Time Machine and case sensitivity
Hello,
I would like to know if it poses a problem that my external hard drive on which I do Time Machine is in case-sensitive extended OS (journaled), knowing that my Mac's hard drive is in journaled extended OS?
Thank you
Configuration: Mac OS X / Firefox 5.0.1
I would like to know if it poses a problem that my external hard drive on which I do Time Machine is in case-sensitive extended OS (journaled), knowing that my Mac's hard drive is in journaled extended OS?
Thank you
Configuration: Mac OS X / Firefox 5.0.1
3 answers
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Hello,
If you consult this Apple article Mac 1-2-3: Time Machine, there is no problem because Time Machine can handle this format.
A reminder about these two formats:
Mac OS Extended: this is the "understandable" name for HFS+ (Hierarchical File System Plus), a file management system that appeared with Mac OS 8.1 (and still valid on Mac OS X). Improvements made (among others):
- file names are now limited to 255 characters, instead of 31 previously
- file names are encoded in Unicode instead of Macroman: this allows for internationalization of file names
- the maximum file size increases from 2 to the power of 31 bytes to 2 to the power of 63 (more details here)
Journaled: this means that every write on the disk is recorded in a journal. In the event of an unexpected machine crash, the recovery of unwritten data is made easier as a result.
Case-sensitive Mac OS Extended: This format appeared with Intel processors and Mac OS X.4. It is based on HFSX, which is based on HFS+, which in turn is based on HFS. Main improvement: with this option, files named "fred", "Fred", and "FRED" are considered as different files. With the default HFS+, these three files are the same file.
Ritchi
