my personal blog about systemcenter

Windows Server 2012 Redirected IO vs Data Protection Manager 2012

One of the new features in Windows Server 2012 Clustering is the Direct I/O mode for snapshots and backup , this will ensure that the CSV volume wont go into redirected mode , so even without the use of hardware VSS , data protection manager can backup the Hyper-V guests directly off the cluster without the performance impact of the CSV going into redirected mode.

Ease of file backup with CSVs

CSV features in Windows Server 2012 that help achieve a seamless backup experience for both backup applications and backup requestors include the following:

  • Direct I/O mode for snapshot and backup operations

This post will cover the Direct I/O mode, this is just one of the new features that just work but is very very very helpful


Select the Hyper-V machine in the cluster that you want to protect


Create the protection group



And we can see the backup running


and our CSV volume is Online and not in redirected mode

Thank you Windows Server 2012 !


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