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? > > 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
don't guarantee data won't be lost, but instead that the disks will be
in a consistent state at recovery.
There are many many papers on the subject on the web, if you're
interested.
Dan
--
Daniel Bye
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