Date: Mon, 17 Mar 2008 20:14:42 +0000 From: Daniel Bye <freebsd-questions@slightlystrange.org> To: freebsd-questions@freebsd.org Subject: Re: Does softupdate help squid ? Message-ID: <20080317201442.GA26672@torus.slightlystrange.org> In-Reply-To: <200803171934.06136.lists-fbsd@shadypond.com> References: <47DE312E.2030209@esiee.fr> <20080317201730.G88797@wojtek.tensor.gdynia.pl> <200803171934.06136.lists-fbsd@shadypond.com>
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On Mon, Mar 17, 2008 at 07:34:04PM +0000, Pollywog wrote:
> On Monday 17 March 2008 19:17:58 Wojciech Puchar wrote:
> > > Hello
> > >
> > > I'm setting up a squid cache (3.0.2) machine FreeBSD 7.0 based and I
> > > wonder if softupdates could help (make it faster ) or not the cache
> > > partition ?
> >
> > i would say it's absolutely needed.
> >
> > anyway - any reason to not use soft updates on every filesystem?
>=20
> What exactly is a soft update?
It's a bit like a hard update, but it won't hurt your disks as much
if your system crashes... ;-P
On a more serious note, it's a technique for ensuring the integrity of
disks after a system crash or power failure. Like journalling, they=20
don't guarantee data won't be lost, but instead that the disks will be=20
in a consistent state at recovery.
There are many many papers on the subject on the web, if you're=20
interested.
Dan
=20
--=20
Daniel Bye
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