I upgraded my moms laptop to have dual drives (1 SSD in the standard bay, 1 HDD in the ODD bay). Well, due to that I had to restart the backup. But now there is a new problem. Total, the HDD and SSD together make 740 GB, however only 267 GB is used. TM, however, see that it needs to backup 284 GB, which isn't true. Plus, that 267 GB includes the system folder, which TM shouldn't back up, so in threoy the backup should be smaller then what the HDD and SSD use. I have tried a PRAM reset and SMC reset, didn't work. Is this normal? I have never seen it happen before and I have used TM for years. Machine is a 2010 13" MBP running 10.9.2.