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02-23-2021 03:28 AM
02-23-2021 03:28 AM
NFS and De-Dup without catalyst
Hi,
We will be moving to a new backup solution that uses NFS as the underlying storage for backup stoarege. My understanding is you need Catalyst to get the full benefits of de-dup and compression?
If we present thust an NFS data store will we see any de-dup benefits at all?
Thanks in advance
Mark
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02-23-2021 09:58 AM - edited 02-23-2021 09:59 AM
02-23-2021 09:58 AM - edited 02-23-2021 09:59 AM
Re: NFS and De-Dup without catalyst
Catalyst only has benefits for specific backup clients. If you are not using backup software which explicitly supports Catalyst, there is no benefit. The benefit of Catalyst is that it does the dedup on the client machine, not on the StoreOnce, so there is less network traffic. It doesn't make the dedup more efficient on the StoreOnce. Catalyst also requires separate NAS shares. So if you mix Catalyst and non-Catalyst on the same StoreOnce, they do not share dedup information. We have regular NAS shares with 30 generations of tapes that have dedup ration of > 19. It works pretty well. As far as compression, I think it is best to turn off compression for better dedup performance. Maybe others have experience with this, but we have compression turned off.