Date: Mon, 16 Jun 2008 17:19:43 +0400 From: Stanislav <stanislav@corp.n9.ru> To: "Johan Hendriks" <Johan@double-l.nl> Cc: freebsd-questions@freebsd.org Subject: Re: Move data from 3ware RAID-1 disk to MB disk Message-ID: <319048390806160619h3390fadfyf7e1ea4b85b3c077@mail.gmail.com> In-Reply-To: <57200BF94E69E54880C9BB1AF714BBCB5DDF04@w2003s01.double-l.local> References: <319048390806160513i57a85b47vcf8f1b1f141e161e@mail.gmail.com> <57200BF94E69E54880C9BB1AF714BBCB5DDF04@w2003s01.double-l.local>
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Dear Johan, But hetzner support told me that data will be lost if connect disk to motherboard controller: "If we connect the HDD's on the Mainboard-controller, they were detected as empty HDD, because the controller write the sectors in a other way, like the RAID-controler!" But I think that maybe 3ware writes their RAID table somewhere near MBR record. So maybe I have to rewrite MBR and that disk will work on motherboard controller? I have backups, but this is production system, and I want to switch to MB controller with minimal downtime. Kind Regards 2008/6/16 Johan Hendriks <Johan@double-l.nl>: > >>Hi, > >>I have FreeBSD 7.0 with 3ware 8006-2LP RAID-1 controller hosted at >>hetzner.de. > >>Now I want remove 3ware controller, and to stay with motherboard >>controller. Is it possible to do without data loss? >>I suggest to move one disk to motherboard controller, than boot via >>LAN to Linux rescue, and than do "dd" from 3ware to MB disk. >>Is it possible to do so or I will copy 3ware RAID table, and MB disk >>will not be bootable? > >>Kind Regards > > I freebsd detect the onboard controller and the drives on it, all you > need to do is to make sure /etc/fstab points to the right disks. > > Now it probberly points to /dev/twe0s1* and so on if your onboard > controller uses ad then it needs to be changed to /dev/da0s1* > > Make sure you have backups!!!!!!!!!!!!!!!!!!!!!! > > > Regards, > Johan > > > > >
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