On Tue, February 17, 2009 01:50, Marion Hakanson wrote:
> Note that the only available pool failure mode in the presence of a SAN
> I/O error for these OS's has been to panic/reboot, but so far when the
> systems have come back, data has been fine. We also do tape backups
> of these pools, of course.
Starting with Solaris 10u6 (?), the following property is available in
zpool(1M):
failmode=wait | continue | panic
Controls the system behavior in the event of catas-
trophic pool failure. This condition is typically a
result of a loss of connectivity to the underlying
storage device(s) or a failure of all devices within the
pool. The behavior of such an event is determined as
follows:
wait Blocks all I/O access until the device con-
nectivity is recovered and the errors are
cleared. This is the default behavior.
continue Returns EIO to any new write I/O requests
but allows reads to any of the remaining
healthy devices. Any write requests that
have yet to be committed to disk would be
blocked.
panic Prints out a message to the console and gen-
erates a system crash dump.
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