In the AFS distributed filesystem, you might be given write access to one or more volumes. To view your disk quota in any of those volumes, change to any directory in the volume and use this command:
$ fs listquota -human
This prints out the size of your disk quota on that volume and how much of that is already occupied by files.
Tried with: OpenAFS 1.6.1-1 and Ubuntu 12.04 LTS