User guide

100
Reserved Logical Drives and RAID Set Sizes
When you create a RAID set, spare drive, or JBOD on a physical drive, the BIOS RAID utility saves metadata for the
configuration in a reserved area of the physical drive. That metadata is not deleted when a RAID set or drive is deleted.
After a set or drive is deleted, the BIOS RAID utility recognizes the physical drive as a reserved logical drive and does
not report the drive to the system BIOS.
When creating a RAID set, spare drive, or JBOD, one creation parameter is the size of the set or drive. You can
accept the default size or you can use the
↑ and ↓ keys to change the size.
• If the physical drive has not yet been used to create a RAID set or drive, the BIOS RAID utility shows
the full size of the physical drive as the default size.
• If the physical drive has previously been used, the utility shows the size that was saved in the
reserved area of the physical drive.
When you increase the default size (using the ↑ key), the utility displays a warning message in the Help
section of the RAID Configuration Utility screen and waits for you to confirm the size increase before changing
the default size.