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Compression & De-Dupe on Store

Created: 08 Sep 2011 • Updated: 02 Nov 2011 | 6 comments
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Hi There All,

Thank you for looking,

I have recently crerated a new vault store and started archiving lots of data from a file server.

I had 2 partitions created in the vault Store at 500GB each, I configured rollover at 10% free space and it behaved as i expected, The first partition reached 90% capacity and it closed the partition and rolled onto the next partition.

I have just realised that Compression and de-dupe were not selected on either partitions.

So I have just selected them hoping that it will reduce the size of the store, Is there anything else that I should do to help this along?

I'm using EV8 on W2k


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Nick White's picture

Dedupe will only happen for items that are archived after you changed the setting. Enterprise Vault does not go back over previously archived items and single-instance them so your existing data will remain as-is unless you export, delete (from the archive) and rearchive it, though this will impact expiry as expiry will be based on the new archived/modified date and not the date from the original archive run

GrahamHyland's picture


Could you tell me how to do an export?


Nick White's picture

You can export from the Vault Admin Console by right-clicking on the archive container and selecting Export from the list. Your options from there are to export to PST files or back to the original mailbox

GrahamHyland's picture

Hi Again,

I'm sorry but I forgot to mention that this is FSA not Exchange. I cant seem to find an export option


TonySterling's picture

For FSA you would use FSAUtility.  FSAUtility is documented in the utilities guide.

Also you can start with this technote:

Article URL

JesusWept3's picture

hang on a second, you do actually have a device that supports dedupe and compression right?
Because only specific devices will allow that, if you have a regular NTFS drive, it will not perform any of this.

Natively EV will perform SIS and compression (via zlib), but if you have a centera it will perform its own SIS/Dedupe etc