Date: Mon, 04 Jul 2011 12:21:11 -0700 From: Matthew Jacob <mj@feral.com> To: freebsd-fs@freebsd.org Subject: Re: Are thumpers still interesting in 2011 ? (raidz3 on x4500 @ 3.0gbps ...) Message-ID: <4E1212A7.70405@feral.com> In-Reply-To: <1309793921.2618.YahooMailRC@web120016.mail.ne1.yahoo.com> References: <1309793921.2618.YahooMailRC@web120016.mail.ne1.yahoo.com>
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On 7/4/2011 8:38 AM, George Sanders wrote: > > If I understand correctly, the interesting thing about a Sun x4500 (a "thumper") > is that every one of the 48 disks has a direct path to the system board, > allowing for full, independent throughput from every single drive. > > The downside, in 2011, is that it is a SATA2 system @ 3.0gbps. > > So, is this still an interesting system ? Is it still difficult to put together > a system with 48 independent paths to the board, like the Thumper ? > > Assuming a raidZ3 configuration, does that drive independence help me more than > being stuck at 3.0gbps hurts me ? Or would a "modern" system with a more > typical drive contention scheme, but running at 6.0gbps, be superior ? > > J IMO, until you go with flash, even 1.5Gbps is more than adequate, particularly for independent busses. I mean, you're not going to really make use of speeds greater than rotational+density, right?
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