From: Roman Mamedov <rm@romanrm.ru>
To: "Joachim Otahal (privat)" <Jou@gmx.net>
Cc: linux-raid@vger.kernel.org
Subject: Re: RAID5 with two drive sizes question
Date: Wed, 6 Jun 2012 01:59:50 +0600 [thread overview]
Message-ID: <20120606015950.585d5454@natsu> (raw)
In-Reply-To: <4FCE60F3.4040606@gmx.net>
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On Tue, 05 Jun 2012 21:41:39 +0200
"Joachim Otahal (privat)" <Jou@gmx.net> wrote:
> Use only 750GB partitions, use the 3*250 GB loss at the end of each 1 TB
> drive for the fourth 750 GB, and RAID6 those 8*750. Result is 4.5 TB
> with a one-drive-loss tolerance and really bad performance.
> I spare you the 500 GB partitions example which result in 4.5 TB with a
> one-drive-loss tolerance and really bad performance.
Except this would not make any sense even as a thought experiment. You don't
want a configuration where two or more areas of the same physical disk need to
be accessed in parallel for any read or write to the volume. And it's pretty
easy to avoid that.
--
With respect,
Roman
~~~~~~~~~~~~~~~~~~~~~~~~~~~
"Stallman had a printer,
with code he could not see.
So he began to tinker,
and set the software free."
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next prev parent reply other threads:[~2012-06-05 19:59 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-06-05 17:27 RAID5 with two drive sizes question Joachim Otahal (privat)
2012-06-05 17:39 ` Roman Mamedov
2012-06-05 19:41 ` Joachim Otahal (privat)
2012-06-05 19:59 ` Roman Mamedov [this message]
2012-06-05 20:36 ` Stan Hoeppner
2012-06-05 20:48 ` Joachim Otahal (privat)
2012-06-06 4:16 ` Roman Mamedov
2012-06-07 0:39 ` Stan Hoeppner
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