Zulus Tips

Just got first AMD based DELL to make some performance and power consumption tests. Test results is a subject for next article, here comes some notes about issues with SAS 5iR controller.

While READ/WRITE tests I have discovered following messages:

mpt0: QUEUE FULL EVENT: Bus 0x00 Target 0x00 Depth 121

Seems like default maxtags value (255) can’t be reached.


# camcontrol tags 0:0:0 -v
(pass0:mpt0:0:0:0): dev_openings 255
(pass0:mpt0:0:0:0): dev_active 0
(pass0:mpt0:0:0:0): devq_openings 255
(pass0:mpt0:0:0:0): devq_queued 0
(pass0:mpt0:0:0:0): held 0
(pass0:mpt0:0:0:0): mintags 2
(pass0:mpt0:0:0:0): maxtags 255


Looks like that problem fixed with last firmware release v.00.10.49.00.06.12.02.00, A02 but I can’t install it because there is no way to update firmware from FreeBSD. So i found some workaround. Using camcontrol value devq_openings lowered to 119:


# camcontrol tags 0:0:0 -N 119 -v
(pass0:mpt0:0:0:0): tagged openings now 119
(pass0:mpt0:0:0:0): dev_openings 119
(pass0:mpt0:0:0:0): dev_active 0
(pass0:mpt0:0:0:0): devq_openings 119
(pass0:mpt0:0:0:0): devq_queued 0
(pass0:mpt0:0:0:0): held 0
(pass0:mpt0:0:0:0): mintags 2
(pass0:mpt0:0:0:0): maxtags 255


After that change message has gone. So i suppose workaround is enough, but i will update firmware as soon as i have chance.

This entry was posted on Thursday, September 6th, 2007 at 11:23 pm and is filed under FreeBSD, Hardware. You can follow any responses to this entry through the RSS 2.0 feed. You can leave a response, or trackback from your own site.