[OpenAFS] vos moves can be slow, and we have some data

[Harald Barth]

> A vos move shouldn't take 28:22 minutes.  Here's part of a combined
> VolserLog, with fileserver afs58 moving to afs61, that shows what's
> going on.

28 minutes you say. Could you translate that into
files per second and bytes per second?

Harald.