Date: Wed, 12 Jan 2011 12:27:00 +0100 From: Joachim Tingvold <joachim@tingvold.com> To: freebsd-scsi@freebsd.org Subject: mps0-troubles Message-ID: <DBFAF239-6C77-44FA-B829-E76070F5B0F5@tingvold.com>
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Hi, I'm not sure if this is the proper place to ask for help regarding this, but here it goes; I've got 17 disks connected to a HP SAS expander, which again is connected to a LSI SAS 9211-8i HBA. I also have 1 system-disk that's connected directly to the SATA-controller on the motherboard. This is running on FreeBSD 9.0-CURRENT-201012. I'm running ZFS on root (referred to as "zroot"), and also on the 17 disks connected to the LSI-controller (6x2TB raid-z2 + 10x1TB raid-z + 1 hot-spare, referred to as "storage"). This setup has been running fine since around christmas, but today, when I was moving some files from the zroot to storage, it failed. First, the moving went just fine (I was looking at gstat while it was copying), but then no activity (even though I knew it wasn't done -- there was a lot of large files). Trying to list any files on the storage-volume didn't work (CTRL+C didn't work either, I had to quit the terminal). The mv-process was still running, even though there was no disk-activity; [jocke@filserver ~]$ ps aux | grep mv root 33698 0,0 0,1 10048 2132 0- D+ 11:35am 0:01,66 mv -PRp -- JAG /storage/series/JAG (cp) I've extracted the relevant lines from dmesg since the machine booted on sunday; <http://home.komsys.org/~jocke/dmesg_mps0_freebsd-scsi.txt>. After a while (couple of minutes), I could list files on the storage- volume, and ZFS reported no problems. Then, after a few new minutes, I could not list anything on the storage-volume, and it's been like that since (ZFS and dmesg reports no further errors, though). I mentioned that the mv-process is still running; it won't die, but I guess that's because it has the D-flag (disk wait). [root@filserver ~]# kill -9 33698 [root@filserver ~]# ps aux | grep mv root 33698 0,0 0,1 10048 2132 0- D+ 11:35am 0:01,66 mv -PRp -- JAG / storage/series/JAG (cp) This isn't really my field of expertise, so I'm hoping that someone here on the list might enlighten me. (-: -- Joachimhome | help
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