Freeing Space on Media

This page provides information on how to figure out the reasons on why media or space is not getting freed up for re-use.  Also there may be situations where you may want to forcibly age off data to free up media or disk for emergency re-use.

  • Run the Data Retention Forecast and Compliance Report to see a list of data that are not prunable and the reasons.

    Hint: Select only those storage policy copies that you are interested in, as this report is time-consuming to generate.

  • Run a Data Aging operation to age existing data that qualified for aging from the media. (See Data Aging for instructions.)
  • Check the Data Retention Rules established for the copies. (See Basic Retention Rules and Extended Retention Rules for more information.) If necessary, you can decrease the retention period to free up media space.

    Hint:  Make sure to run a Data Aging operation to make the space available after reducing the retention period on any of the copies.

  • Make sure that Auxiliary Copies are scheduled on a regular basis and that they have been successfully run. Data on the primary copy will not be aged off if Auxiliary Copies are not successful on the secondary copies. (See Start an Auxiliary Copy for instructions and also generate the Auxiliary Copy Job Summary Report to see whether these jobs complete successfully.)
  • If necessary you may also delete the contents of a media, (without running Data Aging) if you know that all of the data on a particular media is not required. (See Delete Contents for more information.)
  • For Disk Libraries, you can also setup the Thresholds for Managed Disk Space which will automatically delete the old data. See Thresholds for Managed Disk Space for more information. Retentions on copies are still honored, so you may have to lower them alongside using this option.