Hi, I just posted a summary of a similiar issue I'm having with non-Sun hardware. For the record, it's in a Chenbro RM41416 chassis with 4 chenbro SAS backplanes but no expanders (each backplane is 4 disks connected by SFF-8087 cable). Each of my LSI brand SAS3081E PCI-E cards is connected to two backplanes with 1m SFF-8087 (both ends) cables. For more details if they are important see my other post. I haven't tried the MSI workaround yet (although I'm not sure what MSI is) but from what I've read the workaround won't fix the issues in my case with non-sun hardware.
Thanks, Chad On Tue, Dec 01, 2009 at 12:36:33PM +1000, James C. McPherson wrote: > Hi all, > I believe it's an accurate summary of the emails on this thread > over the last 18 hours to say that > > (1) disabling MSI support in xVM makes the problem go away > > (2) disabling MSI support on bare metal when you only have > disks internal to your host (no jbods), makes the problem > go away > (several reports of this) > > (3) disabling MSI support on bare metal when you have a non-Sun > jbod (and cables) does _not_ make the problem go away. > (several reports of this) > > (4) the problem is not seen with a Sun-branded jbod and cables > (only one report of this) > > (5) problem is seen with both mpt(7d) and itmpt(7d). > > (6) mpt(7d) without MSI support is sloooooow. > > > For those who've been suffering this problem and who have non-Sun > jbods, could you please let me know what model of jbod and cables > (including length thereof) you have in your configuration. > > For those of you who have been running xVM without MSI support, > could you please confirm whether the devices exhibiting the problem > are internal to your host, or connected via jbod. And if via jbod, > please confirm the model number and cables. > > Please note that Jianfei and I are not making assumptions about the > root cause here, we're just trying to nail down specifics of what > seems to be a likely cause. > > > thankyou in advance, > James C. McPherson > -- > Senior Kernel Software Engineer, Solaris > Sun Microsystems > http://blogs.sun.com/jmcp http://www.jmcp.homeunix.com/blog > _______________________________________________ > zfs-discuss mailing list > zfs-discuss@opensolaris.org > http://mail.opensolaris.org/mailman/listinfo/zfs-discuss _______________________________________________ zfs-discuss mailing list zfs-discuss@opensolaris.org http://mail.opensolaris.org/mailman/listinfo/zfs-discuss
