Select the Partition tab, then set the number of partitions from the pop-up menu below Volume Scheme (use 1 partition unless you need more).

See Troubleshooting item #E7 for a detailed explanation.Ĭ. Most of the time there's no difference, but if the backups are case-sensitive, there may be problems when restoring previous versions of files via the Time Machine browser (the 'Star Wars' display). So if you have, or think you might add, a case-sensitive disk, make your backup disk Mac OS Extended (Case-sensitive, Journaled) now.īut if NO disk/partition being backed-up is case-sensitive, the backup volume can be case-sensitive, but we recommend it be case-ignorant: Mac OX Extended (Journaled). There's no choice: that’s the only way Time Machine can back them up. If ANY disk being backed-up is case-sensitive, then your backups must be case-sensitive also. (Effective with Lion 10.7.x, they may also be encrypted.) Most are Mac OX Extended (Journaled) see if any are Mac OS Extended (Case-sensitive, Journaled). Click each partition in the sidebar (indented under the main line of the drive), and you'll see the Format towards the lower left. Do not use case-sensitive unless you're sure you need it.Ĭheck the Format of all the disk/partitions to be backed-up, via Disk Utility, in your Applications/Utilities folder. That's the default if Time Machine formats it for you, but non-case-sensitive (also known as case-ignorant) is the default for all other volumes. A case-sensitive format means upper-case letters in file names are seen as different from lower-case letters. Case-sensitivity on Time Machine backups.

Time machine format disk