5.5 HP StorageWorks X9720 Network Storage System Administrator Guide (AW549-96026, March 2011)

You do not need to shut down the server blade; disk drives can be hot swapped. However, you must
replace the removed drive with a drive of the same size.
To replace a disk drive in the server blade:
1. Check the state of the internal logical disk drive. For more information, see the HP ProLiant BL460c
Server Blade User Guide.
2. If the state is failed, use the procedure in Replacing both disk drives.
3. Remove one drive. Make sure you remove the failed drive. If you accidentally remove the wrong
drive, you will break the mirror set and the server could crash. If so, reinsert the good drive and
reboot the server.
4. Insert a replacement drive.
Replacing both disk drives
The “system disk” on an X9720 Network Storage System server blade comprises a logical RAID 0
disk that is mirrored over two physical SFF disk drives in the server blade. As long as one drive
continues to operate, the server blade can operate. However if both disk drives have failed, the system
disk is lost, and the server must be reinstalled.
To reinstall a server:
1. Remove both disk drives.
2. Insert two replacement drives.
3. Reinstall the server using the Quick Restore DVD. See Chapter 18
Replacing the Onboard Administrator (OA) module
You can replace OA modules one at a time. However, you cannot replace both OA modules at once.
CAUTION:
Do not remove both OA modules for the blade enclosure while any server blade is powered on. Doing
so could compromise data integrity.
To replace an OA module:
1. Using the HP BladeChassis Insight Display, check if the standby OA has an IP address. If one of
the OA addresses is 0.0.0.0, then review your records to determine what the IP address should
be.
2. Disconnect the network connection from the OA port to the Ethernet switch at the top of the rack.
3. Remove the OA module.
4. Replace the OA module.
5. Install the firmware as explained in Upgrading Onboard Administrator.
See the HP BladeSystem c7000 Enclosure Maintenance and Service Guide for more information.
Replacing the Ethernet Virtual Connect (VC) module (bay 1 or bay 2)
To replace a VC module:
X9720 Network Storage System Administrator Guide 135