i want to implement disk quota on my /home filesystem (it is going to be a mail server) so i read tha appropriate how to's edited limits for the users and everything is fine

but then for quota meintenance i stuck into quotacheck

the man page says

quotacheck should be run each time the system boots and mounts non- valid filesystems. This is most likely to happen after a system crash.

AND

It is also unwise to run quotacheck on a live filesystem as actual usage may change during the scan. To prevent this, quotacheck tries to remount the filesystem read-only before starting the scan. After the scan is done it remounts the filesystem read-write.

but the 7.2.3 paragraph (Managing disk quotas) of centos 5 deployment guide

...... However, quotacheck can be run on a regular basis, even if the system has not crashed. Running the following command periodically keeps the quotas more accurate .......

i have looked also on the web

and some suggest to run quotacheck only at boot time

and others to run quotacheck regularly but i ahve not found a clear answer

i wonder what are the comments of centos community on hte subject