Subject: Re: 3ware's tw_cli management tool for twa(4) now runs on NetBSD
To: Emmanuel Dreyfus <>
From: Bill Studenmund <>
List: current-users
Date: 09/25/2006 19:10:16
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On Sun, Sep 24, 2006 at 10:38:11AM +0200, Emmanuel Dreyfus wrote:
> Hi
> I just committed various fixes to COMPAT_FREEBSD and twa(4) that make
> 3ware's command line tool (tw_cli) working with my 9550SX boards.=20
> My goal was to obtain the ability of attaching a new disk without having
> to reboot to 3ware BIOS setup. It's now fulfilled. I think I'll just
> export the disks as "single" unit and use RAIDframe on it (comments
> welcome on this practice: what are the benefits of using the hardware
> RAID?)=20

One big advantage is performance. All of the raid processing is not=20
handled by the core CPU. When you figure in RAID5's XOR and associated=20
data cache impact, it can really make a difference.

Also, if you aren't using the hardware RAID capabilities, you've paid way=
too much for a SATA controler card. :-)

Take care,


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