Hi Ronni, thanks for asking this one and sorry I wasn’t a little clearer. The two Photos libraries are on a 1TB external drive attached to the MBP USB port. The two libraries are the only two files on the external drive (formatted OSX Extend Journaled). The TM Options panel is set to include the external drive in the backup of Jo’s MBP.
The Time Machine Backup of Jo’s MBP is located on the Time Capsule (with 3TB internal drive) - so not sharing location with the Photos library. For many years this has worked faultlessly with the single library on the external drive, all I have done is created a new Photos library alongside the existing Jo’s Photos library. It’s a puzzle. I do remember many years ago you let the group know of an app or program that allowed one to look into the contents of previous backups. If you’re able to remind me of this program, I can look into it directly and find out what the contents of that back up last night were. Regards Pete > On 10 Feb 2019, at 11:43 am, Ronni Brown <[email protected]> wrote: > > Hello Peter, > > I’m not sure if I understand your Time Machine Backup of these two Photos > Library’s? > > WARNING: If a Photos library is located on an external drive, don’t use Time > Machine to store a backup on that external drive. > The permissions for your Photos library may conflict with those for the Time > Machine backup. > > <https://support.apple.com/en-au/guide/photos/back-up-the-photos-library-pht6d60d10f/mac> > > <https://support.apple.com/en-au/HT201517> > > Cheers, > Ronni > > 13-inch MacBook Air (April 2014) > 1.7GHz Dual-Core Intel Core i7, Turbo Boost to 3.3GHz > 8GB 1600MHz LPDDR3 SDRAM > 512GB PCIe-based Flash Storage > > macOS High Sierra 10.13.6 > >> On 10 Feb 2019, at 10:47 am, Peter Crisp <[email protected]> wrote: >> >> HI, during Saturday i was consolidating the photos back up for my mother in >> law (she has no computer) using my wife’s MacBook Pro. My wife has her >> Photos library on an exclusive Photos only external 1TB drive. So I created >> a second library “Carol” on the external drive to import photos for my >> mother in law alongside the existing System library (420GB) for Jo. This >> import all went very successfully but the next time a TM backup came around, >> as expected it recognised the new library (~4GB) but the backup was ~460GB >> in size. Given that the original library was unchanged and nothing in >> particular was changed on the main SSD, why would TM decide the entire >> external drive plus other material it seems, needed backing up again. I >> connected it to the Ethernet to speed this process which finished during the >> night but I am puzzled why TM decided to apparently update such a large >> quantity of data. My TC 3TB drive is now down to 1.2TB remaining which is >> still plenty, but has copped 455GB it didn’t need to and reduced my balance >> unnecessarily. >> >> Any clues why this would happen and how can I undo this other than blowing >> away the whole backup file and redoing a full new backup? >> >> Regards >> >> >> Pete > > > -- The WA Macintosh User Group Mailing List -- > Archives - <http://www.wamug.org.au/mailinglist/archives.shtml> > Guidelines - <http://www.wamug.org.au/mailinglist/guidelines.shtml> > Settings & Unsubscribe - > <http://lists.wamug.org.au/listinfo/wamug.org.au-wamug>
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