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Section 4: Troubleshooting
Handling Critical Arrays
When your disk status turns critical, your array as a whole is still accessible, but one or more disks are
faulty (depending on your RAID level), and the array is in danger of failing.
Common scenarios for critical status
Unplugging a disk that is part of an array
Bad sector is detected on a disk that is part of an array
Unrecoverable data during rebuilding
Defective port or cable interrupts rebuilding process
To recover from this situation,
1.
Backup your existing data.
2.
Identify which disk is faulty.
a.
You can refer to the LED lights on the enclosure
b.
Refer to the rDrive Manager Logical tab and Event tab.
3.
Re-insert the faulty disk or replace with a new disk.
a.
The array will rebuild automatically if your auto-rebuild setting is enabled and you
reseated the faulty disk. Note: Click Rescan if the array still does not rebuild
automatically.
4.
If the new disk is added and it does not automatically start rebuilding, you can manually add the
disk in maintenance.
a.
Log into the rDrive Manager
b.
Click Advanced Config. Tab
c.
Click Maintenance > Add Disk > select the appropriate disk
5.
Rebuild should now start.
a.
If rebuild does not start, click ‘Rescan’ on the left hand panel.
Note: Rebuilding an array takes on average 2 hours per 1 Terabyte of disk capacity. The process will scan
through the entire disk, even if you have very little used disk space.
