From: Matthias Urlichs <matthias@urlichs.de>
To: linux-raid@vger.kernel.org
Subject: Re: RAID 16?
Date: Sun, 20 Sep 2009 19:44:00 +0000 (UTC) [thread overview]
Message-ID: <h960lv$n8p$7@ger.gmane.org> (raw)
In-Reply-To: Pine.LNX.4.44.0602022119380.12829-100000@firewall2.tmr.com
On Thu, 02 Feb 2006 21:32:44 -0500, Bill Davidsen wrote:
>> Would this work? Would it be better than RAID 15? We're looking for a
>> very high redundancy system.
>
> You only get the size of two drives with that! I think you would get the
> same reliability and better performance with four RAID-1 mirror arrays
> and RAID-5 over that. You still have to lose four drives to lose data,
> but you get the size of three instead of two.
But in his case, the loss of any four disks is not a problem.
Personally, in this case I'd build a simple RAID6 with two spares. You
can lose four disks (just not at the same time :-P ) and you still have
four disks' capacity.
Of course, if you're worried about controller failure, a RAID1 built from
two RAID6 (one on each controller) is your only high-reliability option.
--
prev parent reply other threads:[~2009-09-20 19:44 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-02 5:59 RAID 16? David Liontooth
2006-02-02 6:03 ` Neil Brown
2006-02-02 8:34 ` Gordon Henderson
2006-02-02 16:17 ` Matthias Urlichs
2006-02-02 16:28 ` Mattias Wadenstein
2006-02-02 16:54 ` Gordon Henderson
2006-02-02 20:24 ` Matthias Urlichs
2006-02-02 21:18 ` J. Ryan Earl
2006-02-02 21:29 ` Andy Smith
2006-02-02 22:38 ` Konstantin Olchanski
2006-02-03 2:31 ` Ross Vandegrift
2006-02-03 2:54 ` Bill Davidsen
2006-02-02 18:42 ` Mario 'BitKoenig' Holbe
2006-02-02 20:34 ` Matthias Urlichs
2006-02-03 0:20 ` Guy
2006-02-03 0:59 ` David Liontooth
2006-02-02 16:44 ` Mr. James W. Laferriere
2006-02-03 9:08 ` Lars Marowsky-Bree
2006-02-03 2:32 ` Bill Davidsen
2006-02-05 23:42 ` Hard drive lifetime: wear from spinning up or rebooting vs running David Liontooth
2006-02-06 3:57 ` Konstantin Olchanski
2006-02-06 5:25 ` Patrik Jonsson
2006-02-06 4:35 ` Richard Scobie
2006-02-06 10:09 ` Mattias Wadenstein
2006-02-06 16:45 ` David Liontooth
2006-02-06 17:12 ` Francois Barre
2006-02-07 8:44 ` Hans Kristian Rosbach
2006-02-07 19:18 ` Neil Bortnak
2006-02-06 19:22 ` Brad Dameron
2006-02-06 21:15 ` Dan Stromberg
2009-09-20 19:44 ` Matthias Urlichs [this message]
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