Date: Thu, 16 Aug 2001 08:23:49 +0200 (CEST) From: Micke Josefsson <mj@isy.liu.se> To: Mike Meyer <mwm@mired.org> Cc: questions@FreeBSD.ORG, Kory Hamzeh <kory@avatar.com> Subject: Re: Backup suggestions Message-ID: <XFMail.010816082349.mj@isy.liu.se> In-Reply-To: <15226.23872.500433.814891@guru.mired.org>
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On 15-Aug-01 Mike Meyer wrote: > Kory Hamzeh <kory@avatar.com> types: >> I am setting up a system running 4.3-RELEASE. This system will have two IDE >> drives, each being about 30G. I would like to write a cron jobs to copy all >> of the filesystems from the first physical drive to the second one every >> night. I want to make sure the second drive is an exact duplicate of the >> first, so in case of a crash, I can make the second drive the master and >> boot off of it. >> >> I will probably have 3 filesystems and a swap partition on the first drive. >> I know a raid controller with do this for me, but I prefer to keep the >> hardware are simple as possible, mostly for reliability reasons. > > How about software raid? After all, that's pretty much what you're > trying to do. FreeBSD comes with raid software - vinum. Check out it's > man page. > > <mike Vinum does exactly this and you will not notice that a disk crashed since the machine just keeps running from the functional disk! Beware that the recovery procedures in case of a failure are not very well documented. Apparently there is a retry-config option nowadays which will retry reading from the disk a couple of times before deciding it is dead. That can save a LOT of work... /M ---------------------------------- Michael Josefsson, MSEE mj@isy.liu.se This message was sent by XFMail running on FreeBSD 4.3-STABLE ---------------------------------- To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-questions" in the body of the message
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