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MegaRAID SCSI 320-0 Hardware Guide A-1
Copyright © 2002 by LSI Logic Corporation. All rights reserved.
Appendix A
Audible Warnings
The MegaRAID SCSI 320-0 RAID controller has an onboard tone
generator that indicates events and errors.
Note: This is available only if the optional series 502 Battery
Backup Unit (BBU) is installed.
Table A.1 Audible Warnings and Descriptions
Tone Pattern Meaning Examples
Three seconds on
and one second off
A logical drive is
offline.
One or more drives in a RAID 0
configuration failed.
Two or more drives in a RAID 1,
or 5 configuration failed.
One second on and
one second off
A logical drive is run-
ning in degraded
mode.
One drive in a RAID 5 configura-
tion failed.
One second on and
three seconds off
An automatically initi-
ated rebuild has been
completed.
While you were away from the
system, a disk drive in a RAID 1,
or 5 configuration failed and was
rebuilt.