From: David Chinner <dgc@sgi.com>
To: Neil Brown <neilb@suse.de>
Cc: Avi Kivity <avi@argo.co.il>,
david@lang.hm, linux-kernel@vger.kernel.org,
linux-raid@vger.kernel.org
Subject: Re: limits on raid
Date: Mon, 18 Jun 2007 14:57:59 +1000 [thread overview]
Message-ID: <20070618045759.GD85884050@sgi.com> (raw)
In-Reply-To: <18035.3009.568832.785308@notabene.brown>
On Sat, Jun 16, 2007 at 07:59:29AM +1000, Neil Brown wrote:
> Combining these thoughts, it would make a lot of sense for the
> filesystem to be able to say to the block device "That blocks looks
> wrong - can you find me another copy to try?". That is an example of
> the sort of closer integration between filesystem and RAID that would
> make sense.
I think that this would only be useful on devices that store
discrete copies of the blocks on different devices i.e. mirrors. If
it's an XOR based RAID, you don't have another copy you can
retreive....
Cheers,
Dave.
--
Dave Chinner
Principal Engineer
SGI Australian Software Group
next prev parent reply other threads:[~2007-06-18 4:57 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 [this message]
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
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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