Lenovo ThinkServer RD330 Software User's Manual page 81

MegaRAID SAS Software User Guide
In the case of a failure of one drive or two drives in a virtual drive, the RAID controller
uses the parity blocks to recreate all of the missing information. If two drives in a RAID 6
virtual drive fail, two drive rebuilds are required, one for each drive. These rebuilds do
not occur at the same time. The controller rebuilds one failed drive, and then the other
failed drive.
NOTE: Integrated MegaRAID (IMR) displays new drives as JBOD (Just a Bunch of Disks).
For MegaRAID, unless the inserted drive contains valid DDF metadata, new drives
display as JBOD for MegaRAID Entry level controllers, such as the SAS 9240-4i/8i.
Rebuilds start only on unconfigured good drives, so you have to change the new drive
state from JBOD to unconfigured good to start a rebuild.
When you select Manual Configuration and click Next, the drive Group Definition
screen appears. You use this screen to select drives to create drive groups.
1. Hold <Ctrl> while selecting at least three ready drives in the Drives panel on the left.
2. Click Add To Array to move the drives to a proposed drive group configuration in
the Drive Groups panel on the right, as shown in Figure 41.
3. If you need to undo the changes, click Reclaim.
4. Choose whether to use drive encryption.
The drop-down menu in the Encryption field lists the options.
Figure 41: WebBIOS Drive Group Definition Screen
5. After you finish selecting drives for the drive group, click Accept DG for each.
6. Click Next.
Chapter 4: WebBIOS Configuration Utility
|
Creating a Storage Configuration
Page 81