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From: Jan Engelhardt <jengelh@linux01.gwdg.de>
To: Michael Tokarev <mjt@tls.msk.ru>
Cc: Bill Davidsen <davidsen@tmr.com>, Marc Perkel <mperkel@yahoo.com>,
	linux-kernel@vger.kernel.org
Subject: Re: Raid 10 question/problem [ot]
Date: Sun, 28 Jan 2007 22:40:07 +0100 (MET)	[thread overview]
Message-ID: <Pine.LNX.4.61.0701282238570.22295@yvahk01.tjqt.qr> (raw)
In-Reply-To: <45BCFE33.3000600@tls.msk.ru>


On Jan 28 2007 22:49, Michael Tokarev wrote:
>Bill Davidsen wrote:
>[]
>> RAID-10 is not the same as RAID 0+1.
>
>It is.  Yes, there's separate module for raid10, but what it - basically -
>does is the same as raid0 module over two raid1 modules will do.  It's
>just a bit more efficient (less levels, more room for optimisations),
>easy to use (you'll have single array instead of at least 3), and a bit
>more flexible;  at the same way it's less widely tested...

And most importantly, raid10 allows you to spread the array data over an odd
number of devices while still having [at least] 2 copies of each block.

Hm, I really wished resizing was implemented for raid0 and raid10 too... ;)


	-`J'
-- 

  reply	other threads:[~2007-01-28 21:41 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-01-27 18:00 Marc Perkel
2007-01-27 18:09 ` Jan Engelhardt
2007-01-27 18:31   ` Marc Perkel
2007-01-27 18:32     ` Jan Engelhardt
2007-01-27 18:42       ` Marc Perkel
2007-01-27 20:59         ` Jan Engelhardt
2007-01-27 18:52       ` Marc Perkel
2007-01-28  9:05       ` Michael Tokarev
2007-01-28 12:40         ` Jan Engelhardt
2007-01-28 19:44           ` Michael Tokarev
2007-01-28 21:45             ` Jan Engelhardt
2007-01-28 17:38 ` Bill Davidsen
2007-01-28 19:49   ` Michael Tokarev
2007-01-28 21:40     ` Jan Engelhardt [this message]
2007-01-29 15:17     ` Bill Davidsen

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