From: Roman Mamedov <rm@romanrm.ru>
To: Robin Hill <robin@robinhill.me.uk>
Cc: Pierre Martineau <pierre.martineau@inserm.fr>,
linux-raid@vger.kernel.org
Subject: Re: RAID5 recovering
Date: Tue, 16 Apr 2013 14:30:35 +0600 [thread overview]
Message-ID: <20130416143035.43533168@natsu> (raw)
In-Reply-To: <20130415151939.GA8383@cthulhu.home.robinhill.me.uk>
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On Mon, 15 Apr 2013 16:19:39 +0100
Robin Hill <robin@robinhill.me.uk> wrote:
> Given the rebuild time for a 1To disk, I'd be wary of running RAID5 - if
> you have the space, adding another disk and going to RAID6 will be much
> safer.
As I see it, 3 disks is about the only configuration where RAID5 still does
make sense.
4 disks is a tricky spot, RAID5 already feels a bit too dangerous, but RAID6
is still not space-efficient enough.
5-disk (and more) RAID6 is the way to go, but changing from 3 disks to 5 or
more is not always justified requirements/cost/space-wise.
--
With respect,
Roman
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next prev parent reply other threads:[~2013-04-16 8:30 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-15 13:47 RAID5 recovering Pierre Martineau
2013-04-15 15:19 ` Robin Hill
2013-04-15 15:49 ` Oliver Schinagl
2013-04-15 15:58 ` Pierre Martineau
2013-04-16 8:30 ` Roman Mamedov [this message]
2013-04-16 16:41 ` Roy Sigurd Karlsbakk
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