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  • Blog Post: Series on Protecting Hyper-v with DPM

    Hello all! The DPM product team is about to embark on a series of blogs specifically dedicated to protecting your Hyper-V environment. We will be covering a gamut of topics ranging from various protection scenarios, recovery scenarios, tips 'n tricks, under-the-hood glimpse into how DPM works with...
  • Blog Post: 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...
  • Blog Post: Exchange 2010 can be protected by multiple DPM servers

    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...
  • Blog Post: Exchange 2010 clusters can be protected by multiple DPM servers

    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...
  • Blog Post: 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...
  • Blog Post: 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...
  • Blog Post: Protecting Exchange Server with DPM 2007 - new blog post from MS Exchange Team

    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...
  • Blog Post: DPM CLI Tips 'n Tricks: Powershell Basics

    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...
  • Blog Post: Potential VM protection name confusion

    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...
  • Blog Post: Why does DPM use the Recovery Storage Group in Exchange?

      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...
  • Blog Post: 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...
  • Blog Post: About defining DPM protection from CLI

    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...
  • Blog Post: DPM v2007 Tape Optimization Guidance

    The attached paper introduces the concept of tape optimization in DPM 2007. It also provides instructions on how to implement these concepts.
  • Blog Post: Enabling/Disabling co-location of data on Tape

    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...
  • Blog Post: How does DPM really protect data?

    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...
  • Blog Post: DPM 2007 -- Calculating Disk Allocation

    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...
  • Blog Post: Why is recovery point consumption smaller than transferred data?

    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...