From: Alex Davis <alex14641@yahoo.com>
To: linux-raid@vger.kernel.org, ken.walker@manchester.ac.uk
Subject: re: Raid on USB2 ?
Date: Sun, 19 Feb 2006 07:36:42 -0800 (PST) [thread overview]
Message-ID: <20060219153642.53095.qmail@web50210.mail.yahoo.com> (raw)
>Anybody tried a Raid1 or Raid5 on USB2.
>
>If so did it crawl or was it usable ?
>
>Many thanks
>
>Ken :o)
I have a USB raid5 consisting of 4 200GB drives. hdparm -t on the md device
gives 42 MB/s, which is nearly twice as fast as the internal drive (this is
a laptop). Since the RAID is storing large files (smallest file is about 1.5
MB), I used a stripe size of 128 K, and specified '-T largefile' to mke2fs.
All the disks, USB-to-IDE converters, and the hub are in one ATX case. It's
used to store pics from hi-res digital cameras, and video from camcorders.
I've been using the RAID for 6 months with no problems.
I code, therefore I am
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next reply other threads:[~2006-02-19 15:36 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-19 15:36 Alex Davis [this message]
-- strict thread matches above, loose matches on Subject: below --
2006-02-17 10:54 Raid on USB2 ? Ken Walker
2006-02-17 11:03 ` Francois Barre
2006-02-17 14:30 ` Ewan Grantham
2006-02-18 1:11 ` Daniel Pittman
2006-02-18 9:48 ` PFC
2006-02-18 9:56 ` Gordon Henderson
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