From owner-freebsd-scsi Fri May 29 02:50:34 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id CAA01146 for freebsd-scsi-outgoing; Fri, 29 May 1998 02:50:34 -0700 (PDT) (envelope-from owner-freebsd-scsi@FreeBSD.ORG) Received: from freya.circle.net (freya.circle.net [209.95.95.2]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id CAA01022; Fri, 29 May 1998 02:50:09 -0700 (PDT) (envelope-from tcobb@staff.circle.net) Received: by freya.circle.net with Internet Mail Service (5.5.1960.3) id ; Fri, 29 May 1998 05:49:31 -0400 Message-ID: <509A2986E5C5D111B7DD0060082F32A402FAD1@freya.circle.net> From: tcobb To: "'Eivind Eklund'" , "'freebsd-current@freebsd.org'" , "'freebsd-scsi@freebsd.org'" Subject: RE: DPT driver fails and panics with Degraded Array Date: Fri, 29 May 1998 05:49:30 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.1960.3) Content-Type: text/plain Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > -----Original Message----- > From: Eivind Eklund [mailto:eivind@yes.no] > Sent: Friday, May 29, 1998 5:43 AM > To: tcobb; 'freebsd-current@freebsd.org'; 'freebsd-scsi@freebsd.org' > Subject: Re: DPT driver fails and panics with Degraded Array > > > On Thu, May 28, 1998 at 10:49:23PM -0400, tcobb wrote: > > I believe that the DPT DRIVER is not correctly sensing that > the array is > > okay, even though it is in degraded mode, and incorrectly returns > > sector/MB values which panic the kernel. I don't recommend > depending on > > the proper operation of this driver for your > High-Availability needs. > > I have an older DPT, but I still want to add my experiences to the > above: > > (1) I've had my array (a 2GB RAID1 - personal RAID :-) run in degraded > mode. This has worked just fine with the driver in -current, with > the RAID full (of partitions, not data. I can't understand that > the amount of data should make a difference - the controller > shouldn't know about this anyway). Perhaps the difference is RAID-1 versus RAID-5. > (2) The DPT controller on this has reported alternating wrong sense of > the disk setup to the BIOS. This is obviously NOT a driver > problem. True. Interestingly enough, I've never had a problem with the wrong BIOS info from my DPT card. Only with the incorrect sensed info when using the DPT driver on a RAID-5 array when that array is in degraded mode. The fact that it panics trying to boot is amazing to me. It is NOT trying to boot from the RAID-5 by the way. > As for your problems, I'm sorry to hear about them, but have no idea > how to fix it. I've had none of the problems you have :-( Lucky for you, less so for me. ;) -Troy Cobb Circle Net, Inc. http://www.circle.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message