Date: Sun, 9 Feb 1997 19:31:41 -0500 (EST) From: Brian Tao <taob@risc.org> To: FREEBSD-ISP-L <freebsd-isp@freebsd.org> Subject: Re: SCSI-to-SCSI RAID controllers (was "RAID ? ") Message-ID: <Pine.BSF.3.95.970209192438.18693B-100000@alpha.risc.org> In-Reply-To: <Pine.NEB.3.93.970209133313.15445I-100000@mars.dnai.com>
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On Sun, 9 Feb 1997, Dror Matalon wrote:
>
> After a while though I felt that there isn't yet a mature solution
> that works well with FreeBSD and so we spent the extra $ and got a
> Netapp (www.netapp.com). Cost $20K for 18 Usable Gigs, but we're
> very happy with it.
SCSI-to-SCSI RAID controllers don't have to be OS-specific. The
CMD controller is quite nice and appears as a single device to
FreeBSD. Absolutely no tweaking was necessary with FreeBSD. If you
have the bucks, I'd suggest going that route. A high-end subsystem
with hot/warm spares, auto-rebuild, multiple host support and a couple
hundred megs of cache ends up costing roughly the same as a NetApp and
you can plug it directly into your FreeBSD servers. NetApps are more
scalable if you have a farm of servers that need to share the same
filesystem though.
If you can't afford to pay over $1/meg for storage, the ccd driver
will give you excellent performance and the ability to see one, large
filesystem, with the option of disk mirroring (but no parity
information).
--
Brian Tao (BT300, taob@risc.org)
"Though this be madness, yet there is method in't"
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