From owner-freebsd-hackers@FreeBSD.ORG Tue Jul 15 06:26:26 2003 Return-Path: Delivered-To: freebsd-hackers@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id B47C037B401 for ; Tue, 15 Jul 2003 06:26:26 -0700 (PDT) Received: from dahlia.noc.ucla.edu (dahlia.noc.ucla.edu [169.232.46.11]) by mx1.FreeBSD.org (Postfix) with ESMTP id 077B243F85 for ; Tue, 15 Jul 2003 06:26:26 -0700 (PDT) (envelope-from shah@ucla.edu) Received: from orchid.noc.ucla.edu (orchid.noc.ucla.edu [169.232.48.12]) by dahlia.noc.ucla.edu (8.12.8p1/8.12.8) with ESMTP id h6FDQPhE013468 for ; Tue, 15 Jul 2003 06:26:25 -0700 Received: from ucla.edu (dhcp246.rip.ucla.edu [149.142.110.246]) (authenticated bits=0) by orchid.noc.ucla.edu (8.12.8p1/8.12.8) with ESMTP id h6FDQPv9030218 for ; Tue, 15 Jul 2003 06:26:25 -0700 Date: Tue, 15 Jul 2003 06:26:24 -0700 Mime-Version: 1.0 (Apple Message framework v552) Content-Type: text/plain; charset=US-ASCII; format=flowed From: Sumit Shah To: freebsd-hackers@freebsd.org Content-Transfer-Encoding: 7bit Message-Id: X-Mailer: Apple Mail (2.552) X-Scanned-By: MIMEDefang 2.25 / SpamAssassin 2.43 / mail.ucla.edu X-Probable-Spam: no X-Spam-Hits: -1.3 Subject: RAID and NFS exports (Possible Data Corruption) X-BeenThere: freebsd-hackers@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Technical Discussions relating to FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 15 Jul 2003 13:26:27 -0000 FreeBSD hackers, Here is a message I sent to freebsd-questions and I was hoping I could get some help debugging this. Thanks > FYI the only way I could recover the partitions semi successfully was > rebuilding the arrays identically and then use gpart to recover the > partition info. This would last for anywhere between 1-5 hours before > the array would get broken. The only thing that changed on both > systems when things started acting up was the addition of the line to > /etc/exports. > > What would be the most appropriate list to further get info on to the > cause of this. My best guess is there is a glitch in the HPT374 > controller or a bug in the FreeBSD driver. > > Thanks, > Sumit > > > On Friday, July 11, 2003, at 03:34 PM, Sumit Shah wrote: > >> Dear FreeBSD gurus, >> >> I apologize in advance if this is not the most appropriate list to >> post this to, but this seems the best that I can find. Here is my >> situation, we have an Abit AT7 motherboard with onboard RAID >> (HPT374). It has worked beautifully for us with FreeBSD 4.7 and then >> 4.8 for a good 8 months or so serving up NFS and Samba. This morning >> my /etc/exports looked something like >> >> /data6 machine1 machine2 -mapall=65534 >> /data8 machine1 machine2 -mapall=65534 >> >> I then added a line so it looked something like: >> >> /data6 machine1 machine2 -mapall=65534 >> /data8 machine1 machine2 -mapall=65534 >> /data6 -network 10.10.10 -mask 255.255.255.0 -mapall=65534 >> >> I sent a HUP to mountd and everything seemed to work fine. Then I >> started getting errors similar to: >> >> ad4: hard error reading fsbn 242727552 >> >> So I rebooted and the HPT374 controller was complaining that the >> first disk in the RAID-0 configuration failed. I thought this might >> be a bad disk, but we had an identical system with the same EXACT >> configuration and we started mountd on that with the same exports >> file from above. A minute or two later the same type of errors and >> same complaint by the HPT374 controller about the first disk in the >> RAID-0 array being bad. >> >> I was wondering if there is any, no matter how remote, possibility >> that by adding that third line to the exports file that the raid-0 >> got corrupted somehow and if so how to maybe reverse it. I have left >> everything else intact nothing has changed on the controller side or >> freebsd config. >> >> Just as a note, we are not using vinum, but using the created array >> (ar0) and formatting that as UFS. >> >> Thanks so much for getting thorugh this email! >> >> Sumit >> >> _______________________________________________ >> freebsd-questions@freebsd.org mailing list >> http://lists.freebsd.org/mailman/listinfo/freebsd-questions >> To unsubscribe, send any mail to >> "freebsd-questions-unsubscribe@freebsd.org" >> > > _______________________________________________ > freebsd-questions@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-questions > To unsubscribe, send any mail to > "freebsd-questions-unsubscribe@freebsd.org" >