problems with quota files

[Simon Matter]

> Hello I am running cyrus 2.4.17
>
> I realized that quota shown for users with quota command is much less
> than real filesystem usage
>
> an example:
>
> /usr/lib/cyrus-imapd/quota user.username
>     Quota   % Used     Used Root
>   15000000       34  5189501 user.username
>
> du -sh /var/spool/imap/m/user/username
> 11G    /var/spool/imap/m/user/username
>
> I am a bit worried about it.
>
> I am using ext4
>
> the same problem was also on the previous cyrus version I was using
> 2.3.16  because I have the same problems.
>
> I fixed the quota files with quota -f but it did not resolve my problem.
>
> any hints ?

Maybe single instance store is causing it?

Regards,
Simon