Global deduplication - understanding

Question

Hello,

Could you help me with understanding of global deduplication - how it works.

We are going to implement Avamar in our enterprise with the following classic scheme: small remote offices (Avamar remote agent), large remote offices (Avamar appliance), HQ office (2 data grid with configured replication).

Small offices will be configured to store data on data grids directly. It's clear for me that in case of disaster we need to recover data locally on site with data grids location and send data (via WAN or somehow else) to remote site.

But what happens in case of disaster of large site (imagin that Avamar applience is working OK)? Will we have all necessary data on the local Avamar appliance or deduplicated data existed on another sites/data grids in time of backup before should be sent to this appliance for recovery?

Thanks!

Avamar Exorcist · Accepted Answer

Hi Michaylo,

As it is currently implemented 'global deduplication' refers to deduplication of data across all clients on a single Avamar system. The larger the Avamar system, the more unique chunks of data it will be able to store and the greater the likelihood that clients backing up new data will achieve a higher rate of deduplication.

If there are multiple Avamar systems, as you describe, each of those systems will store their own local copies of those unique chunks.

If a customer has several small Avamar systems which back up clients in their local office each of those smaller Avamar systems will contain all the data they need to restore the local clients which are backing data up to it.

If multiple local, Avamar systems replicate their data to a central larger Avamar system, then we will effectively have a duplicate copy of each unique chunk of data on those local Avamar systems. That duplicate information could be used were one of those local Avamar system to fail

I hope this answers your question..

Michaylo_rus · Answer

Hi Nicholas,Thanks a lot for very useful information!!! Now it's clear for me.

Avamar

Global deduplication - understanding

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