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Veeam doesn't clean up temporary datastore in vSphere after restore from NetApp storage snapshot

KB ID: 1939
Product: Veeam Backup & Replication
Version: 8.x
Published: 2014-10-23
Last Modified: 2020-08-13

Challenge

After completing one of the restore options available for NetApp storage snapshot, you may notice that the temporary datastore under the name "snap-<id>-<original datastore name>" is still mounted on the ESXi hosts with inactive status. See the screenshot below for an example:
User-added image

After a manual rescan of the storage adapter on each host, the temporary datastore is removed.

Cause

This is a known issue. Veeam assigns a clone of the LUN to the entire initiator group instead of a dedicated host selected in the Restore wizard. However, during unmount Veeam requests a rescan of the storage adapter only on the host which was selected in the Restore wizard.

Solution

You may create dedicated initiator groups for each ESXi host and explicitly add the initiator name of the ESXi host. Make sure to define the same OS type for those groups as the main group, otherwise you won't be able to add an initiator name (the group will be created empty).

Before:

User-added image

After:
User-added image

More information

This issue will be addressed in one of the future updates for v8
KB ID: 1939
Product: Veeam Backup & Replication
Version: 8.x
Published: 2014-10-23
Last Modified: 2020-08-13

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