An anonymous reader writes "I recently got an external hard disk with USB 2.0/Firewire/Firewire 800/eSATA to be used for backup and file exchange — my desktop runs Linux (with a Windows partition for games but no data worth saving), and the laptop is a MacBook Pro. So the question popped up: what kind of filesystem is best for this kind of situation? Is there a filesystem that works well under Linux, MacOS X, and Windows? Linux has HFS+ support but apparently doesn't support journaling and there's also an issue with the case-insensitivity of HFS+. Are we stuck with crummy VFAT forever or are there efforts underway to bring a modern filesystem (I'm thinking something like ZFS, BeFS, or XFS) to all platforms? Or are there other clever solutions like storing ISO images and loop-mounting those?"
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