Question: two Macs, one external Hard Drive
I have an iMac and a MacBook. Both running Sierra v10.12.6. I just got a 2TB Seagate portable external hard drive that I want to use as my Time Machine back up for both Macs. I know this means I will need to disconnect it back and forth between the two Macs and use manual back ups rather than the auto back up feature.
My question is do I need to partition the drive into two partitions - one for each Mac? Or can I just connect it as it is currently configured and will Time Machine automatically distinguish which Mac was which?
iMac, macOS Sierra (10.12.6)