Change media scan settings for a volume

A media scan is a background operation that scans all data and redundancy information in the volume. Use this option to enable or disable the media scan settings for one or more volumes, or to change the scan duration.

Before you begin

Understand the following:

About this task

Media scans detect and repair media errors on disk blocks that are infrequently read by applications. This can prevent data loss in the event of a drive failure, as data for failed drives is reconstructed using redundancy information and data from other drives in the volume group or pool.

You can perform the following actions:

Procedure

  1. Select Storage > Volumes.
  2. Select any volume, and then select More > Change media scan settings.
    The Change Drive Media Scan Settings dialog box appears. All volumes on the storage array appear in this dialog box.
  3. To enable the media scan, select the Scan media over the course of... check box.
    Disabling the media scan check box suspends all media scan settings.
  4. Specify the number of days over which you want the media scan to run.
  5. Select the Media Scan check box for each volume you want to perform a media scan on.
    System Manager enables the Redundancy Check option for each volume on which you choose to run a media scan. If there are individual volumes for which you do not want to perform a redundancy check, deselect the Redundancy Check check box.
  6. Click Save.

Result

System Manager applies changes to background media scans based on your selection.