You can create quotas with qtrees as their targets to limit how large the qtree can become. These quotas are also called tree quotas.
When you apply a tree quota to a qtree, the qtree is similar to a disk partition, except that you can change its size at any time. When applying a tree quota, Data ONTAP limits the disk space and number of files in the qtree, regardless of their owners. No users, including root and members of the BUILTIN\Administrators group, can write to the qtree if the write causes the tree quota to be exceeded.
Note: The size of the quota does not guarantee any specific amount of available space. The size of the quota can be larger than the amount of free space available to the qtree. You can use the df command to determine the true amount of available space in the qtree.
