Lightroom filling up C drive with previews and history?

[sdinweoinasd9384152]

I just started using LrC after a 6 month pause, and noticed that it's filling up my C drive as I start editing DNG files. After maybe 15 minutes it's used 10GB on my C drive. If I close LrC, free space will revert back to what it was before I opened LrC. This didn't happen before with older versions of LrC.

I have my catalog and  camera raw cache on D drive.

Are these previews and history states? How can I get them to be stored together with the raw cache on D drive?

[GoldingD]

How large do you allow your Camera RAW CACHE to get?? Is it enough?

[sdinweoinasd9384152]

Camera RAW cache was originally set to 5.0 GB on D drive.

I've now purged the cache, and increased it to 10.0 GB on D drive.

LrC seems to have stopped writing to C drive now.

It seems that once the cache is full, it will write to C drive?

I thought the normal behavior for cache would be to write over the oldest files in the cache when full?

Not write to somewhere else or require you to manually purge cache?

[GoldingD]

Some points towards your questions in:

https://weddingrebels.co/blogs/lightroom/how-to-clear-lightroom-cache

https://www.bwillcreative.com/how-to-clear-your-lightroom-cache/

If the Camera RAW CACHE gets full, then the info written to it needs to go somewhere. I have not found a document stating where. The paging file (windows), temporary folder? RAM,? Somewhere else?

By default the Camera RAW CACHE does not empty/purge on its own, or by a LrC instruction, you need to purge it. But their is a way to have it purge based on how full it is (in the first link)

Additional info:

https://helpx.adobe.com/lightroom-classic/kb/optimize-performance-lightroom.html