How to delete all Snapshots?

Question

Hi, Our system is complaining 'Snapshot creation on storage resource 2018-08-09_02.00.00 failed because the maximum number of snapshots have been created for this storage resource.' I noticed that the 'default protection' was used. It is way too many snapshots/overkill IMHO. I want to delete all the snapshots and start fresh with a policy of 7 days retention. How can I delete all the snapshots in one shot? Currently I have to delete one by one in the GUI. P.S. I have redundancy, backups and archives so I am not worried about deleting all the snapshots and starting fresh. Thanks Jeff

CENX · Answer

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kelleg · Answer

You didn't mention what type of array you're using so I'll assume its a VNX. On VNX, if you have a lot of snaps (and there is a limit for each model), deleting each snap takes little time. It's the last snap for each LUN that can take longer and can impact performance. As far as I know, there is no command to delete all the snaps at once.

This lists some of the maximums:

https://support.emc.com/docu48739_VNX_Snapshots_and_SnapCLI_for_VNX_OE_for_Block_5.33.000.5.015_Release_Notes_.pdf?language=en_US

This gives a more detailed look at Snaps

https://support.emc.com/docu48702_White_Paper:_VNX_Snapshots.pdf?language=en_US

glen

VNX

How to delete all Snapshots?

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