6 Replies Latest reply: Jan 21, 2014 8:52 AM by DRUMDUDESAN RSS

Deduplication of a SnapVault destination

richardjj
Currently Being Moderated

I wonder if anyone can help?  I've been doing a bit of reading up on the potential for space savings if I switch on deduplication on a SnapVault target.

 

The source volume is question is mainly Microsft Office type documents and would therefore benefit greatly from SIS.  Actually, we do dedupe the source volume but as I understand it, any benefit is lost in the snapvaulting process.

 

Most of the advise recommends that SIS is enable prior to the first snapshot being taken.  Unfortunately we've missed the boat on this and the peculiar nature of this volume means we retains snapvault snapshots up to one year old.

 

Can anyone confirm that:

a) We can retrospecitively enable SIS on the SnapVault destination.

b) How long will it be before we start to see a benefit (I suspect we won't see anything until the older snapshots begin to expire).

c) How much free space am I likely to need to perform this?  Am I likely to see much growth in the volume during the SIS START process?  The snapvault target volume is 3TB in size with 2.5TB in use (about 1.5TB is current data and 1TB is SV snapshots.)

 

Help appreciated!

Richard

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