Compressing data for tape can result in significant savings in time, hardware, and performance. By compressing data, you are able to put more data on tape and use fewer tape drives. DPM supports compressing data in protection groups on tape for long-term and short-term protection. The following procedure shows you how to compress data in a protection group.

Note
DPM does not support compression if you choose to encrypt data in a protection group.

To compress data in a protection group

  1. In DPM Administrator Console, click Protection on the navigation bar.

  2. On the Actions menu, click Create protection group. This starts the Create New Protection Group Wizard.

  3. On the Welcome to the New Protection Group Wizard page, click Next.

    Note
    You can choose not to display the Welcome page by selecting the Do not show this Welcome page again check box.
  4. Select the members of the protection group by selecting the check boxes in the Available members pane, and click Next.

  5. Select the data protection method and click Next.

  6. Select short-term objectives for the protection group, and click Next.

  7. Review disk allocation and click Next. You can also modify the disk space allocated in protected computers by clicking Modify.

  8. Select long-term protection goals and a backup schedule for the protection group, and click Next.

  9. On the Select Tape and Library Details page, specify details about the library, drives allocated, and copy library you would like to use for backup.

  10. In the Tape options for long-term protection pane, click Compress data and then click Next.

  11. Choose a replica creation method for the protection group, and click Next.

  12. On the Summary page, click Create Group.

    Note
    If you want to compress data in a protection group that has already been created, in DPM Administrator Console, click Protection on the navigation bar. Select a protection group. Then on the Actions menu, click Modify protection group. Follow the Modify Protection Group Wizard, and on the Select Tape and Library Details page, click Compress data.

See Also