If you physically disconnect one of the Time Machine drives, then your description is correct. But if both are connected, â„¢ alternates hourly between the two, or so I have read.
Ira is describing what I see on my Macs running OS X 10.11.2 beta 5
"All you've got to do is own up to your ignorance honestly, and you'll find people who are eager to fill your head with information" --Walt Disney
