From owner-freebsd-scsi Sat Aug 12 13:24:28 2000 Delivered-To: freebsd-scsi@freebsd.org Received: from northlink.com (northlink.com [216.19.0.216]) by hub.freebsd.org (Postfix) with ESMTP id D84A337BA0B for ; Sat, 12 Aug 2000 13:24:14 -0700 (PDT) (envelope-from jmodjeski@ms1.northlink.com) Received: from ms1.northlink.com (ms1.northlink.com [216.19.4.28]) by northlink.com (8.9.1/8.9.1) with ESMTP id NAA26305; Sat, 12 Aug 2000 13:23:57 -0700 (MST) X-Real-From: jmodjeski@ms1.northlink.com X-Real-To: freebsd-scsi@freebsd.org Received: by MS1 with Internet Mail Service (5.5.2650.21) id ; Sat, 12 Aug 2000 13:11:40 -0700 Message-ID: <00101B7A7FDDD311A89500A0CC56C79048B9@MS1> From: Joe Modjeski To: "'Bernd Walter'" Cc: "'freebsd-scsi@freebsd.org'" Subject: RE: to Vinum or not to Vinum Date: Sat, 12 Aug 2000 13:11:39 -0700 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > On Thu, Aug 10, 2000 at 12:09:47PM -0700, Joe Modjeski wrote: > > Currently we have 3 Compaq Proliant 1600R servers with 6 > 9.1 Ultra3 drives > > in each. We are attempting (very unsuccessfully) to do > Raid5 with vinum. > > We get fatal trap 12 errors very regularly and after a few > reboots the vinum > > volume is so chewed up that we end up having to rebuild the > system. I > > tracked down the majority of the problems to the > /etc/security script. I > > believe it is about the 6th or 7th line down where it > starts the find run. > > The box starts off fine but after about 1 minute it starts > to hit all the > > drives at once then BLAM!! It gives me the error. > > Are your fatal trap 12 errors kernel panics? > If yes do you see some SCSI error messages directly before > this happens? > > -- > B.Walter COSMO-Project > http://www.cosmo-project.de > ticso@cicely.de Usergroup info@cosmo-project.de > Yes they are kernel panics. And Yes there are always SCSI errors. BAD DSA ( SOME_HEX_NUMBER ) in queue SCSI BUS RESET DETECTED sym0:0:-1:-1 The above isn't exact. The message conveniently misses the logs. I can get the exact messages if you would like. I am trying to avoid crashing the box as much as possible. :) The drives are Hotswap and it does appear that they get "Disconnected" when the error happens. It is however no specific. In my original vinum setup I was spanning the raid across all 6 drives. Then it was consistant with drive 0. I though that was reason for the trouble so I changed the configuration to the one included in the previous message. I have compiled a debug kernel in an effort to get a dump and now the fatal trap 12 kernel panics are less the SCSI errors that go along with them are more consistant. Joe Modjeski Administrator jmodjeski@northlink.com Northlink LLC 450 W Goodwin Suite 107 Phone: (520) 445-0707 Fax: (520) 541-0096 http://www.northlink.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message