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SnapMirror relationships report a Preparing relationship status

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Category:
snapmirror
Specialty:
dp
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Applies to

  • ONTAP 9
  • SnapMirror
  • SnapVault
  • Unified Replication
  • Storage Virtual Machine Disaster Recovery (SVMDR)

Issue

  • snapmirror show  or OnCommand System Manager reports a SnapMirror Relationship Status of  "Preparing" for a significant amount of time.

ClusterA::> snapmirror show
                                                                         Progress
Source             Destination  Mirror  Relationship   Total             Last
Path         Type  Path         State   Status         Progress  Healthy Updated
-----------  ----  ------------ ------- -------------- --------- ------- --------
svmSource:volSource
             XDP   svmDest:volDest
                                Snapmirrored
                                        Preparing       98.17GB  true    01/01 12:00:00

  • Both volume and SVM replication relationships can experience long periods of Preparing status after snapmirror resync
  • The Preparing operation may run longer, and appear to transfer more data, than a typical update operation
  • The delay in completing the Preparing operation will cause snapmirror resync of a volume snapmirror, or SVMDR, to appear slow

 

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