my personal blog about systemcenter

DPM Scale-Out Protection for Hyper-V

 

One of the new features in service pack 1 for Data Protection Manager 2012 is the ability to scale out the protection of Hyper-V Clusters

Before SP1 there was a one to one relationship between a Hyper-V cluster and a DPM server , this had a impact of scale so the limiting factor in a Hyper-V cluster was the back engine.

There are a few limitations for this feature

It needs to be a fresh DPM install no upgraded

There is no support for DPM chaining

http://technet.microsoft.com/en-us/library/jj656645.aspx

 

On the first install DPM server we push the agents to the Hyper-V hosts

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And then on each of the Hyper-V Nodes

 

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setdpmserver –add –dpmservername dpm02

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On the next DPM server go to Agents – Install

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Attach Agent Computer on trusted domain

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Select the hyper-v nodes

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And Attach them to the second DPM server

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And we can now on both DPM servers attach VM’s for protection , note that there is no logic preventing your from double protecting a VM so make sure that the VM is only protected from one DPM server

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Error 3184: DPM could not run the backup/recovery job for the data source because it is owned by a different DPM server.
Data source: \Backup Using Child Partition Snapshot\AZ01
Owner DPM Server: DPM02.internal.systemcenterdemo.dk.

So adding the same VM to mutiple DPM servers wont work , so adding VM’s to the DPM server should be automated to prevent fault

And after adding a DPM server more we now

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have the same Hyper-V cluster protected with 3 DPM server , scale limit is 800ish VM pr DPM server but we are likely to hit the storage limit before that so scale-out is your friend.

 
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