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Dell SC with a single tier
We are running an SC with a single tier of storage.
Is it required to apply a snapshot profile to an SC with a single tier of disks? I understand snapshots play a role in data progression, however in this case there is a single tier of disks.
Can I remove the volume from all snapshot profile associations?
Is there any risk to data in doing so?
After removing the snapshot profile from a volume, I plan to expire all associated snapshots. Any issue with this?
Thanks
Origin3k
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October 31st, 2022 09:00
75% of all my deployments are Single Tier ones..... Compellents with "SSD Only" but not called a All Flash Array.
There is no "need" to use a Snapshot profile but.. the snapshot we use is at first part of the Data Protection strategy. So primary reason is security.... the second one is that a snapshot will trigger the Data Progression on demand. Even when not licensed for DataProgression (because of only having one Tier) the system use a hidden one and please keep in mind that there RAID conversion from RAID10 -> RAID5 for example. If not it will kicked in on 07:00pm.
Regards,
Joerg
delljimmy
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October 31st, 2022 09:00
Thanks Joerg, much appreciated.
Origin3k
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October 31st, 2022 09:00
There is no risk by removing the Snapshot profile. Yes it will move Data within the TIER without a Snapshot profile.
Regards,
Joerg
delljimmy
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October 31st, 2022 09:00
Thanks for the reply Origin3k.
So if I understand correctly, if I remove the snapshot profile from a volume, there is no data risk.
Also, if I understand correctly, in regards to volumes, with a single tier and no snapshot profile, the Compellent will use the hidden snapshot with Data Progression to move data between different RAID levels, 10 -> 5 within that single tier.
Thanks again
Origin3k
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October 31st, 2022 12:00
As an additional information.. when the SCv20x0 (aka Maverik) comes to the market the Snapshot license comes as a optional feature. It was not part of the base system which makes it clear that the Snaphot feature isnt needed (but highly recommended).