Quota support for various file systems is implemented using the generic code provided by the Linux kernel. However, VxFS does not use this generic interface. VxFS instead supports a similar set of commands that work only for VxFS file systems.

VxFS supports the following quota-related commands:

The vxquota, vxrepquota, vxquot, and vxedquota commands support the -H option for human friendly input and output. When the -H option is used, the storage size is displayed in the following human−friendly units: bytes (B), kilobytes (KB), megabytes (MB), gigabytes (GB), terabyte (TB), petabytes (PB), and exabytes (EB). The quota soft and hard limits, quota usage, and the total storage consumed by a specific user or group or all users or groups can be obtained in human-friendly units using the -H option.

In addition to these commands, the VxFS mount command supports a special mount option (-o quota|userquota|groupquota), which can be used to turn on quotas at mount time. You can also selectively enable or disable user or group quotas on a VxFS file system during remount or on a mounted file system.

For additional information on the quota commands, see the corresponding manual pages.