Hey, thanks for posting back. So you don't think there is much performance gain in separating out LR components to different SSDs?
No doubt the better SSD the faster it is still on a very good SSD.
So I don't feel that you should change that only for Lightroom.
The places where disk speed can improve performance are in the initial loading of the software, and catalog operations such as scrolling.
Other operations in Lightroom, such as editing, searching, rendering previews, exporting, etc. are only trivially affected by disk speed. So setting up three SSDs for Lightroom won't affect performance in a lot of areas. And so with respect to your title "Maximizing LR Performance with Multiple SSDs", I don't think SSDs will achieve any performance maximization; at best they improve/maximize portions of Lightroom performance.
So, what action in Lightroom show poor performance that you actually trying to improve?
With respect to this:
I will also leverage one of the SSDs to store the images I'm actively working on. These would be eventually moved (using LR) to the spinning disks when I'm no longer working on them.
I consider this a total waste of time. You will never notice the difference in speed when you are actively working on these photos, but you will have to take the time to move the photos when you're no longer working on them.
I'm not necessarily buying a 3rd SSD for Lightroom but I was interested to see if splitting out certain components or files to individual SSDs would have any benefit. It appears that this might not have any real improvement.
In general I find Lightroom performance poor but this seems to be a general issue that many people seem to suffer from with version 6. Specifically for me the pain areas are simple activities like selecting multiple images in grid view where the selection process suffers from increasing lag the more images I select. In Develop module, zooming to 100% can be slow even with newly imported images that already have previews built. Given the system resources available to me, I would expect LR to be a lot more "snappy". But as I say, that's not my primary reason for a 3rd SSD.
And thanks for the feedback on the idea of storing active images on an SSD.
I don't think adding a third SSD is going to make any difference. Something else must be slowing down your computer. Have you tried turning off GPU acceleration in your Lightroom preferences to see if that makes a difference?
Yeah, I have GPU acceleration turned off. One of the first things I did and it made a big difference to performance. Previous to that LR was almost unusable.