IC87179: COPY POOL VOLUME(S) CAN BE MOUNTED DURING LAN-FREE RESTORE WHEN THE PRIMARY VOLUME(S) HAS NO LAN-FREE PATH.

APAR status

• Closed as documentation error.

Error description

• In a lan-free environment, the following can occur, when there
  is required data in a pool
  that does not have a lan-free path;
  
  1.   A client asks for a file to be restored.  Since this goes
  through the storage agent the first request will ignore disk
  storage pool volumes.
  2.   If the file is available through a lan-free path we will
  restore it from there, hence copy pool volume mount.
  3.   If the file is not available through a lan-free path then
  the data will be proxied over the lan from the server through
  the storage agent to the client.
  
  
  
  
  Tivoli Storage Manager Versions Affected:
  Tivoli Storage Manager server  5.5, 6.1, 6.2 and 6.3 on all
  platforms
  
  Initial Impact:
  low
  
  Additional Keywords:
  TSM zz61 zz62 zz63 mount copypool primary pool stgpool restore
  CTL
  

Local fix

• Use a copy pool that has no lan-free path
  

Problem summary

• ****************************************************************
  * USERS AFFECTED: All Tivoli Storage Manager server users.     *
  ****************************************************************
  * PROBLEM DESCRIPTION: See error description.                  *
  ****************************************************************
  * RECOMMENDATION:                                              *
  ****************************************************************
  *
  

Problem conclusion

• In the "Tivoli Storage Manager Administrator's Guide," in the
  section "Optimizing restore operations for clients," the
  subsection "Environment considerations" will be updated. The
  following note will be added:
  
  "Restriction: Restore operations that use storage agents in
  LAN-free configurations might restore files from a copy
  storage pool even though the data might be retrievable from a
  primary storage pool. This might happen if the restore request
  is for a specific file, or the restore request is not
  utilizing the no-query method, and the primary copy of the
  file is stored in a storage pool that is not accessible
  through a LAN-free path. This can also impact non-restore
  situations such as Tivoli Storage Manager for VE backup
  operations. In a Tivoli Storage Manager for VE environment,
  the preferred storage method for virtual machine control files
  is disk, such that a mount is not needed to restore the file
  during the incremental backup process. These virtual machine
  control files not only need to be placed on disk, but they
  should not be backed up to a copy storage pool that is
  available through a LAN-free path. If they are, a tape mount
  will be used to restore the files during a LAN-free
  incremental backup from a Tivoli Storage Manager for VE
  client."
  
  
  Affected platforms:  AIX, HP-UX, Solaris, Linux, and Windows.
  

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:

Fix information

Applicable component levels