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Date: Wed, 24 May 2006 02:18:48 -0400
From: Kris Kennaway <kris@obsecurity.org>
To: Kent Ho <kent@outblaze.com>
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Cc: freebsd-fs@freebsd.org
Subject: Re: Access to UFS stuck during snapshot.
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On Wed, May 24, 2006 at 02:17:51PM +0800, Kent Ho wrote:
> Hi,
>=20
> I having problems accessing file system during snapshot runs.  snapshot=
=20
> takes approximately 10 to 20 mins to run.
>=20
> During that time access to files in the file system are blocked until=20
> the snapshot has completed.  Lot of processes was stuck and piles up on=
=20
> the fs.
>=20
> This fs stores mailboxes and it's accessed 24/7.  This is similar to=20
> what described in this thread.
>=20
> http://www.freebsd.org/cgi/getmsg.cgi?fetch=3D14968+0+/usr/local/www/db/t=
ext/2006/freebsd-fs/20060312.freebsd-fs
>=20
> Has this been improved or fixed in recent releases, I see a bunch of=20
> fixes in march?  any possible work around?  any alternatives or=20
> recommendations?  Looking for high availability fs with snapshots.

It's by design.

Kris

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