Currently I have to set user space restrictions at each volume for each user. If the user accesses more than one volume on different servers than I have to set it there also. Is there a way to set a network (directory) wide user space restriction? That way no matter which volume (server) the user accesses or the user stores files, all will count against the set quota.

I am aware of the ability to set user group restrictions in iManager and surely that will ease the management, but not all users have the same quotas.