Skip to content

DPM 2012 with Failover Cluster for Hyper-V


One of the new features that DPM brings the possibility of 2012 make up the VMs that are on a cluster storage by using CSV snapshot capabilities of the storage itself.

This is a major breakthrough for two reasons:

  1. The storage has a superior performance in the snapshot because it is native to and occurring in the level of the bits to be copied and not in the file system as happens with snapshots created by Windows VSS
  2. With the snapshot being held by storage, do not encounter Redirect Access in the cluster and not the CSV errors being accessed simultaneously as with parallel backups of different VMs. With the hardware snapshot for backup you can create jobs for VMs running paralell

However, in most arrays are not left to allocations, which will generate snapshots in the Event Viewer of the host on which the backup was made a mistake of lack of enough space to generate a snapshot.

In these cases the ideal would be to reformulate the space of allocating LUNs to snapshot sufficient space for the copy of the largest existing backups, since the snapshot is deleted by DPM after the copy. It is also necessary to allow the hosts to perform snapshots, as the image below shows an EqualLogic configuration:


On the other hand, if there is no free space to the snapshot but this is a feature that exists on the storage you are using, the option is to disable the snapshot service integration kit, as seen below in the HIT Kit of EqualLogic:


If you need more information, please visit the link

One Comment
  1. I’m extremely impressed together with your writing talents as well as with the format on your weblog. Is this a paid subject matter or did you customize it your self? Either way keep up the nice quality writing, it’s uncommon to look a nice blog like this one nowadays..

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

%d bloggers like this: