HP StorageWorks XP Cluster Extension Software Administrator Guide (T1656-96035, April 2010)

DescriptionState
The disk is in a failure mode. Either the XP Continuous Access Software link is down, or the disk must be
replaced. This is a special state of PSUE. If you have configured several disks into a LUSE configuration,
where several LDEVS are combined to create an extended size disk and one or more disks are in an error
condition, this state will be shown.
PDUB
This state is used to indicate that a threshold of the side file area in the XP disk array cache has been reached.
This state can be seen with fence level ASYNC only. See the HP XP Continuous Access Software documentation
for more information.
PFUL
This state is used to indicate that the side file is full and the XP disk array was not able to transfer the cache
content to the remote XP disk array for a certain time. The XP disk pair has been suspended to continue
processing host I/O. This state can be seen with fence level ASYNC only. See the HP XP Continuous Access
Software documentation for more information.
PFUS
Recovery sequence
To recover from a certain server or XP Continuous Access Software link failure:
1. Start the XP RAID Manager instances on both local and remote servers:
Linux/UNIX
export HORCMINST=instance_number
horcmstart.sh instance_number
Windows
set HORCMINST=instance_number
HORCMSTART instance_number
2. Gather general pair status information:
pairdisplay –g device_group
3. Display the pair status information after a failed swap-takeover (the S-VOL state is SSWS):
pairdisplay –g device_group –fc
4. To recover from these states, invoke the following command from the S-VOL side:
pairresync –swaps –c 15 –g device_group
If the pair needs to be used on the old primary side, the following commands must be invoked
from the primary side:
pairresync –swapp –c 15 –g device_group
horctakeover –g device_group
XP Cluster Extension recovery procedures120