Re: 300 MB update
" Do you believe that Linux filesystems do not get fragmented? Because, you know, they do."
I don't know enough about Linux filesystems to comment, but I'd be surprised.
No proper fileststem suffers from major fragmentation issues if you use less than the recomnended 90% capacity.
Of course, this dossn't mean that files don't get fragmented - sometimes it's necessary.
None of the major unix systems I used to run suffered, neither did anyof the opensource offerings - indeed I remember being asked about this very topic, and on checking on a busy server that hadn't had a partition rebuild in 10 years, fragmentation was about 0.1%
VMS often had issues - mainly because directories had to be contiguous,but I doubt (though don't know) that any Linux partitions suffer the same fate.
And to be pedantic (before someone else says it) - the main thing that affects fragmentation isn't the filesystem type itself, but the driver that writes to it.