From: Hannes Dorbath <light@theendofthetunnel.de>
To: Justin Piszcz <jpiszcz@lucidpixels.com>
Cc: Hannes Dorbath <light@theendofthetunnel.de>,
Gabor Gombas <gombasg@sztaki.hu>,
linux-ide-arrays@lists.math.uh.edu, xfs@oss.sgi.com,
linux-raid@vger.kernel.org, linux@vger.kernel.org
Subject: Re: Software RAID5 Horrible Write Speed On 3ware Controller!!
Date: Wed, 18 Jul 2007 13:37:15 +0200 [thread overview]
Message-ID: <469DFB6B.2000103@theendofthetunnel.de> (raw)
In-Reply-To: <Pine.LNX.4.64.0707180732140.7659@p34.internal.lan>
On 18.07.2007 13:32, Justin Piszcz wrote:
> Yes I agree here, but I guess my question is why is SW RAID5 so slow on
> the 3ware card?
I think the controller does disable the drives write cache when exported
unconfigured. It does always disable, unless you put the drive in a unit
and explicit set the profile to `Performance'.
--
Regards,
Hannes Dorbath
next prev parent reply other threads:[~2007-07-18 11:37 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-18 10:23 Software RAID5 Horrible Write Speed On 3ware Controller!! Justin Piszcz
2007-07-18 10:49 ` Hannes Dorbath
2007-07-18 16:26 ` Justin Piszcz
2007-07-18 17:18 ` Bryan J. Smith
2007-07-18 10:59 ` Al Boldi
2007-07-18 12:01 ` Justin Piszcz
2007-07-18 11:05 ` Gabor Gombas
2007-07-18 11:19 ` Justin Piszcz
2007-07-18 11:26 ` Hannes Dorbath
2007-07-18 11:32 ` Justin Piszcz
2007-07-18 11:37 ` Hannes Dorbath [this message]
2007-07-18 11:38 ` Justin Piszcz
2007-07-18 12:51 ` Robin Hill
2007-07-18 14:26 ` Gabor Gombas
2007-07-18 11:17 ` Giuseppe Ghibò
2007-07-18 11:20 ` Justin Piszcz
2007-07-18 17:57 ` Bryan J. Smith
2007-07-18 17:57 ` Bryan J. Smith
2007-07-18 11:26 ` Sander
2007-07-18 11:35 ` Justin Piszcz
2007-07-18 12:09 ` Sander
2007-07-18 12:19 ` Justin Piszcz
2007-07-18 13:32 ` Sander
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