User`s guide

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5: Troubleshooting
Table 5-4 explains what the LEDs in Figure 5-3 indicate.
Table 5-4 Dual-port RAID LRC I/O Module LEDs
LED Description Corrective Action
ESI fault
This LED illuminates amber and the
audible alarm sounds when the ESI
processor detects an internal problem.
Check for mixed single-port
and dual-port modules within
an enclosure. Also check the
drive carrier modules and
PSU/cooling modules for
faults. If the problem persists,
contact your service provider.
RAID fault
This LED illuminates amber when a
problem with the RAID controller is
detected.
Contact your service
provider.
RAID activity This LED flashes green when the RAID
controller is active.
N/A
Cache active This LED flashes green when data is
read into the cache.
N/A
Host port signal good
(1 and 2)
This LED illuminates green when the
port is connected to a host.
Check both ends of the cable
and ensure that they are
properly seated. If the
problem persists, contact
your service provider.
Drive loop signal good This LED illuminates green when the
expansion port is connected to an
expansion enclosure.
Check both ends of the cable
and ensure that they are
properly seated. If the
problem persists, contact
your service provider.