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Re: write cache on 3ware controller and XFS

To: Christophe Zwecker <doc@xxxxxxxxxx>
Subject: Re: write cache on 3ware controller and XFS
From: "Bryan J. Smith" <b.j.smith@xxxxxxxx>
Date: Tue, 05 Nov 2002 16:55:03 -0500 (EST)
Cc: "Bryan J. Smith" <b.j.smith@xxxxxxxx>, linux-xfs@xxxxxxxxxxx
In-reply-to: <1036532720.20193.22.camel@dumbo.zwecker.de>
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Quoting Christophe Zwecker <doc@xxxxxxxxxx>:
> the firmware is the one I dl from the 3ware page 1 week ago, when I
> installed the system, the kernel is 2.4.19, so I guess that shit fit.

Okay, you _probably_ have _too_new_ of a firmware for your driver!  If find the
stock kernel lags 3Ware by 6-12 months, and 3Ware almost always introduces a new
driver with each new firmware release.

I'd say you found your problem then.  Be sure to _always_ install the driver
with the firmware image you get from 3Ware.  They even include a Makefile to
make things easy.

Or don't you read things like READMEs???  ;-P

> yeah, mostly true, tho I need that for an ftp server, its unconvinient
> to guess how big a dir will get an "waste" a partition on it when the
> space wont be available to other dirs.

Perfect excuse to put those accounts on their own filesystem(s)!  ;-P

> Anyhow, I know now, I shall never enable the write cache again, i
> kinda pi.. me off to waste performance..well security goes first. Since its
> an ftp server speed is not all that important - the line aint THAT fast.

Again, you're firmware is probably _too_new_ for your driver.

> Anyone know where to get those tools to disable write cache on my IDE
> hds ? I hope I dont need windows for that...

You usually need to boot DOS to do so.  And you'll need to put them on a
standard ATA controller, as 3Ware Escalades hide them behind their ASIC.

-- 
Bryan J. Smith, E.I.            Contact Info:  http://thebs.org
A+/i-Net+/Linux+/Network+/Server+ CCNA CIWA CNA SCSA/SCWSE/SCNA
---------------------------------------------------------------
When people focus on recycling trees, the fastest regenerating
resource on the planet, you know the country's environmental
policy has one of the most misguided focuses it could have.




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