Checking Data Redundancy on a Disk Group

Use the Check Disk Group Consistency option to check the on a selected only when instructed to do so by the Recovery Guru.

Important:

This option should be used only under the guidance of a Customer and Technical Support representative.
This option cannot be used on disk groups which have no redundancy.
If you use this option on a disk group, the consistency check compares the data on the mirrored physical disks.
If you perform this operation on a or disk group, the consistency check inspects the consistency information that is striped across the physical disks.
To successfully perform this operation:

The in the disk group must be .
The disk group must have no virtual disk modification operations in progress.

This option can be performed only on one disk group at a time. However, you can alternatively perform a consistency check on selected virtual disks during a operation. See Changing Virtual Disk Properties for information on enabling a media scan consistency check on one or more virtual disks in the .

Select a single disk group in the Logical View; then select Advanced >> Recovery >> Check Disk Group Consistency.

Click Yes.

Click Start.

The Check Consistency operation begins. The virtual disks in the disk group are sequentially scanned, starting from the top of the table in the virtual disk dialog. As each virtual disk is scanned:

The virtual disk is selected in the virtual disk table.

The status of the consistency check is shown in the associated status column.

Status	This status displays when
Pending	This is the first virtual disk in the disk group to be scanned, but the Start button has not been selected to start the consistency check. or The consistency check operation is being performed on other virtual disks in the disk group.
Checking	The virtual disk is undergoing the consistency check.
Passed	The virtual disk passed the consistency check. No inconsistencies were detected in the redundancy information.
	The virtual disk failed the consistency check. Inconsistencies were detected in the redundancy information.
Media error	The disk physical disk media is defective and therefore unreadable.
Consistency error	The consistency is not what it should be for a given portion of the data. Warning: A consistency error is potentially serious and could cause a permanent loss of data.

The progress bar indicates the completion percentage of the consistency check for a single virtual disk, with 100% being complete. If an operation error occurs before the consistency check completes, an error message is displayed.

Note: Selecting Cancel during a consistency check will close the dialog. Immediately running a consistency check on the same disk group might cause an error. To avoid this, wait one to two minutes before running another consistency check on the same disk group.

Click Done after the last virtual disk in the disk group has been checked.

Checking Data Redundancy on a Disk Group

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