Quota Types

There are three types of quotas:

Type Description
User, or Group

User and Group Quotas limit the number of file system blocks that can be allocated by the user or group on which the limit is placed. When quotas are on, the total allocated file system space of all users and groups that own files in the file system are automatically kept.

Directory

Directory Quotas are a little different. The system does not automatically keep track of the usage for each directory. The snquota command allows directories to be turned into the root of a Directory Quota Name Space (DQNS). Then, the number and size of all files in the directory and all its subdirectories are tracked and (optionally) limited.

Note: When working with Directory Quotas, the specified file system must be mounted on the node running snquota.

Note: For all quota types, limits and usage values only apply to regular files, not directories, symlinks, or special device files.

Refer to the snquota(1) MAN Pages Reference Guide for additional information on the Manage Quotas feature, command syntax usage, and examples.