[BBLISA] Incremental backups?

[Scott R. Ehrlich]

So I thought I'd get a head start for next week -

I have a low-power Linux box that has a few samba shares mounted, and limited 
hard disk space.   This box is connected to a tape library via SCSI card.

I want to find the best way to create a full, then incremental backup of the 
samba mounts, directly to tape.  Some of the samba mounts are appliances that 
cannot run any special client/agent.

I'm looking at tar as an option, with its --incremental switch.   Bacula uses a 
mysql database.  I tried setting it up and it was not so easy, so I opted to 
use my time for other tasks.  Same for Amanda.

I would use dump, but samba connections are not device files.

How about rsync?   The tape library is LTO3 with hardware compression 
available.  Google searching just now doesn't make rsync directly to tape too 
hopeful.

What are the simplest options for incrementals based on date/time modified?

Thanks.

Scott