Avago Technologies MegaRAID Fast Path Software - Manual (Page 199)

LSI Corporation Confidential | July 2011 Page 199
MegaRAID SAS Software User Guide Chapter 4: WebBIOS Configuration Utility | Managing Configurations
4.14 Managing Configurations This section includes information about maintaining and managing storage
configurations.
4.14.1 Running a Consistency Check You should periodically run a consistency check on fault-tolerant virtual drives. A
consistency check verifies that the redundancy data is correct and available for RAID 1,
RAID 5, RAID 6, RAID 10, RAID 50, and RAID 60 drive groups. To do this, follow these
steps:
1. On the main WebBIOS configuration utility main dialog, select a virtual drive.
2. Click Virtual Drives.
3. When the Virtual Drive dialog appears, select CC in the lower-left panel, and click
Go.
The consistency check begins.
If the WebBIOS configuration utility finds a difference between the data and the parity
value on the redundant drive group, it assumes that the data is accurate and
automatically corrects the parity value. Be sure to back up the data before running a
consistency check if you think the data might be corrupted.
4.14.2 Deleting a Virtual Drive You can delete any virtual drive on the controller if you want to reuse that space for a
new virtual drive. The WebBIOS configuration utility provides a list of configurable drive
groups where there is a space to configure. If multiple virtual drives are defined on a
single drive group, you can delete a virtual drive without deleting the whole drive
group.
CAUTION: Back up any data that you want to keep before you delete the virtual drive.
To delete a virtual drive, follow these steps.
1. Access the Virtual Drive dialog by clicking on a virtual drive icon in the right panel
on the WebBIOS configuration utility main dialog.
The Virtual Drive dialog appears.
2. Select Delete in the bottom panel under the heading Operations, and click Go.
3. When the message appears, confirm that you want to delete the virtual drive.
If a virtual drive is associated with a CacheCade virtual drive with a write policy, the
following confirmation screen appears.