From: Neil Brown <neilb@suse.de>
To: Bill Davidsen <davidsen@tmr.com>
Cc: Linux RAID <linux-raid@vger.kernel.org>
Subject: Re: Changing chunk size
Date: Fri, 16 Feb 2007 10:24:43 +1100 [thread overview]
Message-ID: <17876.60347.983953.748979@notabene.brown> (raw)
In-Reply-To: message from Bill Davidsen on Thursday February 15
On Thursday February 15, davidsen@tmr.com wrote:
> I have determined that a large array was created with an overly-large
> chunk size. Best way to resize?
Dump and restore.
in-place reshapes (such as raid5 + 1 disk => raid6 or
change-chunk-size) are on my list of 'that might be interesting to
implement', but there are plenty of more interesting things. And it
would be very slow. It would need to copy some number of stripes to a
backup somewhere, then copy them back in the new layout, so every
block in the array would be written twice.
NeilBrown
next prev parent reply other threads:[~2007-02-15 23:24 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-15 17:16 Changing chunk size Bill Davidsen
2007-02-15 23:24 ` Neil Brown [this message]
2007-02-16 16:48 ` Bill Davidsen
2007-02-16 18:49 ` Steve Cousins
2007-02-16 19:28 ` Justin Piszcz
2007-02-16 23:15 ` Bill Davidsen
2007-02-16 23:09 ` Bill Davidsen
2007-02-18 1:51 ` berk walker
2007-02-18 20:17 ` Bill Davidsen
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