From: Rupa Schomaker <rupa-list@rupa.com>
To: linux-lvm@sistina.com
Subject: Re: [linux-lvm] lvm and 'poor mans raid' on heterogenous hard drives!
Date: Wed Feb 20 18:41:02 2002 [thread overview]
Message-ID: <m3zo23u0o7.fsf@shakti.rupa.com> (raw)
In-Reply-To: 20020220103147.A890@lynx.adilger.int
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Andreas Dilger <adilger@turbolabs.com> writes:
> Swap is a bad move, since you can just add multiple swap spaces with the
> same priority (if you so choose) and it will do the striping for you.
> Likewise, you could put each of the above trees on their own drive and
> you would probably get better overall performance than striping.
This suggestion has always bothered me. Yes, if all you care about
performance, setting up swap this way works fine. However, for every
drive you add you increase the likelyhood that you're system will fail
due to a drive failure (what happens when one of the swap slices
suddenly dissapears?).
The better (IMO) suggestion is to use MD to setup RAID-1 mirrors and
then swapadd those. That way, if one of your drives go south, you
still have a workable swap.
- --
- -rupa
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next prev parent reply other threads:[~2002-02-20 18:41 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-02-19 13:54 [linux-lvm] *** ANNOUNCEMENT *** LVM 1.0.3 available at www.sistina.com Heinz J . Mauelshagen
2002-02-19 14:15 ` tim
2002-02-19 18:11 ` Heinz J . Mauelshagen
2002-02-19 20:54 ` [linux-lvm] lvm and 'poor mans raid' on heterogenous hard drives! Steve Wray
2002-02-19 23:20 ` Andreas Dilger
2002-02-19 23:47 ` Steve Wray
2002-02-20 11:32 ` Andreas Dilger
2002-02-20 16:02 ` Steve Wray
2002-02-20 18:18 ` [linux-lvm] striping volumes Steve Wray
2002-02-20 18:41 ` Rupa Schomaker [this message]
2002-02-20 20:59 ` [linux-lvm] lvm and 'poor mans raid' on heterogenous hard drives! Andreas Dilger
2002-02-21 3:19 ` William Blunn
2002-02-21 10:15 ` Rupa Schomaker
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