Installation guide

Installation Troubleshooting
9.1 Troubleshooting the Storage Enclosure
Use Table 9–1 to isolate a failure in a storage enclosure.
Table 9–1 Troubleshooting Chart
Symptom(s) Probable Cause(s) Corrective Action(s)
No OCP indicators are
lit.
1. Storage enclosure
is not plugged in or
not turned on.
1. Plug in the ac power cord or
turn on the AC power.
2. Drive dc power
switch is off.
2. Turn on the drive dc power
switch.
3. OCP is not plugged
in or seated firmly.
3. Press the OCP firmly in
place.
4. Bad OCP. 4. Configure and replace a new
OCP.
5. Bad transition
module.
5. Configure and replace a new
transition module.
Single Fault indicator lit
on OCP.
1. Faulty disk ISE. 1. Press lit Fault button. Read
fault code
1
. Replace failed
FRU.
2. Conflicting DSSI ID
numbers.
2. Verify correct DSSI node ID
settings for that 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
2
and replace.
1
This step only applies to SF7x storage enclosures.
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)
Installation Troubleshooting 9–3