Date: Mon, 22 Jun 1998 13:41:38 -0700 (PDT) From: Chris Parry <laotzu@juniper.net> To: Tom <tom@sdf.com> Cc: alex@nac.net, Simon Shapiro <shimon@simon-shapiro.org>, freebsd-SCSI@FreeBSD.ORG Subject: RE: DPT support binaries - How to Setup Message-ID: <Pine.NEB.3.96.980622133058.15968U-100000@leaf.juniper.net> In-Reply-To: <Pine.BSF.3.95q.980622124956.2431A-100000@misery.sdf.com>
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> > It is when the array is in degraded mode, and you try to boot. > > No. Done that here several times. > > However, you can't boot if the array is dead (RAID5 with two failed > drives) but that goes without saying. I've seen an interesting scenario > where a rebuild caused a marginal drive to fail, so you always want to try > at least two simulated failures before bringing a new server online. It was my understanding that Alex was talking about a RAID-0 array (originally), which is the concatenated array (no redunancy). I definitely plan to trash this machine and see how it responds before bringing online for production work :) Anyway I'd like to bounce that architechure off of the group. First my goal is to have a RAID-1 mirror cvs depsitory for my company and want this machine to be rock stable. As I understand it, I can't really take two disks, install dos on one of them and then mirror them. So I was going to take two identical IDE drives, install DOS on a small partition, and then the FreeBSD OS on the rest of it. On the second IDE controller (so they are both masters on thier respective channels) have this disk be the target of a daily lowlevel dd of the the first disk. Then have the DPT controller be doing real RAID-1 on the cvs repository. Is there another way you all would recommend? Perhaps just doing everything from floppy and then RAID-1 the scsi drives (and just forget IDE), then install DOS and Freebsd? Also, when a drive fails (or I unplug it), will it only log to /var/log/messages? Anyone have an automated response mechanism installed to notify of disk failure? Thanks, -chris To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message
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