IBM 326m - eServer - 7969 Hardware Maintenance Manual page 105

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9Zxx thru BZxx (SCSI bus error caused by cables, termination, defective drives, or
similar problem)
1. Isolate between SCSI subsystem and controller by disconnecting all SCSI
cables from suspect card, and restart.
Attention:
Do not press F5. Doing so changes the server configuration.
If an ISPR error is still present, perform the following actions until the error is no
longer present:
a. Reseat the controller
b. Replace the controller
Notes:
a. SCSI channel cable details, if any, appear elsewhere in this document.
b. The adapter/controller detects a configuration change. Do not select Save
Changes. Instead, press F10 to bypass any options to this effect.
2. If ISPR error is EF10 after disconnecting cables:
a.
Identify which channel is causing the error by the second digit (Z) of the
original ISPR code as indicated in the following table.
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
onboard integrated SCSI controller.
Table 2. 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 channels identified from the error in step 2a 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
document.
Descriptions
Channel 1
Channel 2
Channel 1 and 2
Channel 3
Channel 1 and 3
Channel 2 and 3
Channel 1, 2, and 3
Channel 4
Channel 1 and 4
Channel 2 and 4
Channel 1, 2, and 4
Channel 3 and 4
Channel 1, 3, and 4
Channel 2, 3, and 4
Channel 1, 2, 3, and 4
Chapter 7. Symptom-to-FRU index
95

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