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From: Brendan Conoboy <blc@redhat.com>
To: david@lang.hm
Cc: Wakko Warner <wakko@animx.eu.org>,
	Lennart Sorensen <lsorense@csclub.uwaterloo.ca>,
	Neil Brown <neilb@suse.de>,
	linux-kernel@vger.kernel.org, linux-raid@vger.kernel.org
Subject: Re: limits on raid
Date: Mon, 18 Jun 2007 16:00:49 -0600	[thread overview]
Message-ID: <46770091.2080109@redhat.com> (raw)
In-Reply-To: <Pine.LNX.4.64.0706181453090.14890@asgard.lang.hm>

david@lang.hm wrote:
> yes, I'm useing promise drive shelves, I have them configured to export 
> the 15 drives as 15 LUNs on a single ID.

Well, that would account for it.  Your bus is very, very saturated.  If 
all your drives are active, you can't get more than ~7MB/s per disk 
under perfect conditions.

-- 
Brendan Conoboy / Red Hat, Inc. / blc@redhat.com

  reply	other threads:[~2007-06-18 22:00 UTC|newest]

Thread overview: 69+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-06-15  2:58 limits on raid david
2007-06-15  3:05 ` Neil Brown
2007-06-15  3:43   ` david
2007-06-15  3:58     ` Neil Brown
2007-06-15  9:13       ` David Chinner
2007-06-15 22:21         ` Neil Brown
2007-06-15 11:10       ` Avi Kivity
2007-06-15 16:23         ` Jan Engelhardt
2007-06-15 17:20           ` Avi Kivity
2007-06-15 21:59         ` Neil Brown
2007-06-16 17:23           ` Avi Kivity
2007-06-17 13:00           ` Andi Kleen
2007-06-18  4:57           ` David Chinner
2007-06-21  2:56             ` Neil Brown
2007-06-21  6:39               ` David Chinner
2007-06-21  6:45                 ` david
2007-06-21  8:59                   ` David Greaves
2007-06-21 17:00                   ` Mark Lord
2007-06-21 11:00                 ` David Chinner
2007-06-21 12:40               ` Mattias Wadenstein
2007-06-21 14:40                 ` Justin Piszcz
2007-06-21 16:48                 ` david
2007-06-21 18:30                 ` Martin K. Petersen
2007-06-21 20:08               ` Nix
2007-06-16  2:03       ` Wakko Warner
2007-06-16  3:47         ` Neil Brown
2007-06-16  4:40           ` Dan Merillat
2007-06-16  7:48           ` david
2007-06-16 13:38             ` David Greaves
2007-06-16 17:16               ` david
2007-06-17 17:16             ` Bill Davidsen
2007-06-18 17:20             ` Brendan Conoboy
2007-06-18 17:28               ` david
2007-06-18 18:03                 ` Lennart Sorensen
2007-06-18 18:12                   ` david
2007-06-18 18:33                     ` Lennart Sorensen
2007-06-18 18:40                       ` david
2007-06-18 19:11                         ` Brendan Conoboy
2007-06-18 20:52                           ` david
2007-06-18 21:46                             ` Wakko Warner
2007-06-18 21:56                               ` david
2007-06-18 22:00                                 ` Brendan Conoboy [this message]
2007-06-19 20:11                                 ` Lennart Sorensen
2007-06-19 20:51                                   ` david
2007-06-19 15:07                             ` Phillip Susi
2007-06-19 19:28                               ` david
2007-06-18 18:07                 ` Brendan Conoboy
2007-06-18 18:16                   ` david
2007-06-16 13:33           ` David Greaves
2007-06-17  1:44             ` dean gaudet
2007-06-21  3:01             ` Neil Brown
2007-06-21  8:49               ` David Greaves
2007-06-16 14:08           ` Wakko Warner
2007-06-17  1:47             ` dean gaudet
2007-06-17 13:28               ` Wakko Warner
2007-06-17 17:28                 ` dean gaudet
2007-06-17 19:30                   ` Wakko Warner
2007-06-17 19:54                     ` dean gaudet
2007-06-17 20:46                       ` david
2007-06-17 20:44                     ` david
2007-06-17 17:14       ` Bill Davidsen
2007-06-21 23:03         ` Bill Davidsen
2007-06-22  2:24           ` Neil Brown
2007-06-22  8:10             ` David Greaves
2007-06-22  9:51               ` david
2007-06-22 12:39                 ` David Greaves
2007-06-22 16:00                   ` Bill Davidsen
2007-06-22 16:55                     ` David Greaves
2007-06-22 18:41                     ` david

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