On Mon, Sep 27, 1999 at 10:34:03AM -0400, Tom Menner wrote:
> Has anyone seen a practical limit to the frequency of replications
> done?
...
> Have
> any other sites experimented with this, e.g. with replicating Web
> data? If so how robust has frequent updating of replicating been?
> Is one to two minutes unreasonable?
Many of our volumes require 20 minutes or more to replicate, so
one or two minutes is simply not reasonable. On the other hand,
I can imagine running a job which looks at a RW volume and its
RO copy, checks to see that it is not locked and that the RW
copy is accessible (if either of these fails, it shouldn't try
to release it), then checks the timestamps and sizes of all files
in the volume (and some similar check for symbolic links, at least),
and releases only if safe and necessary. Our four main file
servers have currently about 200gb of filestore, of which only
a few small volumes get released hourly.
-- Owen
[EMAIL PROTECTED]
