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Exported Catalogs do I need them?

Community Beginner ,
Mar 09, 2021 Mar 09, 2021

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I use Lightroom Classic on a Mac Deskto and a Macbook and all the original images are stored on a SAN. Over the years I have always exported a years catalog to the SAN without exporting originals of course. I would then import from the catalog into the MacBook so all was upto date. If I used the Macbook to import pictures whilst on the move I would then copy the originals directory to the SAN and import them to the desktop remove and re-import to the Macbook if I use the Macbook at home I import directly to the SAN.

My question is do I really need to keep the catalogs on the SAN as all that information is still in the Library on the Desktop and Macbook, is it a waste of space or something worth keeping, to import from them they have to be copied to either the internal or directly attached disk, or are they a useful backup?.

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correct answers 1 Correct answer

Community Expert , Mar 09, 2021 Mar 09, 2021

"I can't see where in Lightroom to configure the location of the backups..."

 

When you have the Catalog Settings (MENU: Edit > Catalog Settings...) set to create a Backup (on any option other than "Never")-

ScreenShot425.jpg

And you exit Lightroom-Classic, you will see the Catalog Backup dialog where you can [CHOOSE] exactly where, and to which connected drive, the Catalog copy will be saved (in a ZIP folder)-

ScreenShot213.jpg

 

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LEGEND ,
Mar 09, 2021 Mar 09, 2021

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My question is do I really need to keep the catalogs on the SAN as all that information is still in the Library on the Desktop and Macbook, is it a waste of space or something worth keeping, to import from them they have to be copied to either the internal or directly attached disk, or are they a useful backup?

 

Only you can determine if you still need these exported catalogs, by examining what is contained in your current catalog, and examining what is contained in your exported catalogs. No one here across the internet can know this.

 

The proper method of making a backup is to use the built-in Lightroom Classic catalog backup feature on a regular basis. I suppose all of these exported catalogs might be a weak form of backup, but really, the true backup is the one that the Lightroom Classic backup feature creates.

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Community Beginner ,
Mar 09, 2021 Mar 09, 2021

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So I suppose what my question really is, as everything is in the local catalog I run the Lightroom backup weekly as well as Time Machine backup regularly what is held in the catalog that is not in the xmp file for raw files edits?. In the event of a major machine failure I can restore the local catalog but in the event that this can't be done is there enough in the image source directories to recover.  Previews I assume can be easily rebuilt as the Lightroom backup just contains the lrcat file.

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LEGEND ,
Mar 09, 2021 Mar 09, 2021

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XMP files do not contain the following information that is contained in the catalog (might not be a complete list):

 

  • collections
  • pick flags
  • virtual copies
  • edit history sequence
  • slide shows created in Lightroom Classic
  • web pages created in Lightroom Classic
  • photo books created in Lightroom Classic

 

So essentially, using XMP files only, you lose information that is in the catalog; and so backups of your catalog file are the way to restore in case of disk failure.

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Community Beginner ,
Mar 09, 2021 Mar 09, 2021

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Thanks, that is what I needed to know, so my best option is to remove the catalogs previews etc stored on the SAN and replace them with a backup of the Lightroom backups so that in the event of a disk failure I have a copy of the Lightroom backup as well as the image files. I can't see where in Lightroom to configure the location of the backups as it goes to the local disk but I can set up a schedular to back that up to the SAN.

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Community Expert ,
Mar 09, 2021 Mar 09, 2021

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"I can't see where in Lightroom to configure the location of the backups..."

 

When you have the Catalog Settings (MENU: Edit > Catalog Settings...) set to create a Backup (on any option other than "Never")-

ScreenShot425.jpg

And you exit Lightroom-Classic, you will see the Catalog Backup dialog where you can [CHOOSE] exactly where, and to which connected drive, the Catalog copy will be saved (in a ZIP folder)-

ScreenShot213.jpg

 

Regards. My System: Lightroom-Classic 13.2 Photoshop 25.5, ACR 16.2, Lightroom 7.2, Lr-iOS 9.0.1, Bridge 14.0.2, Windows-11.

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Community Beginner ,
Mar 10, 2021 Mar 10, 2021

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Thanks for that, that worked so I can now happily save some space on my SAN as the catalogs and previews took up 33GB and although I still have over 1TB free I can use that for a lot of images.

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