New quotas and changes to quotas do not take effect until they are activated. Knowing how quota activation works can help you manage your quotas less disruptively.
You can activate quotas at the volume level.
Your quotas file does not need to be free of all errors to activate quotas. Invalid entries are reported and skipped. If the quotas file contains any valid entries, the quotas are activated.
Quotas are activated either by initializing (turning them on) or by resizing. Turning off quotas and turning them on again is called reinitializing.
The length of the activation process and its impact on quota enforcement depends on the type of activation:
By default, the quota on and quota resize commands run in the background, which permits you to use other commands at the same time.
Errors and warnings from the activation process are sent to the system log messages. Using the -w option with the quota on command displays the error messages as part of the command output; this is useful if you are reinitializing from a script. (The quota resize command does not have a -w option.)
Quota activation persists across halts and reboots. You should not activate quotas in the /etc/rc file. The process of quota activation does not affect the availability of the storage system data.