What to do after installing Optibay (MacBook Pro 2011)?

Question

Hard disks

We save time.
Optibay :
HDD instead of DVD
SSD in place of HDD
System on SSD, El Capitan
System on HDD, Yosemite (just rearranged this drive) The
question is:
What, in good terms, should be done after this procedure (installing the SSD)?
Excites that on HDD other system.
PS
I hope I didn't take too much time.