I just bought an external hard drive of 320 gb. The default format is FAT32 and I was wondering if it is a good idea to format it to a more modern filesystem.

It is only going to be used with a MAC OS X machine, I don't need windows support.

I was considering:


What do you think?

1 Answer 1


Yes. If it's going to be used with OS X, use the Mac's disk utility to format it HFS+. There's no reason to use NTFS or ZFS if you're using OS X only.

  • Not to mention that NTFS has (by default) no write support on OS X, and I don't even know about the current state of ZFS there.
    – Sven
    May 2, 2011 at 15:32
  • The best reason to change it is the individual file size limits and other sacrifices made for cross-compatibility in using FAT32. If you're using only one OS with it, use the OS's native filesystem. Makes everything a lot easier. May 2, 2011 at 16:36

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