[Dovecot] fs quota check with server does not support, rquotad

I think the problem is in these few lines:

dovecot: Jul 15 18:13:21 Info: IMAP(01234567g): fs quota add storage dir = /home/h1/sc/01234567g/mail dovecot: Jul 15 18:13:21 Info: IMAP(01234567g): fs quota block device = homesvr:/h1 dovecot: Jul 15 18:13:21 Info: IMAP(01234567g): fs quota mount point = /home/h1

Since my configuration file only have

plugin { quota = fs:INBOX:mount=/var/mail }

shouldn't /home/h1 be just ignored? Or there are some parameters in "quota=" to ignore this mount point?

Grandy