Date: Thu, 04 Mar 2004 21:08:51 +1000 From: Anubis <anubis357@optusnet.com.au> To: Toomas Aas <toomas.aas@raad.tartu.ee> Cc: freebsd-questions@freebsd.org Subject: Re: backup Message-ID: <40470E43.7020502@optusnet.com.au> In-Reply-To: <200403031359.i23DxgDb003853@lv.raad.tartu.ee> References: <!~!UENERkVCMDkAAQACAAAAAAAAAAAAAAAAABgAAAAAAAAAYzSznVi3fkWJYCR3viDFqMKAAAAQAAAA30CINh4UKEm/uYMfcCdnMgEAAAAA@planet-richard.com> <200403031359.i23DxgDb003853@lv.raad.tartu.ee>
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Toomas Aas wrote: >Hi! > >On Tue, 24 Feb 2004 9:32 am, Richard Beyer wrote: > > >>>We're currently doing a back up of a FreeBSD 4.9 (2) server by >>>plugging a USB external drive in and then doing >>>cp /dev/ad0 /dev/da0 >>> >>>This takes about 30 hours, (USB 1). >>> >>> > >To which anubis answered: > > > >>Why not use removeable drive trays with straight pata drives? >> >> > >Few months ago I did some research on this and found that not every >removable IDE drive bay supports hot-swapping - the ones that do are >somewhat more expensive. I myself ended up using external FireWire >drives, which have worked out quite well (and the speed is much better >than USB with FreeBSD 4.9): > >Toomas Aas wrote: > > > >>To which anubis answered: >> >> >> >>>Why not use removeable drive trays with straight pata drives? >>> >>> >> >>Few months ago I did some research on this and found that not every >>removable IDE drive bay supports hot-swapping - the ones that do are >>somewhat more expensive. I myself ended up using external FireWire >>drives, which have worked out quite well (and the speed is much better >>than USB with FreeBSD 4.9): >> >> >> > I am using removeable drives and trays. I am using the plain jane > vipower ones as seen here. > http://www.vipower.com/product/MobileRack/3fan_mobile_rack/vp_70/vp_7010ls3fu.htm > They are connected to a promise 2 channel ide card as seen here > http://www.promise.com/product/product_detail_eng.asp?productId=11&familyId=3 > The drives are 200GB seagates. > > Neither of these is rated as hot swappable as far as I know. We are > using them as "hot swappable". > To us this means that we unmount the drive, atacontrol detatch, power > off then yank out without > powering down the server. > > We have been using this as a backup method successfully for over a > month now in production and > before that for a couple of months in testing. We havent noticed any > problems so far. > I hesitate in calling it a success at this stage. Ask me in 2 months > time when I see how the drives handle > being lugged off site daily. > > When I looked at it I took the hot swapping features to be needed only > for windows. > If you are worried about burning out something use an ide card like we > are so if smoke comes out > you can bin it and not the motherboard. > > The cost wasnt that great. In Aussie dollars the trays were $30, the > card about $60. > The machine is currently running 5.1. > > > > > >
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