HP StorageWorks 9100 Extreme Data Storage System administration guide V1.0.2 (AN540-96018, February 2010)

DescriptionState
One or two disks have failed. The RAID ADG logic is being used to continue
operations; however, there is no redundancy anymore. You should take action
as soon as possible to replace the failed disk drives. See Replacing storage
block hard disk drivefor more information.
Degraded
Some or all of the physical disks associated with the logical disk are no longer
connected to the ExDS9100cc controller. This is usually because the SAS
cables connecting the ExDS9100c and ExDS9100cx have been removed or
the ExDS9100cx has been powered off. To recover: 1. Reconnect the
ExDS9100cx.2. Power off the ExDS9100c.3. Power off the ExDS9100cx.4.
Power on the ExDS9100cx and then power on the ExDS9100c.
Disconnected
The logical drive has failed. This usually indicates that there was a triple-disk
failure. If a LUN enters the failed state you must take action as quickly as
possible as described in LUN status is failed.
Failed
The logical drive is being rebuilt. The logical drive is rebuilt when a disk drive
is removed or fails and a spare disk drive is available, and when a disk drive
is replaced. You should replace failed disk drives as soon as possible. See
Replacing storage block hard disk drivefor more information.
Recovery in progress
The logical drive is ready to rebuild, but is waiting for another logical drive
to finish rebuilding (the logical drive that is currently rebuilding will have the
recovery in progress status). This is a temporary status and will change to re-
covery in progress when the logical drive starts rebuilding.
Recovery ready
RAID parity initialization has started on the array but has not been completed.
The parity initialization process is started when an array is first configured.
Performance of an array is not optimal until parity initialization is completed.
Note: The larger the LUN, the longer parity initialization takes to complete.
Very large LUNs can take over 24 hours. If performance is a concern, do not
use the LUN until parity initialization completes.
Parity initializing
An HP ExDS9100cc array controller performs parity verification (a surface
scan) on the logical drive when the system is idle. If the surface scan finds
one or more inconsistent blocks during its most recent traversal of the logical
drive, the drive will be given the parity initialization failed status. Usually this
status is automatically cleared when a subsequent surface scan finds no incon-
sistencies. If the status does not clear within a reasonable period (for example,
72 hours) contact HP technical support.
Parity initialization
failed
The logical drive is in a state other than one of the recognized states described
here.
NOT ok
To see information about a specific LUN, enter the command show lun n
where n is the LUN number.
Viewing system status information52