Photos library files

I just recently upgraded my Macbook Pro to Yosemite. I also got the update for iPhoto, so it works in the new OS. I have noticed a second file that is being created when I import my older iPhoto library into Photos. What is that file and how do I deal with it when doing backups? Do I need the original iPhoto library file AND the newly created 2nd file if I plan to only use iPhoto? Can the 2nd file stand alone and be used by photos- or do I need both? Thanks.

iMac, OS X Mavericks (10.9.1), Also iPad2, MBP (10.10.4), iPhone 4

Posted on Jul 22, 2015 8:44 AM

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6 replies

Jul 22, 2015 1:55 PM in response to Eric Root

Thank you both for responding. I am attaching a photo of my photo library folder as a reference. I think you both kind-of answered the question. If I understand it right, the first time I opened Photos and dragged the iPhoto library into it, it took a while to convert the library. I am assuming the 2nd file is the result of that conversion. If I still want to use iPhoto- I need to keep the iPhoto lib. If I plan to use Photos, I need to keep the Photo library, but can delete the iPhoto library. Is that correct? It seems Photos is more efficient- it's library file is smaller. But, I suspect that if I got rid of the iPhoto file then I would not be able to open the library in iPhoto- right? And, I am guessing any pictures I put into Photos, will not be retrievable in iPhoto- since the Photo lib is not readable. Right?


Below, I have 2 libraries. Both have been loaded into Photos also, so there is a corresponding photos file. If there is a link that explains the library file rules, that would be great. Thanks.

Mark


User uploaded file

Jul 22, 2015 5:24 PM in response to Markcw98a

Your question is not clear


each library is stand alone and complete and does not require the others - However deleting the iPhoto library saves little space as there is only one set of original photos and preview photos both hard linked to each library - Photos saves disk space by sharing images with your iPhoto or Aperture libraries - Apple Support


For a few months until you are positive that you do not need or want iPhoto I would keep both the iPhoto and the Photos libraries


LN

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Photos library files

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