HP Surestore Disk Array 12h - And FC60 Service Manual page 283

Table 38 Disk Enclosure LED Functions (cont'd)
LED State
BCC Fault Amber
OFF
Flashing
LVD Green
OFF
Term. Pwr. Green
OFF
Full Bus Green
OFF
Bus Active Green
OFF
Fan Green
Amber
OFF
Power Supply Green
Amber
OFF
Disk Fault OFF
Amber
Flashing
3 Flashing
Disk Activity
1 Startup and self-tests occur briefly when the unit is powered ON.
2 A component has failed; temperature or voltage is out of normal range.
See "Isolating Causes" on page 284
3 When a disk is installed with power on, its activity LED stays ON until
the disk has spun up. When the disk is ready, the LED turns off.
Thereafter, it flashes when there is I/O to the disk.
Indication
1
Self-test / Fault
Normal operation
Peer BCC DIP switch settings do not match
Bus operating in LVD mode
Bus operating in single-ended mode
Termination power is available from the host.
Normal operation.
There is no termination power.
Disks are on a single bus of ten addresses.
Disks are split between two buses, five addresses
each
Bus is available for use.
Isolator chip is disabled and bus is not available.
Normal operation
1
Startup / Fault
Power is off
Normal operation
1
Startup / Fault
Power is off
Disk is operating normally.
A fault has occurred with the disk.
Used to identify a disk using the software
management tools.
Indicates that the disk is being accessed by the disk
array.
SureStore E Disk System SC10 Troubleshooting
283