4-13
Chapter 4: MegaRAID BIOS Configuration Utility
3. If you want to change the value of a property, highlight it and press ENTER.
4. Select or type a different value for the property and press ENTER.
5. When you are finished, press ESC until you return to the MANAGEMENT menu.

Viewing and Changing Virtual Drive Properties

To view or change virtual drive properties, follow these steps:
1. On the MANAGEMENT menu, select OBJECTS J VIRTUAL DRIVE.
2. Select VIEW/UPDATE PARAMETERS.
The only virtual drive properties you can change are Disk WC (Disk Write Cache) and
Read Ahead (see Section4-3: "Setting the Hard Disk Write Cache and Read Ahead
Policies" on page4-8). The other properties are view-only.

Viewing Physical Drive Properties

To view physical drive properties, follow these steps:
1. On the MANAGEMENT menu, select OBJECTS J PHYSICAL DRIVE.
2. Highlight a physical drive on the list that appears and press ENTER.
3. Select DRIVE PROPERTIES from the menu.
The drive properties are DEVICE TYPE (DISK), CAPACITY, PRODUCT ID, and REVISION NO.
These properties are view-only.
4-8 Forcing Drives Online or Offline
The MegaRAID BIOS CU enables you to force drives online or offline. You may want to
force a drive of a redundant array offline so that a hotspare drive will automatically
replace it. An auto rebuild will begin immediately if the MegaRAID BIOS CU finds a valid
hotspare drive to replace the offline drive.
You may need to force a drive online if it has gone offline due to a power failure. The
MegaRAID BIOS CU will not allow a drive to be forced online if its size is smaller than
the defined size of the array.
Auto Resume
Enable, Disable
When enabled you can stop a
consistency check, rebuild, or
initialization and resume it later
where it left off, instead of
aborting it and starting over
Enable
Disk CoercionaNone, 128MB, 1GB 1GB
a. The Disk Coercion property can be accessed only when no configuration is present for
the adapter. Otherwise, an error message appears.
Table4-1. List of Adapter Properties
Property Options Default