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Summary

Condense Job fails while trying to delete the Snapshots with Status equal to Busy,Cloned.

 

Symptoms

The following errors display in the Condense Job Report:

X.X.X.X 11/12/2012 11:18:41 am SNBSVH_557J Deleting snapshot (/vol/b_DB08/.snapshot/SSSV_b_DB08.1348021980)
X.X.X.X 11/12/2012 11:18:41 am SNBNCX6025J NDMP server entry: Type(NDMP_LOG_ERROR), ID(1), Text(Snapshot in use by dump, SnapMirror, a CIFS share, or RAID mirroring. )
X.X.X.X 11/12/2012 11:18:41 am SNBSVH_525E Could not delete snapshot (/vol/b_DB08/.snapshot/SSSV_b_DB08.1348021980) on volume(/vol/b_DB08) of
node(FAS2240A). Reason(NDMPSessionException(0, deleteSnap exception: <EXCEPTION CATEGORY="BEXEXCEPTION"><CODE>501</CODE></EXCEPTION>))

 

Resolution

Confirm the status of reported Snapshots from the Netapp System Manager GUI. They appear as "Busy, Cloned".

When an IA map is performed, a clone volume is created along with a LUN, which is associated to a snapshot. Condense could not delete these snapshot because it is still in use by the IA operation. Then find out the associated server and IA Mappings for these snapshots to unmap them so that DPX can condense them successfully. Follow the below steps to determine the server holding the IA mapping.

To verify IA is still in use:

  1. Login to NetApp System Manager.
     
  2. Confirm there is a clone volume and LUN associated to this cloned volume (Expand Storage > LUNs > LUN Management).
     
  3. Select the associated LUN and click the Initiators Group tab. Make a note of the associated Initiator group.
     
  4. Click the Initiator Groups tab. From the list of available groups, select the desired Group to see the associated Initiators as shown in the below screen:



     
  5. You should see after .microsoft:<Server Name>. Make a note of the server name. In this case, it is bex341.
     
  6. In the BEX/NSB management console, navigate to Restore > Advanced Recovery > Expand under [SOURCES} and look for server bex341.
     
  7. Right-click on the servername and select Show Mapped Drives.
     
  8. You should see a drive that is IA mapped. Select from the Drive list (e.g., X: ) and click Unmap.
     
  9. After it has been unmapped successfully, confirm that the cloned volume and LUN are removed from the NetApp System Manager.
     
  10. Run Condense within the NSB management console to successfully complete.