From: David Greaves <david@dgreaves.com>
To: "Scott T. Smith" <scott@gelatinous.com>
Cc: Mikael Abrahamsson <swmike@swm.pp.se>,
Jim Buttafuoco <jim@contactbda.com>,
linux-raid@vger.kernel.org
Subject: Re: 1x 3ware controllers vs. 2x 3ware controllers
Date: Sun, 01 Aug 2004 20:28:04 +0100 [thread overview]
Message-ID: <410D4444.8000302@dgreaves.com> (raw)
In-Reply-To: <1091383022.11789.17.camel@tinny.home.foo>
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Scott T. Smith wrote:
| On Sun, 2004-08-01 at 08:24, Mikael Abrahamsson wrote:
|
|>On Sun, 1 Aug 2004, Jim Buttafuoco wrote:
|>
|>
|>>I am switching all of my 3ware controllers over to Adaptec SATA raid
|>>controllers. I am getting better performance with them. Jim
|>
|>I am quite curious about the 16port SATA controller Adaptec has now. Do
|>you have any filesystem write figures for this controller under linux and
|>ext3?
|
|
| One main problem with the 16port controller, at least in JBOD mode, is
| that there is not enough PCI bandwidth to fill the disks if you do large
| writes. Thus two separate 8port controllers, on separate PCI busses,
| should yield higher performance.
|
| OTOH, if you're doing small ops, or RAID1, it will probably be fine.
|
| (disclaimer -- I haven't tried the Adaptec boards yet, but they're on my
| list, along with Highpoint's)
|
| Scott
Highpoint have a multi port PCI-X card out (but no open drivers support it)
Are there any others multi-sata PCI-X cards?
I'm thinking about building a 2Tb SW RAID but will wait a few months
because I want PCI-X or similar to get the bandwidth to the gigabit card.
David
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next prev parent reply other threads:[~2004-08-01 19:28 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-30 3:53 1x 3ware controllers vs. 2x 3ware controllers Adam Hunt
2004-07-30 4:50 ` Scott T. Smith
2004-07-30 6:45 ` Luca Berra
2004-07-30 7:15 ` Mark Watts
2004-07-30 7:22 ` Mark Watts
2004-07-30 8:14 ` Scott T. Smith
2004-07-30 15:00 ` Marc Bevand
2004-07-30 16:17 ` Mark Watts
2004-07-30 23:53 ` Jim Buttafuoco
2004-07-31 8:49 ` Mikael Abrahamsson
2004-07-31 14:24 ` Jon Lewis
2004-07-31 16:28 ` Mikael Abrahamsson
2004-07-31 16:42 ` Mark Watts
2004-07-31 17:40 ` Jurriaan
2004-08-01 7:00 ` Mikael Abrahamsson
2004-08-01 7:08 ` Gordon Henderson
2004-08-01 9:18 ` Mikael Abrahamsson
2004-08-01 9:51 ` Mark Watts
2004-08-01 12:11 ` Mikael Abrahamsson
2004-08-01 15:01 ` Mark Watts
2004-08-01 15:10 ` Jim Buttafuoco
2004-08-01 15:27 ` Mikael Abrahamsson
2004-08-01 15:33 ` Mark Watts
2004-08-01 17:18 ` Gordon Henderson
2004-08-02 12:54 ` Mark Watts
2004-08-02 13:04 ` Gordon Henderson
2004-08-02 9:40 ` Mark Watts
2004-08-03 1:58 ` [RAID] " Julian Cowley
2004-08-03 2:05 ` Definition of hotswap, was " Scott T. Smith
2004-08-03 11:55 ` Tim Small
2004-08-22 17:52 ` Maurice Hilarius
2004-08-03 11:47 ` Software vs. Hardware RAID Tim Small
2004-08-03 15:58 ` Ricky Beam
2004-08-01 15:06 ` 1x 3ware controllers vs. 2x 3ware controllers Jim Buttafuoco
2004-08-01 15:24 ` Mikael Abrahamsson
2004-08-01 17:57 ` Scott T. Smith
2004-08-01 19:28 ` David Greaves [this message]
2004-08-01 22:32 ` Mikael Abrahamsson
2004-08-02 18:02 ` Mark Hahn
2004-08-02 18:07 ` Scott T. Smith
2004-08-01 17:53 ` Scott T. Smith
2004-08-02 10:22 ` what is the best multi-SATA-controller-on-a-single-board out there? Tim Small
2004-08-02 21:09 ` Jon Lewis
2004-08-02 22:48 ` robin-lists
2004-08-03 8:55 ` Tim Small
2004-08-03 17:45 ` Jon Lewis
2004-08-04 8:24 ` Tim Small
2004-07-31 13:11 ` 1x 3ware controllers vs. 2x 3ware controllers Joshua Baker-LePain
-- strict thread matches above, loose matches on Subject: below --
2004-07-30 10:16 Mark Watts
2004-07-30 12:59 ` Joshua Baker-LePain
2004-07-30 13:24 ` Mark Watts
2004-07-30 13:30 ` Joshua Baker-LePain
2004-07-31 8:44 ` Mikael Abrahamsson
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