My secondary drive access issue is resolved but I'm not certain how it was caused.
Here's what I think happened....
HDD can't see SSD
As originally stated, I made many attempts to install Win 8 on the SSD.
-on one attempt I booted to the HDD and deleted the partitions on the SSD To fix the problem....
-Win on the HDD recognized the secondary drive as unallocated, therefore it wouldn't show up in File Explorer
-I shut down, disconnected the HDD and installed Win on the SSD.
-I shut down, reconnected the HDD.
-Anytime I booted to Win the the HDD, it still showed the SSD as unallocated and did not show up in File Explorer.
-I disconnected the SSD and booted to Win on the HDD (of course, the SSD was not seen in Disk Manager but Win was updated to show that there was no secondary drive available)
-I shut down, reconnected the SSD and rebooted to Win on the HDD. (this caused Win to see the SSD and now realized that it was assigned a drive letter and showed it in File Explorer)
-Therefore, I belived that Win 8 in the HDD needed to clear it's memory of the unallocated SDD before it could recognize it as active on a subsequent boot.
SSD can't see the HDD
I'm not so sure about this one!
-On every SSD Win installation attempt, the HDD was disconnected. This doesn't make sense to me but the only thing that I can rationalize is that one of the Windows updates fixed the issue.
-After the installation, I shut down, reconnected the HDD and booted to the SSD. Win should have picked up the HDD as a secondary drive. In my first few installation attempts, it did recognize the HDD. On my latter attempts, it didn't???????
-On my last Win installation, I was aimlessly thrashing about wishing for magic. I had installed Win 8 Core on the SSD and couldn't see the HDD. I intended to install the Win 8 Pro upgrade but before doing so, I downloaded all the Win updates. After the updates were installed, I could see the secondary HDD!