From owner-freebsd-current Sat May 30 00:17:50 1998 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id AAA07554 for freebsd-current-outgoing; Sat, 30 May 1998 00:17:50 -0700 (PDT) (envelope-from owner-freebsd-current@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 AAA07498; Sat, 30 May 1998 00:16:23 -0700 (PDT) (envelope-from tcobb@staff.circle.net) Received: by freya.circle.net with Internet Mail Service (5.5.1960.3) id ; Sat, 30 May 1998 03:15:46 -0400 Message-ID: <509A2986E5C5D111B7DD0060082F32A402FAE9@freya.circle.net> From: tcobb To: "'shimon@simon-shapiro.org'" , "'freebsd-scsi@freebsd.org'" Cc: "freebsd-current@freebsd.org" , Karl Pielorz Subject: RE: DPT driver fails and panics with Degraded Array Date: Sat, 30 May 1998 03:15:38 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.1960.3) Content-Type: text/plain Sender: owner-freebsd-current@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > -----Original Message----- > From: Simon Shapiro [mailto:shimon@simon-shapiro.org] [SNIP] > At this point, the load on > the system will > reach 140-400 (we run the tests against RAID-0 and RAID-1, the > performance differs) >From my quick review of the replies of FreeBSD DPT RAID users, all of them appear to be using their arrays in RAID-0 or RAID-1 configurations. According to Simon's test procedure for his releases (portion copied above), he too only uses the DPT RAID-0 and RAID-1 features. In my setup, I'm using both RAID-5 and RAID-1. I have yet to have a drive failure on the RAID-1 array (*knock on wood*), the problems I saw were with the RAID-5 array and rebuilds. *PERHAPS* the key point is that the driver developer hasn't tested the FreeBSD DPT driver with a RAID-5 array. Perhaps not. What is clear from my prior post (the really long one) is that in my configuration the DPT driver or some other FreeBSD software component does not correctly deal with the DPT hardware doing a background rebuild. I'm going to try to obtain another DPT card and setup another small array for further testing. -Troy Cobb Circle Net, Inc. http://www.circle.net To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message