From: Robin Hill <robin@robinhill.me.uk>
To: linux-raid <linux-raid@vger.kernel.org>
Subject: Re: Building RAID5 w/o a Hot Spare
Date: Wed, 27 Jan 2010 14:53:13 +0000 [thread overview]
Message-ID: <20100127145313.GA31715@cthulhu.home.robinhill.me.uk> (raw)
In-Reply-To: <1264603577.1928.4.camel@test.apertos.eu>
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On Wed Jan 27, 2010 at 03:46:17PM +0100, Michał Sawicz wrote:
> Dnia 2010-01-27, śro o godzinie 09:26 -0500, Carlos Williams pisze:
> > I am building a Linux system which has 4 identical 'fd' partitions on
> > each of the 4 drives. I don't want to use the 4th partition or disk if
> > you would like to call it as a 'hot spare'. I would like to span the
> > entire array over the 4 drives. My question is does my command look
> > correct for doing so?
>
> I'm not sure I understand what you want to achieve. A 'spare' disk is
> one that isn't used until any of the other fail, then the spare replaces
> the failed one. The term 'hot spare' is used to identify a disk that is
> a mirror of one of the other drives, but there's no support for that in
> Linux Software-RAID.
>
A hot spare is one that's plugged in, powered up, and available for use
(a cold spare is sat on a shelf). At least, that's the only way I've
ever heard the terminology used.
Cheers,
Robin
--
___
( ' } | Robin Hill <robin@robinhill.me.uk> |
/ / ) | Little Jim says .... |
// !! | "He fallen in de water !!" |
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next prev parent reply other threads:[~2010-01-27 14:53 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-01-27 14:26 Building RAID5 w/o a Hot Spare Carlos Williams
2010-01-27 14:46 ` Michał Sawicz
2010-01-27 14:53 ` Robin Hill [this message]
2010-02-01 21:45 ` Bill Davidsen
2010-01-27 15:14 ` Goswin von Brederlow
2010-01-27 15:15 ` Carlos Williams
2010-01-27 20:46 ` Goswin von Brederlow
[not found] ` <1264603005.1928.3.camel@test.apertos.eu>
[not found] ` <d80f793f1001270641k29430f12r59b9f9fa02966ea0@mail.gmail.com>
2010-01-27 14:49 ` Carlos Williams
2010-01-27 15:34 ` Michał Sawicz
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