Digital Equipment EK-SFXXS-SG-003, Руководство по обслуживанию

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Troubleshooting 3–9
Table 3–3 (Continued) Storage Enclosure Troubleshooting Chart
Symptom(s) Probable Cause(s) Corrective Action(s)
Single Fault LED lit
on OCP.
1. Faulty disk ISE. 1. Press lit Fault button.
Read fault code
2
.
Replace failed FRU
4
.
2. Conflicting DSSI
ID numbers.
2. Verify correct DSSI
node ID settings for
that all devices on that
DSSI bus.
Multiple Fault
indicators lit on
OCP.
1. Conflicting DSSI
ID numbers.
1. Verify correct DSSI
node ID settings for
that bus.
2. Bad OCP. 2. Configure and install a
new OCP.
3. Bad DSSI
cable(s).
3. Isolate with DSSI bus
meter
3
and replace.
One or more
indicators continue
to cycle.
1. Conflicting DSSI
ID numbers.
1. Verify correct DSSI
node ID settings for
that bus.
One ISE is not
accessible.
1. DC power to ISE
is not on.
1. Turn on dc power
switch.
2. Bad ISE drive
module.
2. Replace ISE drive
module
4
.
3. Bad DSSI
cable(s).
3. Isolate with DSSI bus
meter
3
and replace.
4. Bad OCP cable. 4. Replace cable.
5. Bad power
harness.
5. Replace power harness.
2
This step only applies to SF7x storage enclosures.
3
The DSSI bus meter, or DBM, is used to look at bus signals in real-time as well as to
verify DSSI ID numbers. The DBM can quickly locate faulty cables or duplicate DSSI ID
numbers on a given DSSI bus. The DSSI bus meter part number is 29–28008–01.
4
If the fault LED remains lit after replacing FRU, wait 5-8 minutes for calibration to
complete.