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multiple files "Lightroom Catalog-v10 Previews.lrdata" on Mac take too much space

Community Beginner ,
May 12, 2021 May 12, 2021

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I am desperate, never was good at these things (handling data files) and perhaps doing something wrong...

My Mac has only 500GB and Lightroom data files take 74 GB

Can something be done to reduce teh size ?

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How to, Mac, Presets or profiles

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Adobe Community Professional ,
May 12, 2021 May 12, 2021

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You can place this on another drive, you can change your pref's for previews (for example, Automatically delete 1:1 previews after....), let's see your Catalog Settings>File Handling dialog. 

Author “Color Management for Photographers" & "Photoshop CC Color Management" (pluralsight.com)

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Community Beginner ,
May 13, 2021 May 13, 2021

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Thank You !!!

I am trying that today. I will now move the Lightroom data from Pictures to an external drive, delete it on my Mac and see if Lightroom works 🙂 

Actually I realised, when prompted today by Lightroom to create a catalogue, and I chose a different path to the previous version. So I ended up with catalogues in 3 places.

I have already deleted the entire iCloud Archive (googled it that it is OK to do) and it had no negative impact on Lightroom.

lrdata in Documents.png

lrdata in iCloud archive.png

lrdata in Pictures.png

   

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Adobe Community Professional ,
May 12, 2021 May 12, 2021

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If I understand from your post header that you have multiple  catalognamePreviews.LRDATA files, then-

If you only use ONE catalog then there is only a need for its ONE associated  ...Previews.LRDATA file. Any others can be deleted.

Deleting the ...Preview.LRDATA files is not really a problem, as LrC will re-build these if and when needed.

What is a Lightroom catalog? | The Lightroom Queen

 

Regards. My System: Lr-Classic 10.4, Photoshop 22.5, Lightroom 4.4, Windows-10 Nikon DSLR.

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Adobe Community Professional ,
May 12, 2021 May 12, 2021

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Besides the tips to reduce disk space: major versions of LrC tend to create new catalog files. The old ones can be deleted after you decided that the version is stable. It's however always wise to make a backup before deleting.

ABAMBO | Hard- and Software Engineer | Photographer

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LEGEND ,
May 13, 2021 May 13, 2021

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Where are your photos stored? These take up much more space than the previews. If the photos are stored on the internal drive, you need to move them to an external drive (see "Part 2 — Updating Photo Location" of this document for instructions)

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Community Beginner ,
May 13, 2021 May 13, 2021

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I keep the pictures on an external drive, due to space limitations on my Macs

SSD is so expensive when you go above 500 GB on Mac 😞

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LEGEND ,
May 13, 2021 May 13, 2021

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No need for photos to be on a SSD.

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