cooky560 Veteran Posted December 23, 2012 Veteran Share Posted December 23, 2012 Basically I decided to try using time machine on a new USB drive, since my old one went kaput and is now in the trash. And I noticed an odd discrepancy: Computer: Disk Usage on Volume HDD 101.52GB FS: HFS+ (Journaled) Time Machine Backup: Backup size 126.4GB FS: HFS+ (Journaled, Encrypted) OSX 10.8.2 Now since Time Machine doesn't backup caches, and various other things, surely the Time Machine Backup should be SMALLER not ~20gb larger? Link to comment Share on other sites More sharing options...
cooky560 Veteran Posted December 24, 2012 Author Veteran Share Posted December 24, 2012 Bump, anyone? Link to comment Share on other sites More sharing options...
.Neo Posted December 25, 2012 Share Posted December 25, 2012 Time Machine stores and keeps snapshots of your files each 24 hours. Obviously your backup size will start exceeding the used space on your Macintosh HD at some point. It all depends on how frequently you modify and add files. Link to comment Share on other sites More sharing options...
cooky560 Veteran Posted December 25, 2012 Author Veteran Share Posted December 25, 2012 That's a nice theory Neo, apart from it's the first backup I've made on this disk. Link to comment Share on other sites More sharing options...
.Neo Posted December 25, 2012 Share Posted December 25, 2012 Time Machine also makes hourly backups that are deleted after 24 hours. Other than that it could be the encrypted file system, but that's just pure speculation on my part. Link to comment Share on other sites More sharing options...
cooky560 Veteran Posted December 26, 2012 Author Veteran Share Posted December 26, 2012 If time machine takes longer than hour to complete the first backup, will it start a second backup (since you said they are hourly)? Link to comment Share on other sites More sharing options...
+Matthew S. Subscriber² Posted January 7, 2013 Subscriber² Share Posted January 7, 2013 It also makes a bootable recovery (if it's the first time backing up) ... Link to comment Share on other sites More sharing options...
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