Installation guide

Installation Troubleshooting
9.1 Troubleshooting the Storage Enclosure
Table 9–1 (Cont.) Troubleshooting Chart
Symptom(s) Probable Cause(s) Corrective Action(s)
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.
3. Bad DSSI cable(s). 3. Isolate with DSSI bus
meter
2
and replace.
4. Bad OCP cable. 4. Replace cable.
5. Bad power harness. 5. Replace power harness.
ISE is not seen or seen
at unexpected DSSI ID
value.
1. Cables are not
plugged in the
transition module
or ISE.
1. Check that both ends of
OCP cables are plugged in.
2. Bad OCP ID
switch.
2. Reconfigure and replace
OCP.
3. Bad OCP cable. 3. Replace appropriate OCP
cable.
2
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.
(continued on next page)
9–4 Installation Troubleshooting