Windows Server 2012 Deduplication Results In A Small Environment

Posted: November 15, 2012 in Exchange 2010

Working Hard In IT

There is a small environment that provides web presence and services. In total there a bout 20 production virtual machines. These are all backed up to a Transparent Failover File Share on a Windows Server 2012 cluster that is used to host all the infrastructure and management services.

The LUN/Volume for the backups is about 5.5 TB of storage is available. The folder layout is shown in the screenshot below. The backups are run “in guest” using native Windows Backup which has the WindowsImageBackup subfolder as target. Those backups are  archived to an “Archives” folder. That archive folder is the one that gets deduplicated, as the WindowsImageBackup folder is excluded.

image

This means that basically the most recent version is not deduplicated guaranteeing the fastest possible restore times at the cost of some disk space. All older (> 1 day) backup files are deduplicated. We achieve the following with this approach:

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