From owner-freebsd-hackers Tue Sep 26 10:42:34 2000 Delivered-To: freebsd-hackers@freebsd.org Received: from hermes.atrada.de (hermes.atrada.de [212.118.32.33]) by hub.freebsd.org (Postfix) with SMTP id E605037B422 for ; Tue, 26 Sep 2000 10:42:30 -0700 (PDT) Received: from erlangen01.atrada.de by hermes.atrada.de via smtpd (for hub.FreeBSD.org [216.136.204.18]) with SMTP; 26 Sep 2000 17:42:30 UT Received: (private information removed) Message-ID: <58A002A02C5ED311812E0050044517F00D25F0@erlangen01.atrada.de> From: Alexander Maret To: 'Keith Kemp' Cc: "'freebsd-hackers@freebsd.org'" Subject: AW: Frustration with SCSI system Date: Tue, 26 Sep 2000 19:42:13 +0200 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2650.21) Content-Type: text/plain Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG > -----Ursprungliche Nachricht----- > Von: Keith Kemp [mailto:kkemp@nwcr.net] > Gesendet: Freitag, 22. September 2000 00:29 > Cc: freebsd-hackers@FreeBSD.ORG; freebsd-isp@FreeBSD.ORG > Betreff: RE: Frustration with SCSI system > > > On the topic of Vinum, what do you guys do about the / > partion since it > appears that a vinum partion can not be the boot partion. We have a system here with two SCSI disks using vinum RAID1 to mirror them. To ensure that we can boot the system even of a / failure on the first disk. There is copy of the root partition on the second disk, so we can boot the system even if the first hd fails completely. As we don't want to copy the contents of the / partition on the first disk to the second disk on every change we do on it, we also mirror /etc. So there is nothing left on the root partition which changes regulary. Mirroring the /etc partition is a bit tricky, because you need some files at startup. On a 3.3-Stable system the only files you really need until /etc is remounted as a mirrored drive are: defaults/rc.conf rc.conf fstab gettytab login.conf rc ttys This shouldn't have changed until know. As you also want to be able to change these files when you remounted /etc I have hardlinks to these files in an /ETC directory. On the remounted /etc directory softlinks then point to the files in /ETC. In my opinion this is the smartest solution you get with vinum. You only have to copy the contents of the / partition of the first disk to the second disk if you change any of the files listed above or if you install a new kernel/new release of FreeBSD. Sorry for my bad english. Alexander Maret To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message