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DLO 7.6 - Deduplication

InsentraCameron
Level 4
Partner Accredited Certified

Hello,

Does deduplication occur per user or does it occur across all users?

Cheers,

Cameron

1 ACCEPTED SOLUTION

Accepted Solutions

VJware
Level 6
Employee Accredited Certified

It occurs across storage for all users.

View solution in original post

3 REPLIES 3

VJware
Level 6
Employee Accredited Certified

It occurs across storage for all users.

InsentraCameron
Level 4
Partner Accredited Certified

Hi VJ,

Are there any white papers that explain how this works?

 

VJware
Level 6
Employee Accredited Certified

Afaik, there isn't a public whitepaper detailing the DeDupe process, however in a nutshell, this is the process -

When a backup is DeDupe-enabled, the client initializes the Dedupe Engine which works in tandem with the DeDupe DB (for checking, comparing hash values etc) and when a new file is backed up the first time, it breaks the file into chunks which are stored into the DeDupe storage location. Then reference pointers (metadata) are stored in the NUDF. During the next backup, when the file undergoes changes, the "delta" (incremental) portion of the file gets stored in the NUDF and the reference pointers (metadata) are updated.