The quota system (available only on ufs and vxfs

filesystems) is built around limits on the two principal

resources of a filesystem:

* inodes

* data blocks

For each of these resources, users can be assigned quotas.

Two limits can be used: hard limit and soft limit. The hard

limit represents an absolute limit on the resource.

Associated with the soft limit is a time limit set by the

administrator. Users can exceed the soft limits for a

limited amount of time.

In summary, for each user, you can assign quotas (soft and

hard limits) for both blocks and inodes. Also a time limit

can be set indicating how long users can exceed the soft limits.

Remember: only super-user (root) can set disk quota.