From: "3tcdgwg3" <3tcdgwg3@prodigy.net>
To: Neil Brown <neilb@cse.unsw.edu.au>, James R Bamford <jim@jimtreats.com>
Cc: linux-raid@vger.kernel.org
Subject: Re: How safe is software RAID compared to how safe hardware RAID is!?
Date: Tue, 18 Nov 2003 16:23:54 -0800 [thread overview]
Message-ID: <012e01c3ae33$6cde29d0$cc07a8c0@neptune> (raw)
In-Reply-To: 16314.44161.438158.27514@notabene.cse.unsw.edu.au
>
> Some people find that their IDE controller works fine until they try
> to use RAID1. RAID1 hits multiple discs concurrently a lot, and some
> (few, specific) ide controllers don't appear to cope. You probably
> would not get that with hardware raid. You can with software raid
> because it is a "whole-system" thing.
>
>
Did I do anything wrong?
I didn't see RAID 1 hits multiple drives concurrently, specially for
reading.
I set up RAID 5, RAID 1 and single disk partitions on x86 machine,
kernel 2.4-18.
For 800 MB breading, RAID 5 take 2/3 of time used by single disk,
but RAID 1 take 1.1 of time used by single disk.
Thanks.
next prev parent reply other threads:[~2003-11-19 0:23 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-18 19:24 recommended sata controllers? Mark Hahn
2003-11-18 19:33 ` Andrew Hogue
2003-11-18 20:12 ` HELP.. how to remove a spare drive i accidently added James R Bamford
2003-11-18 22:38 ` Neil Brown
2003-11-18 23:12 ` How safe is software RAID compared to how safe hardware RAID is!? James R Bamford
2003-11-18 23:34 ` Neil Brown
2003-11-18 23:51 ` Franc Carter
2003-11-19 0:04 ` James R Bamford
2003-11-19 0:23 ` 3tcdgwg3 [this message]
2003-11-21 14:59 ` Eric Wood
2003-11-20 20:53 ` Tomi Orava
2003-11-20 23:38 ` Neil Brown
2003-11-18 23:39 ` Kourosh
2003-11-18 23:44 ` Frank Smith
2003-11-18 23:48 ` How safe is software RAID compared to how safe hardware RAID Michael
2003-11-19 7:56 ` How safe is software RAID compared to how safe hardware RAID is!? Luca Berra
2003-11-19 16:55 ` Bill Rugolsky Jr.
2003-11-28 6:04 ` HighPoint 1820 (8pt sata pcix, $170) Mark Hahn
2003-11-28 6:13 ` jlewis
2003-11-28 15:18 ` How to change RAID1 to NON_RAID (lilo problem) Mehrdad Ziaei
2003-11-28 19:47 ` HighPoint 1820 (8pt sata pcix, $170) Jeff Garzik
2003-11-19 20:19 ` How safe is software RAID compared to how safe hardware RAID Kanoa Withington
2003-11-19 22:28 ` Gordon Henderson
2003-11-21 14:02 ` How safe is software RAID compared to how safe hardware RAID is!? Rechenberg, Andrew
2003-11-21 14:24 ` Lars Marowsky-Bree
2003-11-18 22:05 ` Is my raid setup speed ok?! James R Bamford
2003-11-19 4:09 ` Guy
2003-11-19 13:56 ` James R Bamford
2003-11-19 16:49 ` Guy
2003-11-19 17:06 ` Matthew Mitchell
2003-11-19 19:52 ` Guy
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='012e01c3ae33$6cde29d0$cc07a8c0@neptune' \
--to=3tcdgwg3@prodigy.net \
--cc=jim@jimtreats.com \
--cc=linux-raid@vger.kernel.org \
--cc=neilb@cse.unsw.edu.au \
/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;
as well as URLs for NNTP newsgroup(s).