Handling Lost Blocks

In rare circumstances, a volume or snapshot may experience lost blocks. For example, if a power failure is followed by the failure of a control module cache battery (resulting from more than 72 hours of battery operation after the power failure or other factors), lost blocks may occur.

If volume blocks have been lost, the Volume Summary window (Figure 6: Volume Summary ) will display the current status of the volume as offline-lost-blocks. If snapshot blocks have been lost, the Volume Snapshots window (Figure 3: Volume Snapshots ) will display the current status of the snapshot as offline-lost-blocks.

In addition, an event message will be generated indicating the lost blocks.

To handle lost blocks, click the offline-lost-blocks link. The Acknowledge lost blocks dialog box appears (Figure 33: Acknowledge Lost Blocks ).

Figure 33: Acknowledge Lost Blocks

If lost blocks occur, you can do one of the following: