Symptoms
Data corruption occurs on a vVol which has associated snapshots or clones following a vMotion from Unity to PowerStore, or from Unity to another Unity array.
Cause
Unity cannot vMotion a vVol which has associated snapshots or clones if the destination is on a different storage system. The
Dell EMC Unity: Virtualization Integration document also details this restriction. In this migration scenario, the host manages the migration and does not properly manage copying the vVol snapshot/clone deltas, which will result in data corruption.
NOTE: This only affects vVols. This does not affect VMFS.
Resolution
Do not use vMotion to migrate a vVol which has associated snaps or clones if the destination is a different storage system.
If this has already occurred, please contact Dell Technical Support or your Authorized Service Provider and reference this knowledge base article.
Affected Products
Dell EMC Unity
Products
VMware