[OpenAFS] Check if Volume is availabe

[Klaas Hagemann]

Hi,

i use afs for home directories. Every user's home directory is one volume.
Therefor i do not have any read-only replicas of these volumes conaining a
home directory.
How can i check on the client, if the volume with the home-directory is
available? I want to use a startupscript, which checks the avaiability for
the volume with the home directory and creates a local home-directory if the
afs-volume is not available.

Any ideas?