User`s guide

70 007-4522-003
4: Using the RAID Controller
disk drive is considered unconfigured and the operational state is marked unconfigured,
offline, or dead.
If a configured disk drive is removed or fails, and a new disk drive replaces the failed
disk drive at the same location, the new disk drive is set to online spare. This allows the
automatic rebuild operation to function with replaced drives. When a disk drive is
inserted into the system, the controller recognizes that the drive has been replaced. If a
configured disk drive fails and the controller loses power or is reset, the disk drive
remains offline.
Unconfigured disk drives can be removed and the device state will remain unconfigured.
New disk drives added to the system are considered unconfigured until used in a new
configuration.
Unconfigured disk drive fault lights (LEDs) are disabled and any insertion, removal, or
errors related to these unconfigured devices do not result in fault light activity or error
message generation.
If the RAID controller is running firmware version 7.0 or later, COD information is
written to all configured drives. Unconfigured drives are not updated; their COD
information is set to all zeros.
Table 4-6 describes possible physical disk drive states. This information applies only to
physical disk drives, not to system drives.
Table 4-6 Physical Disk Drive States
State Description
Online optimal The disk drive is powered on, has been defined as a member of a drive pack, and is
operating properly.
Online spare The disk drive is powered on, is able to operate properly, and has been defined as a
standby or hot spare.
Offline failed or
Unconfigured offline
The disk drive is one of the following:
• Not present
• Present, but not powered on
• A newly inserted replacement drive
• Marked as offline by the controller due to operational failure.