User manual

Fast Trak TX2200 / TX4200 User Manual
36
Rebuild a Mirrored Logical Disk
When a mirrored (RAID 1 or 10) logical disk suffers a disk drive failure, it goes
Critical. This means you can still access the logical disk but it has lost fault
tolerance. To restore the logical disk to Functional status, you must:
• Replace the failed drive
• Rebuild the logical disk to the replacement drive.
If you have a FastTrak TX4200 with a Mirrored (RAID 1) logical disk, you can
have a hot spare disk drive. With the hot spare, rebuilding of the logical disk to
the spare drive will happen automatically. See page 33.
For all other Mirrored (RAID 1 or 10) logical disk configurations, you must rebuild
the Critical logical disk manually, as described below.
When you boot your system, the FastTrak BIOS displays the Critical status and
describes what to do (above).
If your FastTrak’s Halt on Error feature is enabled (shown in the screen page 25),
your system will stop booting at the FastTrak BIOS screen and wait for your input.
If Halt on Error is disabled, your system will pause for a few moments, then
continue booting.
When you observe this condition when booting your system from the FastTrak
BIOS, your logical disk needs attention.
ID MODE SIZE STATUS Exp/Converting
1 1x2 Mirror 120000M Critical
Problem is detected with Array : 1
Critical Status:
A disk member of a mirrored array has failed or is not responding.
The array is still functional, but fault tolerance is disabled.
Before continuing, power off the system and confirm that the drives and
cables are properly attached before replacing the failed drive and
rebuilding the array.
1) Identify which drive has failed with the "<3> Define array" menu option.
2) Power off the system, replace the failed drive.
3) Restart the system and enter the FastBuild (tm) setup menu.
4) Choose the "<5> Rebuild Array" menu optionto rebuild the array.
Press <Ctrl-F> to enter FastBuild (tm) Utility...
Press <ESC> to continue booting...