.1.3                  *
  * Note 1: The Tivoli Storage Manager (TSM) Client is a         *
  * prerequisite to using the Data Protection for VMware.        *
  *              In Data Protection for VMware environments, the *
  * TSM Client is also known as the data mover.                  *
  * Note 2: This is subject to change at the discretion of IBM.  *
  ****************************************************************
  

Problem conclusion

• The problem was caused by RHEL 6.5 and RHEL 6.6 defects. A
  workaround was added to overcome the problem.
  

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

• dsmc
  

Fix information

Applicable component levels

• R71L PSY

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