HP StorageWorks 2300 Disk System - Manual (Page 102)

102 Troubleshooting
LED states are described in Table 11:
Table 11. LED Functions
LED State Indication
System Power Green Power is on
OFF Power is off
System Fault Amber Self-test
1
/ Problem
2
OFF Normal operation
Flashing BCC A & B DIP switch settings
do not match.
BCC Fault Amber Self-test
1
/ Fault
OFF Normal operation
Flashing Peer BCC DIP switch settings
do not match or BCC not installed properly
Term. Pwr. Green Termination power is available
from the host.
Flashing Activity on the bus
OFF There is no termination power.
Full Bus Green Disks are on a single bus of 14
addresses.
OFF Disks are split between two buses,
seven addresses each
1 Start-up 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 Faults on page 104
3 When a disk is installed with power on, its activity LED
blinks on momentarily indicating a SCSI bus reset. When
the disk is ready, the LED blinks once and turns off.
Thereafter, it flashes when there is I/O to the disk.