Product manual
Chapter 8: Troubleshooting
319
• AdminTool Tab
Under Background Activities, no Rebuild takes place. See Repairing, below.
The system sends an Email message about the incident to subscribing 
users, depending on user settings. See “Setting User Event Subscriptions” 
on page 84.
Repairing an Offline Disk Array or Logical Drive
RAID 1, 1E, 5, 6, 10, 50, and 60 Logical Drives
If a fault-tolerant logical drive, RAID 1, 1E, 5, 6, 10, 50, and 60, goes offline, 
it may be possible to recover your data.
RAID 0 Logical Drives
If a logical drive based on a non-fault-tolerant disk array, RAID 0, goes offline, all 
of the data on the logical drive is lost.
To recreate your logical drive:
1. Identify the failed physical drive.
See “Locating a Physical Drive” on page 119.
2. Replace the failed drive.
3. See “Installing Your Drives” on page 20.
4. If the disk array had more than one physical drive, delete the disk array and 
re-create it.
See “Deleting a Disk Array” on page 127 and “Creating a Disk Array 
Manually” on page 122.
5. Restore the data from your backup source.
Rebuilding a Disk Array
When you rebuild a disk array, you are actually rebuilding the data on one 
physical drive.
• When a physical drive in a disk array fails and a spare drive of adequate 
capacity is available, the disk array begins to rebuild automatically using the 
spare drive.
• If there is no spare drive of adequate capacity, but the Auto Rebuild function 
is ENABLED, the disk array begins to rebuild automatically as soon as you 
Warning
Take no further corrective action until you have consulted with 
Technical Support!










