Defective Disk Board

System error message or LED code identifies a specific board 

Locate indicated board.  

LED code must be Off-On-Off. See Table 9-2.

Check LEDs on board to verify ASR has deactivated the board. 

Set the SCSI IDs of the replacement drives.  

See Appendix C, SCSI Devices.

Replace the board or device. 

See "Hot-Plug Feature".

Note: board is not active until system is booted.  

Board not identified or intermittent problem 

Check /var/adm/messages

Locate defective SCSI device with probe-scsi-all (OpenBoot command).

Check ID jumpers on board. 

See "Disk Board Target IDs".