DPM and deduplication on slower servers

If you are using Data Protection Manager with deduplication, you might have faced the infamous “disk missing” problem! (Mark Reynolds describes the problem and its solution on his blog: https://blogs.technet.microsoft.com/dpm/2011/12/13/troubleshooting-dpm-volumes-are-flagged-as-missing-and-volsnap-logs-event-id-86/) This error often occurs because the dedup process is very hungry for IO, and if the underlying storage can’t follow, the virtual DPM server will…

DPM and unwanted backup snapshots

As you probably know, Data Protection Manager 2012 R2 uses virtual machine snapshots to take a backup of a protected VM. Unfortunately, when things go wrong with the DPM server, the backup snapshots might be left behind and you cannot delete it using the GUI. In this case, you can remove this snapshot by using…