I have an iMac (27-inch, Late 2013). It has a TB system disk and a 4TB attached Thunderbolt drive. I have a NAS with an attached 4TB HDD that I use for Time Machine backup. However, only the system drive is being backed up. Any thoughts on how to get the TB drive include would be greatly appreciated. Thanks!
iMac (27-inch, Late 2013), OS X Yosemite (10.10.5)
Open the Time Machine pane of System Preferences, click the Options button, and check that the external drive isn’t excluded.
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There are no exclusions. The TB drive is sitting on the desktop and I can easily open it and access its contents. Shouldn't it be automatically including?
I have the same problem after ReayNas updated two days ago. Nas shows up under shared in the finder sidebar and I can access all the files, but it does not show up when I try to select disk in the time machine window.
I only realized because I needed a file version from last week.
Thunderbolt drive not backup up by Time Machine
