On Thu, May 03, 2012 at 07:50:00AM -0500, Stan Hoeppner wrote: > > Any other suggestions (and of course interpretation of the kernel call > > tracebacks) would be much appreciated. > > Which mainboards are these Brian? Make/model? Tyan S5510, with Intel Xeon CPU E31225 @ 3.10GHz Upgraded to BIOS 1.05a and iKVM 3.00 > Make/model/count of all add in cards? 1 x LSI SAS9201–16i 1 x LSI SAS92118–8i 1 x Intel X520-DA2 dual 10G NIC although the 10G link wasn't being used for the most recent tests. > Make/model of PSU? Will have to check, I think it may be this one: http://www.xcase.co.uk/XCASE-Power-Supply-p/psu-dolphin-900..htm > Make model of chassis? http://www.xcase.co.uk/24-bay-Hotswap-rackmount-chassis-norco-RPC-4224-p/case-xcase-rm424.htm The drives are 24 x ST3000DM001 (I was hoping to get low-power Hitachi drives but they weren't available at the time) > I'll sleuth around and see what I can find. Could be some obscure > expansion card interaction. Could be undersized PSUs or lack of > backplanes spread evenly across the 12v rails of a multi-rail PSU, etc, etc. Much appreciated. However, last night I rebooted one box (the one which wouldn't let me ssh in) then upgraded it to ubuntu 12.04. It has been running a couple of concurrent bonnie++ instances for over 24 hours without a hitch. So maybe it's the mpt2sas driver which is the difference: [dmesg from Ubuntu 11.10] mpt2sas version 08.100.00.02 [dmesg from Ubuntu 12.04] mpt2sas version 10.100.00.00 Regards, Brian. _______________________________________________ xfs mailing list xfs@xxxxxxxxxxx http://oss.sgi.com/mailman/listinfo/xfs
