Lustre discuss - Oct 2010 - Setting up quotas

Can I setup quotas after lustre is active? Or does that require taking
everything offline? Or could I just run "lfs quota on" and then start
setting quotas for every user? Will running this command on one client
then effect all of them? or do I have to run it everywhere? And is
there a way to notify users or at least the admins via email? Or is it
simply something that is returned on the shell?

David

-- 
Personally, I liked the university. They gave us money and facilities,
we didn''t have to produce anything! You''ve never been out of
college!
You don''t know what it''s like out there! I''ve worked
in the private
sector. They expect results. -Ray Ghostbusters

On Tue, Oct 05, 2010 at 12:31:15PM -0500, David Noriega
wrote:
> Can I setup quotas after lustre is active? Or does that require taking
> everything offline? Or could I just run "lfs quota on" and then
start
> setting quotas for every user?
You can turn quotas on with "lfs quotacheck -ug /path/to/lustre/fs"
(requires to be root) while the filesystem is up. However, users should not
modify the filesystem during the quotacheck operation otherwise space accounting
might be incorrect.
> Will running this command on one client then effect all of them?
Yes, quotas will be enabled globally.

The lustre manual has a section dedicated to quotas:
http://wiki.lustre.org/manual/LustreManual18_HTML/ConfiguringQuotas.html

Cheers,
Johann