Excessive access to the hard disk after closing Lightroom

Question

Hi there! After closing, Lightroom Classic accesses my hard drive excessively for around 6 minutes, so that it is not possible to continue working. The hard disk is used 100%. It is the hard disk with the photos, the catalog is on another hard disk (ssd). I have 110.000 photos in the catalog.

Does any of you know what Lightroom is doing? Something like this should only happen if you optimize the catalog, which I only do once a week.

It seems that Lightroom wants to kill my hard disk.

best regards

Michael J. Hoffman · Answer

Is your catalog located in a folder that is managed by an online sync service such as OneDrive or DropBox? I have noticed therrible thrashing with the Lightroom preview cache in this kind of situation, as Lightroom tries to finish writing thousands of preview files while OneDrive or DropBox is trying to sync. I used to have my catalog on Dropbox as a convenient way to back it up and share between computers, but the disk thrashing became to heavy in recent years, and I've moved my catalog out of a synced location.

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