Can .lrcat and .lrdata files be on different drives?

I use a MacPro. My boot drive is a 3 TB internal hard drive. My .lrdata file (LR 5) is over 275 GB because I have 1:1 previews for all of my photos. I have recently purchased a 240GB SSD which I want to use as my boot drive to increase processing times. Can I have the .lrcat file on my SSD (for speed) and the corresponding .lrdata file on another drive?
Thanks!!

0. Move "{path-to-catalog-folder}/{catalog-name} Previews.lrdata" folder to preferred location.
1. Open Terminal (it's in Utilties folder of Applications).
2. Type
ln -s "{path-to-where-you-moved-lr-previews}" "{path-to-catalog-folder}/{catalog-name} Previews.lrdata"
then press 'Enter' (the return key).
note: {path-to...} should be replaced by the correct path on your system.
Let me/us know if you get stuck.
hint: example of path-to-catalog-folder:
/Users/Me/MyLrCatalogs/MyMainCatalog
tonysiciliano1 wrote:
While I've got your learned attention, I have more questions. My current state of affairs is that I have my .lrcat file copied on both my 240 GB SSD drive and my 3TB internal additional drive. The location of my "Cache for Previews" file is on the 3 TB drive for both .lrcat files. However, the size of the .lrdata file is 271 GB. My questions are these: 1.Does Lightroom create the "Cache for Previews" file from the .lrdata file? 2, If so, is the maximum amount of info LR can use to create the Cache for Previews file 200 GB?, and 3. Will your suggestions be a work around for this 200 GB limit?
1. "Cache for Previews" is a folder named "{Catalog} Previews.lrdata".
2. There is no size limitation that I am aware of, other than disk space.
3. Assuming there is no limitation other than disk space, then yes.
Rob

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Can .lrcat and .lrdata files be on different drives?

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