From: Benjamin LaHaise <bcrl@redhat.com>
To: Chris Dos <chris@chrisdos.com>
Cc: nfs@lists.sourceforge.net
Subject: Re: Millions of files and directory caching.
Date: Wed, 23 Oct 2002 14:25:40 -0400 [thread overview]
Message-ID: <20021023142540.A28378@redhat.com> (raw)
In-Reply-To: <3DB6E791.2030304@chrisdos.com>; from chris@chrisdos.com on Wed, Oct 23, 2002 at 12:16:49PM -0600
On Wed, Oct 23, 2002 at 12:16:49PM -0600, Chris Dos wrote:
> Now if I can just come up with a way to make it do snapshots like a
> Netapp I'd be set. I heard that the Linux Volume Manager has this
> capability. Does anyone know if this is true? Back in 1999 there as a
> snapfs project that was started, but I don't think it ever got off the
> ground.
LVM has the ability to create block device level snapshots, but it exacts
a performance hit. Just how much depends on the configuration of the
array and whether the snapshot slices are allocated from a different
drive. It works quite well with ext3, although you have to make sure
you mount the snapshots as ext2 read only.
-ben
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next prev parent reply other threads:[~2002-10-23 18:25 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-10-23 14:50 Millions of files and directory caching pwitting
2002-10-23 18:16 ` Chris Dos
2002-10-23 18:25 ` Benjamin LaHaise [this message]
2002-10-23 19:48 ` Philippe Gramoullé
[not found] <Pine.LNX.4.44.0210231159160.17120-100000@guest239.wc.cray.com>
2002-10-23 22:26 ` Chris Dos
[not found] <6440EA1A6AA1D5118C6900902745938E07D54FA9@black.eng.netapp.com>
2002-10-22 21:00 ` Chris Dos
-- strict thread matches above, loose matches on Subject: below --
2002-10-21 14:59 Lever, Charles
2002-10-21 6:06 Matt Heaton
2002-10-21 12:34 ` Ragnar Kjørstad
2002-10-21 17:44 ` Chris Dos
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