quota

quota module allows user to set limits on the disk space used by a directory. Storage admins can control the disk space utilization at the directory and volume levels.

The ‘action’ option can be any of the following: 1. enable - To enable quota behavior on a volume. 2. disable - To disable quota behavior on a volume. 3. remove - To remove the usage limits, if previously set. 4. remove-objects -To remove the usage limits on a specific directory, if

previously set.
  1. default-soft-limit - The default soft limit is 80%, though it can be altered
    on a per-volume basis.
  2. limit-usage - To limit the total amount of space to be consumed by a volume.
  3. limit-objects - To limit the total allowed number of directories/files.
  4. alert-time - To configure how frequently usage information is logged.
    By default alert-time is 1 week(1w).
  5. soft-timeout - To specify how often disk usage is to be checked against the
    disk usage limit when below the soft limit set on the directory or volume. The default soft timeout frequency is every 60 seconds.
  6. hard-timeout - To specify how often disk usage is to be checked against the
    disk usage limit when above the soft limit set on a directory or volume. The default hard timeout frequency is every 5 seconds.

All of the above options support the following variables: * volname - This option specifies the volume name.

  • path - remove, remove-objects, limit-usage and limit-objects option support
    path variable to specify the path of the directory.
  • size - limit-usage option supports a size variable to specify the size of
    the disk to be used.
  • number - limit-objects option supports the number variable to specify the
    maximum number of directories/files.
  • percent - default-soft-limit supports a percent variable to specify the
    percentage of the disk space supposed to be used.
  • time - alert-time, soft-timeout, and hard-timeout support the time variable
    to specify the time in weeks,seconds and seconds respectively.
  • client_hosts - soft-timeout and hard-timeout options support the client_hosts
    variable

For example:

Example 1: Enable quota on a specific volume:

[quota]
action=enable
volname=quotavol

Example 2: Limit the disk-usage for the specific volume:

[quota]
action=limit-usage
volname=quotavol
path=/mnt
size=100GB

Example 3: Limit the number of files for a specific volume:

[quota]
action=limit-objects
volname=quotavol
number=3

Example 4: Set soft-timeout for quotavol volume:

[quota]
action=soft-timeout
time=90