IBM 8676 - Eserver xSeries 335 Hardware Maintenance Manual And Troubleshooting Manual page 114

FFFF or other code not listed
1. Place download jumpers on the controller and try to flash the firmware code to
2. Isolate between SCSI subsystem and controller by disconnecting all SCSI
104
xSeries 335 Type 8676, Type 8830: Hardware Maintenance Manual and Troubleshooting Guide
Note: ServeRAID-4H controllers have 4 channels; ServeRAID-4L and -4Lx
controllers have only one channel; and ServeRAID-4M and -4Mx
controllers have 2 channels. ServeRAID-5i controllers have no
channels. The ServeRAID-5i uses the channel connectors of the
server's onboard integrated SCSI controller.
Table 7. SCSI identifier
SCSI Channel Code (z)
1
2
3
4
5
6
7
8
9
A
B
C
D
E
F
b. Confirm that the channel(s) identified from the error in step 2a on page 103
is (are) the cause of the error by verifying that the error presents itself only
when the offending channel is reconnected.
c. Check termination of identified channel.
Note: SCSI channel termination details, if any, appear elsewhere in this
publication.
d. Check for proper backplane jumper configuration.
Note: SCSI channel jumper details, if any, appear elsewhere in this
publication.
e. Check for proper cabling configuration in systems that use DASD status
cables. Reconnect all cables removed in step 1 on page 103.
f. Disconnect one drive at a time attached to the channel identified in step 2a
on page 103; then, reboot to determine which drive is causing the error.
g. Replace SCSI cable.
h. Replace SCSI backplane.
the card.
cables attached to the suspect card, and reboot.
CAUTION:
Do not press F5. Doing so will change the server's configuration.
Descriptions
Channel 1
Channel 2
Channel 1 & 2
Channel 3
Channel 1 & 3
Channel 2 & 3
Channel 1, 2, & 3
Channel 4
Channel 1 & 4
Channel 2 & 4
Channel 1, 2, & 4
Channel 3 & 4
Channel 1, 3, & 4
Channel 2, 3, & 4
Channel 1, 2, 3, & 4