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From: Neil Brown <neilb@suse.de>
To: saeed bishara <saeed.bishara@gmail.com>
Cc: Tuomas Leikola <tuomas.leikola@gmail.com>, linux-raid@vger.kernel.org
Subject: Re: Linux RAID migration
Date: Tue, 7 Aug 2007 21:18:01 +1000	[thread overview]
Message-ID: <18104.21737.341407.654022@notabene.brown> (raw)
In-Reply-To: message from saeed bishara on Tuesday August 7

On Tuesday August 7, saeed.bishara@gmail.com wrote:
> how can I create raid 5 array that preserves the contents of a given
> disk (part of the array)?
> I can do that in two steps, raid 5 on two disks then reshape it to be
> real raid5, but is there a direct way to do it?

What do you mean by "real raid 5".  Two disks are just as much an
array as 10.
What do you mean by "direct".  If I understand your requirements
correctly, there are two obvious steps.
  1/ make the data appear in a raid5
  2/ change the number of devices in the raid5.

Are two steps too many?

I guess I don't understand your question.

NeilBrown

  reply	other threads:[~2007-08-07 11:18 UTC|newest]

Thread overview: 21+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-07  8:16 Linux RAID migration saeed bishara
2007-08-07  8:26 ` Tuomas Leikola
2007-08-07 10:02   ` saeed bishara
2007-08-07 10:22     ` Neil Brown
2007-08-07 10:32       ` saeed bishara
2007-08-07 10:46         ` saeed bishara
2007-08-07 11:18           ` Neil Brown [this message]
2007-08-07 11:31             ` saeed bishara
2007-08-07 11:40               ` Neil Brown
2007-08-07 13:27                 ` saeed bishara
2007-08-07 15:15                   ` saeed bishara
2007-08-09  3:23                     ` Neil Brown
2007-08-15  9:02                 ` SWAP file on a RAID-10 array possible? Tomas France
2007-08-15 10:10                   ` David Greaves
2007-08-15 10:28                     ` Tomas France
2007-08-15 12:59                       ` David Greaves
2007-08-15 14:32                       ` Daniel Korstad
2007-08-15 21:42                       ` Michael Tokarev
2007-08-18  8:52                         ` Tomas France
2007-08-15 22:02                   ` Bill Davidsen
2007-08-07 10:37       ` Linux RAID migration Tomasz Chmielewski

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