Date: Tue, 1 Mar 2011 09:48:07 -0800 From: Erich Weiler <weiler@soe.ucsc.edu> To: "freebsd-scsi@freebsd.org" <freebsd-scsi@freebsd.org> Subject: MFI driver issues Message-ID: <E8A852F2-A3CF-45E7-8CE1-F8C50CD202A4@soe.ucsc.edu>
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Greetings all, I was recently having trouble with a Dell R610 server with a Perc H800 SAS c= ontroller, which had 2 12 disk MD1200's SAS chained together (so 24 disks to= tal). However, I get these hangs every once in a while to the tune of: mfi0: COMMAND xxxxx Timeout After 60 seconds And that repeats every 30 seconds. I can 'fix' it by doing a: mfiutil show volumes Oddly enough. It then 'unfreezes'. BTW, I'm on 8.2-PRERELEASE, with the latest snapshot from March 1st, 2011. Now, I was following this thread: http://old.nabble.com/mps%284%29-driver-%28LSI-6Gb-SAS%29-commited-to-stable= -8-td30960262.html And it looks like I may be able to use the MPT driver instead of MFI to reso= lve my problem? And it looks like it maybe was recently committed to 8-STAB= LE? But I don't see MPT in this snapshot I'm on, so maybe I'm mistaken. An= yone have any ideas? =20 BTW, I have the latest firmware on the controller and have even tried anothe= r controller (same exact model) and the same lockup happens under heavy writ= es. Thanks for any hints!! -erich
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