Specifications

Troubleshooting Resources 4–7
Nonmirrored cache;
controller reports failed
DIMM in cache module A
or B.
Improperly installed DIMM. Remove cache module and
make sure that the DIMM is
fully seated in its slot.
Reseat DIMM.
Failed DIMM. If the foregoing check fails
to produce a remedy, check
for OCP LED codes.
Replace DIMM.
Mirrored cache;
“this controller” reports
DIMM 1 or 2 failed in
cache module A or B.
Improperly installed DIMM
in “this controller’s” cache
module.
Remove cache module and
make sure that DIMMs are
installed properly.
Reseat DIMM.
Failed DIMM in “this
controller’s” cache
module.
If the foregoing check fails
to produce a remedy, check
for OCP LED codes.
Replace DIMM in “this
controller’s” cache module.
Mirrored cache;
“this controller” reports
DIMM 3 or 4 failed in
cache module A or B.
Improperly installed DIMM
in “other controller’s”
cache module.
Remove cache module and
make sure that the DIMMs
are installed properly.
Reseat DIMM.
Failed DIMM in “other
controller’s” cache
module.
If the foregoing check fails
to produce a remedy, check
for OCP LED codes.
Replace DIMM in “other
controller’s” cache module.
Mirrored cache; controller
reports battery not
present.
Memory module was
installed before it was
connected to an ECB.
ECB cable not connected to
cache module.
Connect ECB cable to cache
module, then restart both
controllers by pushing their
reset buttons simultaneously.
Mirrored cache; controller
reports cache or mirrored
cache has failed.
Primary data and its
mirrored copy data are not
identical.
SHOW THIS_CONTROLLER
indicates that the cache or
mirrored cache has failed.
Spontaneous FMU message
displays: “Primary cache
declared failed - data
inconsistent with mirror,” or
“Mirrored cache declared
failed - data inconsistent
with primary.”
Enter the SHUTDOWN
command on controllers that
report the problem. (This
command flushes the
contents of cache to
synchronize its primary and
mirrored data.) Restart the
controllers that you shut
down.
Table 4–1 Troubleshooting Table (Sheet 3 of 7)
Symptom Possible Cause Investigation Remedy