From: Tim Hespe (t.hespe@unsw.edu.au)
Date: Wed Dec 04 2002 - 20:02:43 EST
Hi Sunmanagers,
We experienced power fluctuations which caused a drive to
momentarily spin
down. The drive has 5 slices 4 of which are submirrors of 4 different SDS
mirrors.
The 5th slice contains metadb replicas.
I am fairly confident that there is nothing wrong with the disk.
Two of these submirrors are shown as needing maintenance and the other 2
are OK.
Also one of the metadb replicas on this device are showing up as having
device write
errors.
flags first blk block count
a m p luo 16 1034 /dev/dsk/c0t0d0s7
a p luo 1050 1034 /dev/dsk/c0t0d0s7
a p luo 2084 1034 /dev/dsk/c0t0d0s7
a p luo 16 1034 /dev/dsk/c2t0d0s7
a p luo 1050 1034 /dev/dsk/c2t0d0s7
a p luo 2084 1034 /dev/dsk/c2t0d0s7
W p l 16 1034 /dev/dsk/c7t0d0s7
a p luo 1050 1034 /dev/dsk/c7t0d0s7
a p luo 2084 1034 /dev/dsk/c7t0d0s7
Question.
Should I use metareplace with the -e option to transition the
submirrors needing
attention to the available state. The man page seems to be saying that you
would use this option when
you have had a power disturbance. Has anyone had a similar experience and
used this option?
I guess the alternative would be to do
metadetach->metaclear->metattach
Also what steps should I take to fix the metadb replica?
metadb -d /dev/dsk/c7t0d0s7
followed by
metadb -a -c 3 /dev/dsk/c7t0d0s7 ?
Thanks
Tim Hespe
System Admin.
University of New South Wales Library
t.hespe@unsw.edu.au
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