If you need to temporarily stop pruning operations or unmount operations, then you can disable the automatic cleanup of snapshots in the storage array.
Procedure
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From the navigation pane, click Manage > Infrastructure.
The Infrastructure page appears.
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Click Arrays.
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On the Arrays page, in the Name column, click the storage array.
The Overview page of the array appears.
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In the Configuration tab, under Activity tile, move the Disable automatic cleanup (Pruning and unmount snapshots) toggle key to the right.