No errors reported on any disks.
$ iostat -xe
extended device statistics ---- errors ---
device r/s w/s kr/s kw/s wait actv svc_t %w %b s/w h/w trn tot
vdc0 0.6 5.6 25.0 33.5 0.0 0.1 17.3 0 2 0 0 0 0
vdc1 78.1 24.4 3199.2 68.0 0.0 4.4 43.3 0 20 0 0 0 0
vdc2 78.0 24.6 3187.6 67.6 0.0 4.5 43.5 0 20 0 0 0 0
vdc3 78.1 24.4 3196.0 67.9 0.0 4.5 43.5 0 21 0 0 0 0
vdc4 78.2 24.5 3189.8 67.6 0.0 4.5 43.7 0 21 0 0 0 0
vdc5 78.3 24.4 3200.3 67.9 0.0 4.5 43.5 0 21 0 0 0 0
vdc6 78.4 24.6 3186.5 67.7 0.0 4.5 43.5 0 21 0 0 0 0
vdc7 76.4 25.9 3233.0 67.4 0.0 4.2 40.7 0 20 0 0 0 0
vdc8 76.7 26.0 3222.5 67.1 0.0 4.2 41.1 0 21 0 0 0 0
vdc9 76.5 26.0 3233.9 67.7 0.0 4.2 40.8 0 20 0 0 0 0
vdc10 76.5 25.7 3221.6 67.2 0.0 4.2 41.5 0 21 0 0 0 0
vdc11 76.4 25.9 3228.2 67.4 0.0 4.2 41.1 0 20 0 0 0 0
vdc12 76.4 26.1 3216.2 67.4 0.0 4.3 41.6 0 21 0 0 0 0
vdc13 0.0 8.7 0.3 248.4 0.0 0.0 1.8 0 0 0 0 0 0
vdc14 95.3 8.2 2919.3 28.2 0.0 2.5 24.3 0 21 0 0 0 0
vdc15 95.9 9.4 2917.6 26.2 0.0 2.1 19.7 0 19 0 0 0 0
vdc16 95.3 8.0 2924.3 28.2 0.0 2.6 25.5 0 22 0 0 0 0
vdc17 96.1 9.4 2920.5 26.2 0.0 2.0 19.3 0 19 0 0 0 0
vdc18 95.4 8.2 2923.3 28.2 0.0 2.4 23.4 0 21 0 0 0 0
vdc19 95.8 9.3 2903.2 26.2 0.0 2.5 24.3 0 21 0 0 0 0
vdc20 95.0 8.4 2877.6 28.1 0.0 2.5 23.9 0 21 0 0 0 0
vdc21 95.9 9.5 2848.2 26.2 0.0 2.6 24.3 0 21 0 0 0 0
vdc22 95.0 8.4 2874.3 28.1 0.0 2.5 23.7 0 21 0 0 0 0
vdc23 95.7 9.5 2854.0 26.2 0.0 2.5 23.4 0 21 0 0 0 0
vdc24 95.1 8.4 2883.9 28.1 0.0 2.4 23.5 0 21 0 0 0 0
vdc25 95.6 9.4 2839.3 26.2 0.0 2.8 26.5 0 22 0 0 0 0
vdc26 0.0 6.9 0.2 319.8 0.0 0.0 2.6 0 0 0 0 0 0
Nothing sticks out in /var/adm/messages on either the primary or cs0 domain.
The SSD is a recent addition (~3 months ago), and was added in an attempt to
counteract the poor performance we were already seeing without the SSD.
I will check firmware versions tomorrow. I do recall updating the firmware
about 8 months ago when we upgraded CAM to support the new J4200 array. At the
time, it was the most recent CAM release available, not the outdated version
that shipped on the CD in the array package.
My supervisor pointed me to http://forums.sun.com/thread.jspa?threadID=5416833
which describes what seems to be an identical problem. It references
http://bugs.opensolaris.org/bugdatabase/view_bug.do?bug_id=6547651 which was
reported to be fixed in Solaris 10 update 4. No solution was posted, but it
was pointed out that a similar configuration without LDOMs in the mix provided
superb performance.
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