Technical data

4–12 Troubleshooting
Cache module may
erroneously contain
unflushed write-back
data. This may occur
after you’ve installed a
new controller. Its
existing cache module
may indicate that it
contains unflushed
write-back data, but
the new controller
expects to find no data
in the existing cache
module.
(This error may also
occur if you install a
new cache module for a
controller that expects
write-back data in the
cache.)
SHOW
THIS_CONTROLLER
indicates “invalid
cache.”
No spontaneous FMU
message.
Connect a terminal to the
maintenance port on the
controller reporting the
error, and clear the error
with the following
command—all on one
line: CLEAR_ERRORS
THIS_CONTROLLER
DESTROY
INVALID_CACHE. See
HSZ80 Array Controller
ACS Version 8.3
Configuration and CLI
Reference Guide
for more
information.
Table 4–1 Troubleshooting Table (Continued)
Symptom Possible Cause Investigation Remedy