QNAP TS-112 Minimserver compatible?

[TomP]

Thanks.

The size of my Multimedia folder is about 2.8TB (and increasing weekly) out of 3.8TB available on my TS253A.

I may be misunderstanding , but is seems like your scheme would need the Backup NAS to have 3-4 times that storage capacity (ie. greater than 10TB) which would not be feasible. Is this correct?