From: Matt Domsch <Matt_Domsch@dell.com>
To: Chris Friesen <cfriesen@nortelnetworks.com>
Cc: Jeff Garzik <jgarzik@pobox.com>,
Scott Long <scott_long@adaptec.com>,
linux-raid@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: Proposed Enhancements to MD
Date: Tue, 13 Jan 2004 14:35:59 -0600 [thread overview]
Message-ID: <20040113143559.B7646@lists.us.dell.com> (raw)
In-Reply-To: <40045539.9040709@nortelnetworks.com>; from cfriesen@nortelnetworks.com on Tue, Jan 13, 2004 at 03:29:45PM -0500
On Tue, Jan 13, 2004 at 03:29:45PM -0500, Chris Friesen wrote:
> How is this different than the 20GB RAID0 and 6 15BB RAID1s that I've
> got on two 100GB spindles right now?
Indeed, md does this with partitions on the disks today, so it is
analogous; DDF does this with disk extents, which has the same
functionality as partitions, but without an MSDOS partition table to
define the partitions, but an on-disk metadata format (yes, partition
tables are metadata too...).
The solution needs partitions/extents in two places.
1) below the logical drive, from which logical drives are created.
2) above the logical drive, on which multiple file systems are
created.
md provides 1) today, and as discussed today patches exist to do 2)
that have not yet been merged.
--
Matt Domsch
Sr. Software Engineer, Lead Engineer
Dell Linux Solutions www.dell.com/linux
Linux on Dell mailing lists @ http://lists.us.dell.com
next prev parent reply other threads:[~2004-01-13 20:36 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <40036902.8080403@adaptec.com>
2004-01-13 14:19 ` Proposed Enhancements to MD Matt Domsch
2004-01-13 17:13 ` Andreas Dilger
2004-01-13 22:26 ` Andreas Dilger
2004-01-13 18:19 ` Kevin P. Fleming
2004-01-13 18:19 ` Jeff Garzik
2004-01-13 20:29 ` Chris Friesen
2004-01-13 20:35 ` Matt Domsch [this message]
2004-01-13 21:10 ` Matt Domsch
2004-01-13 19:59 Proposed enhancements " Cress, Andrew R
-- strict thread matches above, loose matches on Subject: below --
2004-01-13 0:34 Scott Long
2004-01-13 16:26 ` Jakob Oestergaard
[not found] ` <20040113201058.GD1594@srv-lnx2600.matchmail.com>
2004-01-14 19:07 ` Jakob Oestergaard
[not found] ` <20040114194052.GK1594@srv-lnx2600.matchmail.com>
2004-01-14 21:02 ` Jakob Oestergaard
[not found] ` <20040114222447.GL1594@srv-lnx2600.matchmail.com>
2004-01-15 1:42 ` Jakob Oestergaard
2004-01-13 18:21 ` mutex
2004-01-13 19:05 ` Jeff Garzik
2004-01-13 19:30 ` mutex
2004-01-13 19:43 ` Jeff Garzik
2004-01-13 20:00 ` mutex
2004-01-13 20:44 ` Scott Long
2004-01-13 18:44 ` Jeff Garzik
2004-01-13 19:01 ` John Bradford
2004-01-13 19:41 ` Matt Domsch
2004-01-13 22:10 ` Arjan van de Ven
2004-01-16 9:31 ` Lars Marowsky-Bree
2004-01-16 9:57 ` Arjan van de Ven
2004-01-13 20:41 ` Scott Long
2004-01-13 22:33 ` Jure Pečar
2004-01-13 22:44 ` Scott Long
2004-01-13 22:56 ` viro
2004-01-14 15:52 ` Kevin Corry
2004-01-13 22:42 ` Luca Berra
2004-01-13 22:06 ` Arjan van de Ven
2004-01-13 22:44 ` Wakko Warner
2004-01-13 22:34 ` Arjan van de Ven
2004-01-13 23:09 ` Andreas Steinmetz
2004-01-13 23:38 ` Wakko Warner
2004-01-14 16:16 ` Kevin Corry
2004-01-14 16:53 ` Kevin P. Fleming
2004-01-14 23:07 ` Neil Brown
2004-01-15 21:52 ` Matt Domsch
2004-01-16 9:24 ` Lars Marowsky-Bree
2004-01-16 13:43 ` Matt Domsch
2004-01-16 13:56 ` Lars Marowsky-Bree
2004-01-16 14:06 ` Christoph Hellwig
2004-01-16 14:11 ` Matt Domsch
2004-01-16 14:13 ` Christoph Hellwig
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