Status
Currently i have backup disks formatted with FAT32 (for use with all OS), AFS (for OS X-Time Machine) and ext3 (for linux backups). My main backup disks formatted with FAT, because at this time "Mac OS X" did not support anything other.I currently plan to by new disks, so it's time to think about this filesytem-mix (or filesystem-mess).
needed Features
Here are my features, i'm dreaming of:- journalling: my backup disk should be able to hold my data, even if the OS crashes the disk losses power.
- filesize: it would be nice to be able to store at least 4.7GB ISO-DVD-Images (i sometime master the images on one PC, but burn on a differen one) and to store my full-length DVB-?-Movies (captured from TV) on the disk without splitting.
- hardlinks: Do you know Apple's time machine? then you know why hardlinks are something fantastic. you can copy wih "rsync --links-desk=..." and have something like a versioned backup for your data. The best: you do incremental backups, but can delete old backups as if they are full backups.
Possibilities
a bigger and maybe for you better ist is en.wikipedia.org/wiki/Comparison_of_file_systemsFAT32
- OS-Support: excellent
- biggest filesize: 4GB (bad)
- journalling: no, but many tools can repair FAT.
- hardlinks: no
NTFS
- OS-Support: not sufficient:
- win: excellent,
- linux: good (ntfs-3g: read/write),
- mac: native: read-only, ntfs-3g should works
- win: excellent,
- biggest filesize: 16TBGB (but not shure, if anyone but win can read >4GB-Files)
- journalling: yes (at least with win, not shure what ntfs-3g does here)
- hardlinks: yes
ext3
- OS-Support: good
- win: http://www.fs-driver.org/ -> without journalling
- linux: native
- mac: not shure yet (wikipedia say's: "possible with ext2fsx" -> without journalling)
- biggest filesize: 16GB (enough)
- journalling: yes (not windows)
- hardlinks: yes
Results
I don't like to use NTFS, because it is not open sources and with each new windows version, i'm not shure if features are added that break my linux/mac (write) support. The restore possibillities are either cost money or come from Microsoft. The tools from MS are okay, i guess, but i the need windows to repair. This is dangerous in an emergency! (Just try to find a Windows-Live-CD...)FAT32 is ancient, though it lack eatures of modern files systems. I will use this filessystem on "transfer usb disks" because anyone can read/write this without problems.
ext2/3 i'm not shure about this. the Mac ext2fsx project has a beta from 11/2006, Leopard appeared 10/2007. The filesystem itself has all features i need. Read/write support for windows and Linux is good, but Mac.... .
Anyone knows a better alternative?
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