Date: Tue, 16 Jul 2002 08:38:11 -0600 From: "Elliot Finley" <efinleywork@efinley.com> To: "Tortise@Paradise" <tortise@paradise.net.nz>, "Andrew P. Lentvorski" <bsder@mail.allcaps.org>, "Glen Mehn" <glen@burningman.com> Cc: <freebsd-stable@freebsd.org> Subject: Re: Poor Mans Software raid 1 on root partition? Message-ID: <00a001c22cd6$694888e0$035ad70a@PriceDMSDoc> References: <20020715225138.V82789-100000@mail.allcaps.org> <011c01c22c8e$8e6d6f70$0900a8c0@P1200n>
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Here is what I do to make a bootable backup of my running system. #!/bin/sh # #ad2 # cd / /sbin/umount /mnt /sbin/fdisk -BI ad2 /sbin/disklabel -w -r -B ad2s1 auto /sbin/disklabel -r ad2 > /usr/local/etc/backups/disk.label /bin/echo 'a: 256M 0 4.2BSD' >> /usr/local/etc/backups/disk.label /bin/echo 'b: 1G * swap' >> /usr/local/etc/backups/disk.label /bin/echo 'e: 30G * 4.2BSD' >> /usr/local/etc/backups/disk.label /bin/echo 'f: * * 4.2BSD' >> /usr/local/etc/backups/disk.label /sbin/disklabel -R -B ad2s1 /usr/local/etc/backups/disk.label /bin/rm /usr/local/etc/backups/disk.label /sbin/newfs -U /dev/ad2s1a /sbin/newfs -U /dev/ad2s1e /sbin/newfs -U /dev/ad2s1f /sbin/mount -rw /dev/ad2s1a /mnt cd /mnt /sbin/dump -0f - / | /sbin/restore -rf - cd / /sbin/umount /mnt /sbin/mount -rw /dev/ad2s1e /mnt cd /mnt /sbin/dump -0f - /usr | /sbin/restore -rf - cd / /sbin/umount /mnt /sbin/mount -rw /dev/ad2s1f /mnt cd /mnt /sbin/dump -0f - /var | /sbin/restore -rf - cd / /sbin/umount /mnt # # END # Elliot ----- Original Message ----- From: "Tortise@Paradise" <tortise@paradise.net.nz> To: "Andrew P. Lentvorski" <bsder@mail.allcaps.org>; "Glen Mehn" <glen@burningman.com> Cc: <freebsd-stable@freebsd.org> Sent: Tuesday, July 16, 2002 12:03 AM Subject: Re: Poor Mans Software raid 1 on root partition? > > > You can get a 3ware 7210 for $120: http://newegg.com > > > > > > it'll save you a lOT of time and heartache, and it's not that much $$... > > > > True, but if that 3ware quits making those cards and your card goes, your > > data is completely lost. And what if you choose not to upgrade each time > > 3ware spins the cards? How much testing does 3ware do against say the > > 6000 series? Can I take my drives on my 68XX card and plug them into a > > 78XX card and have them work? What about if 3ware creates an 88XX series? > > > > One significant advantage to software RAID is the fact that you can still > > extract your data from the disk even if you have to completely transplant > > the disks to different hardware. > > mmmm > > I think what I want to achieve is a second SCSI disc, which is regularly > "backed up to" in some fashion, although in less than real time be OK. (vis > a vis RAID) so long as it is a bootable reliable "backup" with a > controllable interval backup. (Also avoids the hardware reliance. I have > one machine (W2000) which has a backup RAID card so it can be got running > again quickly......without worrying about sourcing another card..... Clearly > this is undesirable...) > > Does anyone do this? > > Regards > David Hingston MB ChB MBA > _________________________________________________________________________ > tortoise@paradise.net.nz > http://hingston.yi.org/ > http://pcmc.yi.org/ > If you seek a digitally signed response please advise. > If you received a warning on reading this e-mail, please go to > http://www.baycorpid.com/settings/email.asp?CA=healthcert to update your > settings > > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-stable" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message
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