Optimizations in protecting SQL databases with high churn by DPM

This article discusses two specific problems that you may encounter while protecting high churn databases using DPM. Both of these concern the amount of disk space used by the DPM log files in certain scenarios and how to you can mitigate the issues that can arise as a result. Issue 1: Incremental backup job triggered… Read more

Protect, Unprotect, Protect, Unprotect – Understanding how DPM 2010 retention works

UPDATE 11/20/2013: The script below has been updated to work with all current versions of DPM 2012. ===== With special thanks to Fahd Kamal for the backgrounder content. Imagine that you are experimenting with DPM 2010.  You protect some data, and then you remove that protection group.  Then, showing DPM to one of your friends,… Read more

Take caution when reintroducing old storage pool disk space

Assume we have some sort of scenario where protection is continued on new storage pool and are left with old storage pool that contains data but is no longer relevant. You could develop the idea to re-use old storage pool disk space to enlarge the new storage pool and may even be part of a… Read more

Space needed to migrate a disk

The MigrateDatasourceDataFromDPM script can have many formats one of which is to migrate a source disk to a target disk or array of disks. How much space do you need to migrate? You need at least as much as the source disk size of course but what if 1 or more volumes span to another… Read more

How much can I shrink recovery point volumes with DPM2010

The script shown below finds out how much recovery points volumes could be shrunk on DPM2010. One word of caution though: use the shrink feature with common sense and not as a regular remedy! Repeated small shrinks cause free space fragmentation and increases the number of extents. The shrink option can be useful if accidental… Read more

DPM 2010: Helping you meet SLAs with less effort

  Better backups with DPM – the story so far… DPM has consistently aimed at making your backups more reliable. The transition from tape to disk as a medium for storing backups provided the first impetus to improved reliability of backups, and was delivered with DPM 2006, our first release. It also brought about novel… Read more

How to create and delete recovery points for DPM via PowerShell

Knowing how to manipulate DPM by way of PowerShell can come in handy in many situations. For example, I had a case to where I was troubleshooting the DPM console that was crashing and there was a concern as to whether or not recovery points where being made for specific protection groups. Using the PowerShell… Read more

Troubleshooting SharePoint recoveries for DPM

There are some common issues we run into when troubleshooting SharePoint recoveries and the video below covers how to diagnose common SharePoint DPM recoveries using the various logs that are available. The two areas of focus are insufficient space and incorrect templates related issues. The video covers using the MSDPMcurr.errlog, Traclogs, monitoring logs, and the… Read more