[OpenAFS] Memory cache question

Derrick J Brashear shadow@dementia.org
Fri, 8 Nov 2002 16:18:01 -0500 (EST)


On Fri, 8 Nov 2002, Dan Pritts wrote:

> On Fri, Nov 08, 2002 at 03:29:12PM -0500, Derrick J Brashear wrote:
> > > I would look at using the rsync command to maintain a local disk replica
> > > copy of
> > > the whole 1gb of images files. Don't mess around with 500 mb. Disk is cheap.
> > > The rysnc command is "clever" because it only copies what it has to copy.
> > > If there are no changes, rsync will copy nothing.
> >
> > Which is clever but has the "not in-band" problem.
>
> rsync can work in-band, copying from one filesystem to another.  It would
> not whack the cache, since by default it just compares sizes on the
> files rather than comparing the contents.

It's not using Rx, so it's out of band for purposes of this discussion.