ArrayMasStor K Series
ÒInstallation Instructions and Procedures.Ó
Copyright
Ó
Advanced Technology and Systems Co., Ltd., 11/2001 Rev. A
28
Trademarks and Trade names that may appear within this document are the property of their respective owners.
Drive Trays
Drive trays as a component separate from drives are unlikely to encounter problems unrelated to a
drive failure. In the event that you suspect a drive failure may in fact be a problem with a drive
tray, shut down the host, remove the questionable drive and tray, and examine the power and data
cables to see if they have come loose or are damaged.
If, after checking the cables and returning the drive to its bay in the enclosure, the drive is still
showing a failure, the drive itself has probably failed.
LEDs
LEDs, both on the enclosure and on each drive tray, are primarily used to indicate the status of the
drives, power supplies, and array. Each of the LEDs listed below has a warning function:
q
Attention LED Ð
front panel, upper left side Ð when lit, indicates that some error has occurred.
q
Drive Fault LEDs Ð
front panel, one each to the left of each drive bay Ð when lit, indicates that
the drive in the corresponding bay has failed.
q
Power Supply LEDs Ð
upper center of each power supply Ð when lit green, the power supply is
working; when lit amber, the power supply has failed. (Note that these are distinct from the
power LEDs on each drive tray and on the main front panel.)
Ports
The ports on the K-Series RAID system are not likely to fail even under the most strenuous
circumstances. It is much more likely that a cable has failed, so the first thing to do if you suspect a
port or cable failure is to replace the cable with one that is known to be good. If replacing the cable
repairs the problem, the failure is with the old cable not the port. Note that a SCSI bus must be
terminated at both ends.
Replacement Parts
New fans, power supplies, trays, and other similar enclosure parts may be available from your
supplier. Please note that replacement parts are
not
available directly from the manufacturer. We
suggest that you contact your supplier in the event of a failure or damage to inquire about
replacement part availability.
Drives
Drives sometimes fail. One purpose for a RAID array is to protect data integrity in the event of a
drive failure. In a RAID1, RAID3, or RAID5 configuration, a single drive failure is not
catastrophic. Data is not only protected, it remains available despite the drive failure.
If a drive fails, the Attention LED will light, the red Fault LED to the left of the bay will also light,
the alarm will sound, the LCD will display an error icon, and the event log will record the drive
failure.
Spare Installed
If the array has a spare drive already installed, the spare will automatically replace the failed drive.
