From owner-freebsd-isp Fri Jun 11 9:39:59 1999 Delivered-To: freebsd-isp@freebsd.org Received: from sss80205.schwab.com (sss00205.schwab.com [162.93.15.188]) by hub.freebsd.org (Postfix) with ESMTP id 79C83154B7 for ; Fri, 11 Jun 1999 09:39:56 -0700 (PDT) (envelope-from Andreas.Pleschutznig@Schwab.COM) Received: by othbh/sss80205.schwab.com v1.000dar for qnum MAA13610 Received-Date: Fri, 11 Jun 1999 12:36:03 -0400 (EDT) Received: from s0001asf.schwab.com(162.93.32.201) by sss80205.schwab.com via smap (V4.2) id xma013066; Fri, 11 Jun 99 12:35:04 -0400 Received: (from root@localhost) by ihop sf id MAA18577; Fri, 11 Jun 1999 12:38:49 -0400 (EDT) Received: ( Schwab Email ) by copymail sf with ESMTP id MAA18523; Fri, 11 Jun 1999 12:38:46 -0400 (EDT) Received: by n2101pmx.cdc.schwab.com with Internet Mail Service (5.5.2448.0) id ; Fri, 11 Jun 1999 12:34:00 -0400 Message-ID: <11585F032846CF11867900805FE2A57706D616DD@N1002SMX.nt.schwab.com> From: "Pleschutznig, Andreas" To: "'joe@vpop.net'" , Chris Cook Cc: freebsd-isp@FreeBSD.ORG Subject: RE: redunancy without RAID Date: Fri, 11 Jun 1999 12:21:06 -0400 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2448.0) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-freebsd-isp@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org Pull the power from the drive. That way the drive stops working without hurting the bus. You are perfectly save, your drive will not have any damages(other than logical) from that procedure. Andy -- Andreas Pleschutznig Sr. Unix System Admin E-mail: Andreas.Pleschutznig@Schwab.com Phone: (415) 636 0493 Cell: (415) 850 7996 Brick: 260 Pager: http://www.nextel.com/paging/indivpage.html Warning: All e-mail sent to this address will be received by the Charles Schwab & Co., Inc. corporate e-mail system and is subject to archival and review by someone other than the recipient. > -----Original Message----- > From: joe@vpop.net [mailto:joe@vpop.net] > Sent: Friday, June 11, 1999 8:58 AM > To: Chris Cook > Cc: freebsd-isp@FreeBSD.ORG > Subject: Re: redunancy without RAID > > > > Do you know the best way to test if the mirror really works > if a drive goes > bad? Pull the power to the drive as it's running? Pull the > scsi cable to the > drive as it's running? Will this cause physical damage to the drive? > > Thanks, > -joe > > On Thu, 03 Jun 1999 01:44:36 -0500, Chris Cook > wrote: > > > We have been running VINUM here at our ISP for quite > some time > >now. It works great... we have our /usr and /var partitions > setup on 2 > >different mirrored volumes. The overhead is low and access times are > >great. With VINUM, if one of the mirrored disks go out, the > volume should > >not crash . As far as ccd goes, I have never used it, > but I believe > >both ccd and VINUM will not mirror a boot partition (I know > VINUM won't > >yet). The VINUM was difficult to install, only because I > was trying to use > >the port that comes with FBSD 3.1. If you go this route, I suggest > >downloading the lastest version and you shouldn't have > problems. Hope this > >helps... > > -- > NewsHub: http://www.NewsHub.com/tech/ | > MultiTrace: http://www.MultiTrace.com/ | Explore Your Net! > DomainSurfer: http://www.DomainSurfer.com/ | > > > To Unsubscribe: send mail to majordomo@FreeBSD.org > with "unsubscribe freebsd-isp" in the body of the message > To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-isp" in the body of the message