Date: Mon, 5 Feb 2001 13:20:42 -0500 From: "Kurt J. Lidl" <lidl@pix.net> To: Matt Dillon <dillon@earth.backplane.com>, "Michael C . Wu" <keichii@iteration.net> Cc: Mitch Collinsworth <mitch@ccmr.cornell.edu>, hackers@FreeBSD.ORG, fs@FreeBSD.ORG Subject: Re: Extremely large (70TB) File system/server planning Message-ID: <20010205132042.A324@pix.net> In-Reply-To: <200102051750.f15HoZ021657@earth.backplane.com>; from Matt Dillon on Mon, Feb 05, 2001 at 09:50:35AM -0800 References: <20010205100016.C97400@peorth.iteration.net> <Pine.LNX.4.10.10102051146300.22516-100000@ruby.ccmr.cornell.edu> <20010205112420.A98288@peorth.iteration.net> <200102051750.f15HoZ021657@earth.backplane.com>
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On Mon, Feb 05, 2001 at 09:50:35AM -0800, Matt Dillon wrote: > :70TB is the size of the sum of all files, access or no access. > :(They still want to maintain accessibility even though the chances are slim.) > > This doesn't sound like something you can just throw together with > off-the-shelf PCs and still have something reliable to show for it. > You need a big honking RAID system - maybe a NetApp, maybe something > else. You have to look at the filesystem and file size limitations > of the unit and the client(s). NetApp's biggest box can "only" handle 6TB of data, currently, using the latest and greatest software. They claim (and I believe them) that 12TB will be the limit later this year. > So FreeBSD could be used as an NFS client, but probably not a server > for your application. Considering the number of disks you need to > manage, something like a NetApp or other completely self contained > RAID-5-capable system for handling the disks is mandatory. Netapps are actually RAID-4 (dedicated parity disk), not RAID-5 (parity data is recorded across all drives). -Kurt To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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