Viewing the Unreadable Sectors Log

Use the Unreadable Sectors Log View dialog to show a detailed list of all of the known unreadable sectors detected on the . This dialog lets you clear and save unreadable sectors.


Attention:

Possible loss of data – Any data in the Unreadable Sectors Log cannot be recovered and should be considered lost. Use this option only under the guidance of a representative.

Information on unreadable sectors is maintained for both redundant ( , , , and ) and non-redundant ( ) logical drives. The Unreadable Sectors Log can store up to 1000 unreadable sectors. When the Unreadable Sectors Log reaches 1000 entries, the following conditions apply:

Viewing Unreadable Sectors

The Unreadable Sectors Log View dialog shows the most recent unreadable sector first. The Unreadable Sectors Log View dialog contains two different window panes.

The left pane contains the sortable fields that are shown in this table.

Field Description
Logical Drive Shows the label of the logical drive. If a contains unreadable sectors, the appears for the missing logical drive.
Shows the LUN for the logical drive. If the logical drive does not have a LUN, the dialog shows NA.
Accessible By Shows the or that have access to the logical drive. If the logical drive is not accessible by a host, host group, or even a , the dialog shows NA.

The right pane contains the sortable fields that are shown in this table.

Field Description
Date/Time Shows the date and the time that the unreadable sector was detected.
Logical Drive LBA Shows the logical block address (LBA) of the logical drive.
Disk Drive Location Shows the expansion drawer and the slot location.
Disk Drive LBA Shows the LBA of the disk drive.
Failure Type Shows one of the following two failure types:
  • Media – An unreadable sector caused by a hardware failure.
  • Induced – An unreadable sector induced by the during reconstruction activities.
Clearing Unreadable Sectors

You can clear all unreadable sectors in the storage subsystem, all unreadable sectors in a single logical drive, or all unreadable sectors in a group of (multi-selected) logical drives.

  1. From the Subsystem Management Window, select Advanced >> Recovery >> Unreadable Sectors .
  2. In the left window pane, select the logical drive whose unreadable sectors that you want to clear.


    Note:

    If more than one logical drive is selected, nothing appears in the right window pane.

  3. Select the unreadable sector or sectors that you want to clear.


    Note:

    To clear all readable sectors, select at least one unreadable sector in the right window pane, and click Select All.

  4. Click Clear.
  5. To clear the unreadable sectors for the selected logical drives, in the confirmation text box, type yes, and click OK.
Saving Unreadable Sectors

You can save the contents of the Unreadable Sectors Log. All unreadable sectors are saved with a .txt file extension.

  1. From the Subsystem Management Window, select Advanced >> Recovery >> Unreadable Sectors .
  2. In the left window pane, select the logical drive whose unreadable sectors you want to save.


    Note:

    If more than one logical drive is selected, nothing appears in the right window pane.

  3. Select the unreadable sector or sectors that you want to save.


    Note:

    To save all readable sectors, select at least one unreadable sector in the right window pane, and click Select All.

  4. Click Save As.
  5. In the text box, enter the name that you want to save the log as.

The unreadable sector information is saved and contains the data listed in the fields that are shown in the Unreadable Sectors Log.

Related Links:

  • Learn About Using the Unreadable Sectors Log