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Failed to delete volume clone error in vSphere

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snapcenter
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SNAPX
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Applies to

  • SnapCenter Plug-In for VMWare 5.0P3 (SCV)
  • Ontap 9.12.1P7

Issue

SCV can be leveraged to attach and then detach a disk from the SCV backups: when detaching a disk using SCV wizard, SCV unmounts the clone from a host and the admin VM: when that task is running, an error is regularly showing in vSphere client: the vpshere error is the same as the one we see in the detach scv job log, particularly the vmcontrol.log:


c.n.a.s.c.SnapManagerStorageServiceImpl  : [JobId:12345] Failed to delete volume clone 10.10.10.10:/vol/datastore1_v0000000000001: Failed to remove export policy. Object reference not set to an instance of an object.
c.n.a.m.AbstractMountStrategy : [JobId:12345] Exception while unmounting nfs datastore:Failed to delete volume clone 10.10.10.10:/vol/datastore1_v0000000000001: Failed to remove export policy. Object reference not set to an instance of an object.

The clone may actually even have been deleted successfully in Ontap, despite the error.
The Export Policy which SCV created for the attach task was not deleted from Ontap during the Detach task.

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