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setting up one's own server is very exciting - every day something new crops up ;)
this time it's disk quotas:
our redhat server is going strong with 12 vitual hosts on it. i would now like to set up user quotas, however i think i should have done this at the start? man quotacheck:
...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...
if i force quotacheck to run, will it do funny things to the disk preventing our websites from being seen - during the time quotacheck takes to complete?
or can i simply use the -m flag to force it to run? is this 'dangerous'
I can't see how a quotecheck on a live system can cause any serious problems for the system.
It might cause unwanted effects for the users, though. If a user has large temp files during the scan, which are removed before the scan is done, that user might end up with a registered usage over the real usage, and hence have a de-facto quota below the wanted quota.