HP Array Controller HSG V8.7 Software - Manual (Page 165)

Troubleshooting 4–11
Host’s log file or
maintenance terminal
indicates that a forced
error occurred when the
controller was
reconstructing a
RAIDset or mirrorset Unrecoverable read
errors may have
occurred when
controller was
reconstructing the
storageset. Errors occur
if another member fails
while the controller is
reconstructing the
storageset. Conduct a read scan of
the storageset using the
appropriate utility from
the host’s operating
system, such as the
“dd” utility for a
DIGITAL UNIX host. Rebuild the storageset,
then restore its data
from a backup source.
While the controller is
reconstructing the
storageset, monitor the
host error log activity or
spontaneous event
reports on the
maintenance terminal
for any unrecoverable
errors. If unrecoverable
errors persist, note the
device on which they
occurred, and replace
the device before
proceeding.
Host requested data
from a normalizing
storageset that didn’t
contain the data. Use the SHOW
storageset-name to see
if all of its members are
“normal.” Wait for normalizing
members to become
normal, then resume
I/O to them.
Table 4–1 Troubleshooting Table (Continued)
Symptom Possible Cause Investigation Remedy