Shutdown after connection failure to network volume

[rmichael-sd]

I schedule Macs to wakeup and SuperDuper to run overnight, storing the sparseimage to a network volume.

When a laptop wakes up off our network (on the road), and tries to connect to the network volume to access the sparseimage, it understandably fails. However, it displays an error window "Connection failed" warning, and waits for user interaction (to dismiss the warning window).

I would like SuperDuper to fail gracefully and shut the Mac down (so it doesn't remain turned on needlessly for the rest of the night) without running the backup, obviously.

Should I write my own network volume mounting script and handle the failure myself in the script?

(Aside, if I click "OK" to dismiss the "Connection Failed" error, SuperDuper runs anyway. As the network volume is not available, it then pops up the "Scheduled Copies" window -- presumably to indicate there was an error? Although, the scheduled backup name is not written in red to indicate an error. I must open the log (Show Log) to see the error (in the log viewer the error is red); after which the schedule copy name also turns red in the "Scheduled Copies" window behind the log I'm reading. This is not terribly elegant, will errors be better addressed and indicated in the next version of SuperDuper?)

Thanks for advice!

Regards.