HP LeftHand P4000 Virtual SAN Appliance Software - Manual (Page 139)

If status is Storage System Inoperable
Reboot the storage system and see if it returns to Normal, when it comes back up.
If these statuses recur
This may be an indication that the underlying hardware problem still exists.
Repairing a storage system
Repairing a storage system allows you to replace a failed disk in a storage system that contains
volumes configured for data protection levels other than Network RAID-0, and trigger only one
resync of the data, rather than a complete restripe. Resyncing the data is a shorter operation than
a restripe.
Prerequisites
•
Volume must have Network RAID-10, Network RAID-10+1, Network RAID-10+2, Network
RAID-5, or Network RAID-6.
•
Storage system must have the blinking red and yellow triangle in the navigation window.
•
If the storage system is running a manager, stopping that manager must not break quorum.
How repair storage system works
Using Repair Storage System to replace a failed disk includes the following steps:
•
Using Repair Storage System from the Storage System Tasks menu to remove the storage
system from the cluster
•
Replacing the disk in the storage system
•
Returning the storage system to the cluster
Because of the data protection level, removing and returning the storage system to the cluster would
normally cause the remaining storage systems in the cluster to restripe the data twice—once when
the storage system is removed from the cluster and once when it is returned.
The Repair Storage System command creates a placeholder in the cluster, in the form of a “ghost”
storage system. This ghost storage system keeps the cluster intact while you remove the storage
system, replace the disk, configure RAID, and return the storage system to the cluster. The returned
storage system only has to resynchronize with the other two storage systems in the cluster.
Using the repair storage system command
When a storage system in a cluster has a disk failure, the navigation window displays the storage
system and the cluster with a blinking triangle next to them in the tree. A disk inactive or disk off
event appears in the Events list, and the Status label in the tab window shows the failure.
1. If the storage system is running a manager, stop the manager. See “Stopping managers”
(page 116) .
2. Right-click the storage system, and select Repair Storage System.
Troubleshooting a cluster 139