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I was backuping data on an 1Gb hard drive with DPM 2010. This disk died but I replace it with another 1Gb hard drive.

But I don't find how to recreate data structure on this new drive from previous protection group.

Protection group were red. I delete the disk in "administration > disks", now protection group are green but they don't save data and I can't see any menu to change the disk destination.

how to do ?


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up vote 4 down vote accepted

The previous answer is nice when you have previous disk which is working and want to migrate on another and copy previous replica.

In the case you want to replace a failed hard disk I found a command to do that.

First, add the new disk to storage pool in administration tab and then remove the failed drive.

then start powershell dpm command and type :

DPMSYNC -Reallocatereplica

This will recreate replica on the new drive of the storage pool.

hope it help some.

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After this command all replicas will be mark as "manual replica creation pending". To correct this just relaunch a consistency check on all replicas. – Dragouf May 23 '11 at 7:50

You will need to use the MigrateDatasourceDataFromDPM.ps1 PowerShell command in the DPM shell. More details on the command are available on Techent -

The command would be similar to this:

$disk = Get-DPMDisk –DPMServerName DPMTestServer 
./MigrateDatasourceDataFromDPM.ps1 –DPMServerName DPMTestServer –Source $disk[0] –Destination $disk[1]

However, I would first run get-dpmdisk -dpmservername myserver to determine which disks you are going to use. For example, first disk listed would be $disk[0] in the above command, and the third disk would be $disk[2].

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I believe this will work:

  1. Under Management -> Disks tab, add the new disk.
  2. Under Protection -> Right click the protection group, Modify Disk Allocation

DPM Disk(s) should be redundant; DPM's D2D backup wasn't designed for very small environments where you have a single non-redundant disk.

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I tried that but I can't do nothing in this window. Even if the new disk is present under "Management -> Disks tab". here is the screen shot of the "Modify Disk Allocation" window (the ui is in french) : – Dragouf Jun 8 '10 at 14:29

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