FWIW, we recommend disabling C-states in the BIOS for NexentaStor systems. C-states are evil. -- richard
On Oct 31, 2011, at 9:46 PM, Lachlan Mulcahy wrote: > Hi All, > > > We did not have the latest firmware on the HBA - through a lot of pain I > managed to boot into an MS-DOS disk and run the firmware update. We're now > running the latest on this card from the LSI.com website. (both HBA BIOS and > Firmware) > > No joy.. the system seized up again within a few hours of coming back up. > > Now trying another suggestion sent to me by a direct poster: > > * Recommendation from Sun (Oracle) to work around a bug: > * 6958068 - Nehalem deeper C-states cause erratic scheduling behavior > set idle_cpu_prefer_mwait = 0 > set idle_cpu_no_deep_c = 1 > > Was apparently the cause of a similar symptom for them and we are using > Nehalem. > > At this point I'm running out of options, so it can't hurt to try it. > > Regards, > -- > Lachlan Mulcahy > Senior DBA, > Marin Software Inc. > San Francisco, USA > > AU Mobile: +61 458 448 721 > US Mobile: +1 (415) 867 2839 > Office : +1 (415) 671 6080 > > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss -- ZFS and performance consulting http://www.RichardElling.com LISA '11, Boston, MA, December 4-9 _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
