Originally Posted by lambchops511
WOW! THANKS! I did not know this command. Is 86 extents good / bad for a 30 G file? I am guessing its pretty good? That probably means if I want better IO perf I need to hit SSDs?
Yes. Generally, anything above around 50MB/fragment is, "good enough," and that's over 300MB/fragment. Even with some tiny fragments mixed in there, that's good enough to just not worry about it. Any newish HDD (500GB/platter or denser) aught to be able to read such a file at 100MB/s, no sweat.