Date: Mon, 18 Aug 1997 21:09:21 -0700 (PDT) From: Doug White <dwhite@gdi.uoregon.edu> To: "Amir Y. Rosenblatt" <amir@i33.com> Cc: questions@FreeBSD.ORG Subject: Re: Bootable hardware RAID solutions? Message-ID: <Pine.BSF.3.96.970818210633.2488G-100000@localhost> In-Reply-To: <19970818152904.21746@i33.com>
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On Mon, 18 Aug 1997, Amir Y. Rosenblatt wrote: > I'm preparing to rebuild my FreeBSD 2.2.2 box and want to make it somewhat > more fault-tolerant than it is now. I'm interested in using a Mylex > SCSI-SCSI RAID card (in an enclosure with apair of hot-swappable disks) to > do mirroring and I'm wondering if such a device is compatible with FreebD > 2.2.2-stable (I would assume it is since it just sits on the SCSI chain > and pretends to be a disk) and if I'd be able to actually boot my system > from that sort of RAID (i.e. is it transparent enough to pretend to be my > boot disk or do I need to use some other disk for that and just stick > everything else on it?)? I don't believe Mylex hardware is supported, unless it emulates something else. DPT makes RAID adapters and they do have a FreeBSD driver (not shipped w/ FreeBSD but easily installed). Whether such a disk system is bootable or not is a function of the controller. I would assume that it would support something like that since as you mention, a RAID array looks like a big disk to the rest of the system. You might also look at ccd if you don't need hot-swappability. It can be configured to do mirroring if you're using identical disks, and it can do striping as well. See ccd(4). Doug White | University of Oregon Internet: dwhite@resnet.uoregon.edu | Residence Networking Assistant http://gladstone.uoregon.edu/~dwhite | Computer Science Major Spam routed to /dev/null by Procmail | Death to Cyberpromo
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