From: Neil Brown <neilb@cse.unsw.edu.au>
To: Lars Marowsky-Bree <lmb@suse.de>
Cc: Gewj <geweijin@sinosoft.com.cn>, linux-kernel@vger.kernel.org
Subject: Re: A puzzling thing about RAID5: syslogd write the log success but another process can not read the /var/log/messages
Date: Thu, 8 Apr 2004 09:13:22 +1000 [thread overview]
Message-ID: <16500.35602.13336.290506@cse.unsw.edu.au> (raw)
In-Reply-To: message from Lars Marowsky-Bree on Wednesday April 7
On Wednesday April 7, lmb@suse.de wrote:
> On 2004-04-07T21:24:01,
> Gewj <geweijin@sinosoft.com.cn> said:
>
> > hammm,tonight is funny because I got a puzzling thing just as....
> >
> > my setup is a two-scsi-disk raid5 configuration...
>
> Impossible. RAID5 requires at least three disks.
Wrong. RAID5 works fine with just two drives. Try it.
NeilBrown
(I admit that there isn't a lot of point doing raid5 with two drives
as raid1 should provide identical functionality with better
performance, but it makes an interesting base-line for performances
tests on N-drive arrays).
next prev parent reply other threads:[~2004-04-07 23:13 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-04-07 13:24 A puzzling thing about RAID5: syslogd write the log success but another process can not read the /var/log/messages Gewj
2004-04-07 14:51 ` Lars Marowsky-Bree
2004-04-07 23:13 ` Neil Brown [this message]
2004-04-09 1:49 ` Gewj
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