[rsnapshot-discuss] rsnapshot backups within other rsnapshot backups

[scar]

I currently use a daily rsnapshot for backup, for example

snapshot_root /mnt/ext/
backup /mnt/disk/ disk/

/mnt/disk is shared via NFS to my laptop, and i would like to use
rsnapshot on my laptop to backup my home dir on an hourly basis, so on
the laptop rsnapshot.conf i have:

snapshot_root /mnt/autofs/disk/backups/
backup /home/scar/ laptop/

with this setup, i have found /mnt/ext fills up very quickly. I am
thinking it is because the daily rsnapshot on the NFS server is thinking
each hourly backup of my laptop is a new backup and thus not using hard
links properly.

So i wonder: how can i correctly use rsnapshot on my laptop to backup
my home directory to the remote NFS share, which is backed up daily to
the external backup?

Thanks