HP Surestore Disk Array 12h and FC60 - Manual (Page 39)

Array Controller Enclosure Components 39
Produ
ct Des
c
ript
ion
Each controller module has ten LEDs. See Figure 12 . One LED identifies the controller
module’s power status. A second LED indicates when a fault is detected. The remaining
eight LEDs provide detailed fault condition status. The most significant LED, the heartbeat,
flashes approximately every two seconds beginning 15 seconds after power-on.
"Troubleshooting" on page 359 contains additional information on controller LED
operation.
The controller module connects to the host via Fibre Channel, and to the disk enclosures
via LVD SCSI. Each controller must have a unique host fibre ID number assigned using the
ID switches on the back of the controller modules. See
"Installation" on page 143 for more
information on setting host IDs.
Figure 12 Controller Module LEDs