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Snapshot creation fails for volumes migrated to Cluster Mode via CFT

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ontap-9
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core
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Applies to

  • ONTAP 9
  • Volume(s) migrated using copy-free transition (CFT)

Issue

  • At some point after a CFT, snapshots can no longer be created on a volume, either automatically or manually:
Cluster01::> snapshot create -vserver svm1 -volume vol1 -snapshot test
Error: command failed: Failed to create snapshot "test" of volume "vol1" on Vserver "svm1". Reason: Snapshot
already exists.
  • A volume snapshot show command confirms the snapshot does not exist:
Cluster1::> volume snapshot show -vserver svm1 -volume vol1
                                                                 ---Blocks---
Vserver  Volume   Snapshot                                  Size Total% Used%
-------- -------- ------------------------------------- -------- ------ -----
svm1     vol1
                  weekly.2020-10-25_0015                   176KB     0%   39%
                  daily.2020-11-01_0010                    200KB     0%   42%
                  weekly.2020-11-01_0015                   176KB     0%   39%
                  daily.2020-11-02_0010                    200KB     0%   42%
                  hourly.2020-11-02_1705                   196KB     0%   41%
                  hourly.2020-11-02_1805                   176KB     0%   39%
                  hourly.2020-11-02_1905                   196KB     0%   41%
                  hourly.2020-11-02_2005                   176KB     0%   39%
                  hourly.2020-11-02_2105                   196KB     0%   41%
                  hourly.2020-11-02_2205                   172KB     0%   38%
10 entries were displayed.
  • Non-transitioned volumes can still create snapshots.
  • Please contact NetApp Technical Support and reference this article for further assistance.

 

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