User volumes are like all other volumes with respect to quota. Each new AFS volume has a default quota of 5000 KB, unless you use the -maxquota argument to the vos create command to set a different quota. You can also use either of the following commands to change quota at any time:
fs setquota
fs setvol
You can use any of the three following commands to display a volume's quota:
fs quota
fs listquota
fs examine
For instructions, see Setting and Displaying Volume Quota and Current Size.