IBM TotalStorage 300 Service Manual page 48

38
IBM NAS 300 Service Guide
Table 9. LEDs located on rear panel of a RAID storage controller (continued)
Host loop
Cache active Green
Battery
+
Expansion
port bypass
Expansion
loop
No Icon 10BT and
100BT
1
Always use the storage-management software to identify the failure.
Green
v On -Normal operation
v Off -One of the following situations has occurred:
– The host loop is down/not turned on/or not
connected
– A GBIC has failed or the host port is not
occupied.
– The RAID controller circuitry has failed or the
RAID controller has no power
v On -There is data in the RAID controller cache.
v Off -One of the following situations has occurred:
– There is no data in cache
– There are no cache options selected for this
array
– The cache memory has failed or the battery
has failed
Green
v On -Normal operation
v Flashing -The battery is recharging or performing
a self-test
v Off -The battery or battery charger has failed
Amber
v Off - Normal operation
v On -One of the following situations has occurred:
– The expansion port is not occupied
– The Fibre Channel cable is not attached to an
expansion unit
– The attached expansion unit is not turned on
– A GBIC has failed a Fibre Channel cable has
failed or a GBIC has failed on the attached
expansion unit.
Green
v On -Normal operation
v Off -The RAID controller circuitry has failed or
the RAID controller has no power
Green
v If the Ethernet connection is 10BASE-T, the
10BT LED is on and 100BT LED flashes faintly
v If the Ethernet connection is 100BASE-T, 10BT
LED is off and 100BT LED is on.
v If there is no Ethernet connection, then both
LEDs are off.