From: Tejun Heo <htejun@gmail.com>
To: Andre Tomt <andre@tomt.net>
Cc: Marc Perkel <marc@perkel.com>, linux-kernel@vger.kernel.org
Subject: Re: Hardware vs. Software Raid Speed
Date: Thu, 24 Aug 2006 02:47:21 +0900 [thread overview]
Message-ID: <44EC94A9.4010903@gmail.com> (raw)
In-Reply-To: <44EC02FD.7050207@tomt.net>
Andre Tomt wrote:
> Marc Perkel wrote:
>> Running Linux on an AMD AM2 nVidia chip ser that supports Raid 0
>> striping on the motherboard. Just wondering if hardware raid (SATA2)
SATA2 has nothing to do with hardware RAID.
>> is going to be faster that software raid and why?
>
> Beeing a consumer type board (AM2), the "raid on the motherboard" is in
> 99.999% of the cases just software raid implemented in their Windows
> drivers, a bootup setup screen plus some BIOS magic to get the OS booting.
And, yeah, they're all software RAID. Also, there isn't much to be
gained from making RAID0/1 hardware. The software overhead isn't that
big. For RAID5, having XOR done in hardware helps.
--
tejun
next prev parent reply other threads:[~2006-08-23 17:48 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-08-23 6:52 Hardware vs. Software Raid Speed Marc Perkel
2006-08-23 7:25 ` Andre Tomt
2006-08-23 8:39 ` Alistair John Strachan
2006-08-23 17:47 ` Tejun Heo [this message]
2006-08-23 17:55 ` Marc Perkel
2006-08-24 5:13 ` Joel Jaeggli
2006-08-23 19:42 ` Mario 'BitKoenig' Holbe
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=44EC94A9.4010903@gmail.com \
--to=htejun@gmail.com \
--cc=andre@tomt.net \
--cc=linux-kernel@vger.kernel.org \
--cc=marc@perkel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox