This is for mac users with a Drobo FS for time machine.
I did this as an experiment, log into your FS as root, and go to /etc/avahi/services/
Create a file adisk.service
[code]<?xml version="1.0" standalone='no'?>
Change 00:1A:62:03:13:89 to your MAC address of your Drobo, and Time_Machine to your time machine share name. The 956cf67c-f448-453f-9dec-dd17855ee076 should be a UUID of the share/disk but I didn’t know it and it didn’t seem crucial.
Then you do /sbin/avahi-daemon -r
to restart the daemon.
In Time machine preferences when you select disk, you should see your drobo, listed as HOSTNAME-TimeMachine.
IE you don’t have to mount it for the first time.
To undo this, remove the adisk.service file and do /sbin/avahi-daemon -r