SnapMirror relationships report a Preparing relationship status
Applies to
- ONTAP 9
- SnapMirror
- SnapVault
- Unified Replication
- Storage Virtual Machine Disaster Recovery (SVMDR)
Issue
- A SnapMirror or SVMDR reverse resync takes much longer than expected, or seems very slow
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.