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  • Blog Post: Erasing unsupported tapes & utility automation sample

    You may encounter tapes in DPM libraries that are written with an unsupported block size and first need to be erased because DPM cannot evaluate such tapes and therefore will not do anything to it. The ZIP file that can be downloaded here contains a script, script user guide and two utilities to accomplish...
  • Blog Post: How to use SAN recovery option and mapping data source volumes to Windows disks

    Say you want to use the DPM “SAN recovery” option. This requires storage management steps for which it is useful to know which Windows disks (LUN’s) hold the associated DPM volumes for a given data source. First a generic recap of the potential ‘DPM SAN recovery’ advantages and steps; ‘SAN recovery’...
  • Blog Post: The search for DPM tape utilities stops here…

    This solution combines several existing tape related scripts with enriched functionality. The short list is shown in the DPMTapeUtil user guide illustration on the right. You can download the script and user guide from here , provided “as is” no rights or warranties implied. This script...
  • Blog Post: Replacing tape drive assignments

    Imagine you got a replacement library for a broken one, or one with larger capacity to partition or share between DPM servers but anyway shows up as another tape drive. For discussion sake we say everything is fine with the new library but you now got all those protection groups on one or more DPM servers...
  • 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...