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I like to draw attention to something that may not be well known and surprise some old ‘die hard’ DPM’ers. You probably are familiar with the ‘rule’ that all protected hosts within a cluster must be protected by the same DPM server! This is does not apply to Exchange 2010 and is formally documented here...

Lets say you create virtual machine protection and current conditions allow “ Backup Using Child Partition Snapshot\< VM>” or in short; ‘ online’ protection. Then you change the VM configuration and introduce one of the conditions that prohibit online protection (see below and  http://technet...

I like to draw attention to something that may not be well known and surprise some. You probably are familiar with the ‘rule’ that all protected hosts within a cluster must be protected by the same DPM server! This is does not apply to Exchange 2010 and is formally documented here: http://technet.microsoft...

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, you protect the data again, and later unprotect it. Later that same day, you...

Those with interest in modifying and creating DPM protection from CLI probably appreciate this otherwise there is little sense in reading further I guess. Those that seek to save and recreate protection configurations are up for a task that proved to be a daunting one, you may want to look into a twin...

There are people that understand and monitor what’s happening in their environment, I’m sure you are one of those and may observe strange looking statistics. On the 10.000ft level and a per job basis, not all data that gets transferred is also stored!? Are we losing information? No, of course not! DPM...

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...

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...

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...

With DPM 2007 Feature Pack (KB949779), we have added support for media co-location. With this feature, you can achieve better tape utilization by co-locating data from multiple protection groups with similar retention range. This feature is disabled by default. You can use following PowerShell commands...

The scripts posted in this blog require knowledge of Powershell and DPM cmdlets. So we thought we would present some tips ‘n tricks to become power users! Introduction The first difference between any normal Command Line Interface (CLI) (typically, Windows cmd.exe based environment) & Powershell...

  One of the more common questions that we hear from DPM customers is around the DPM dependency on the Exchange RSG, while other backup technologies do not require it.   How Microsoft customers were protecting Exchange previously When Microsoft looked at how customers were protecting Windows...

When you create a new Protection Group using the “Create Protection Group” wizard, DPM internally computes and allocates volumes for storing the replica and the shadow copies. This blog post enumerates the various formulae that we use internally to generate the default size. File system datasource...

The Microsoft Exchange team blog ( msexchangeteam.com ) recently posted an absolutely phenomenal blog post that describes exactly how DPM 2007 protects Exchange Server data. With soem really good explanations and nice graphics -- we might just reprint it as a new technical whitepaper (somewhat kidding...

This entry probably should have been a cross-posted ... but please check out my individual blog's latest post on how the DPM 2006 and DPM 2007 drivers work. Also included is a 10 minute streaming video on how DPM 2007 uses VSS, as well as the native transaction logs of Exchange Server and SQL Server...