Not that I´m an expert on file systems but,<br>fragmentation on a large file is natural and not a disaster. There is read ahead and buffers that will make up for fragments, if 4GB is cut up in 64MB chunks it probably won´t be a problem, when the fragments get really small performance will go down the drain though.
<br>An ordinary myth box does sequential IO and not that many parallell streams to/from disk.<br><br><br>/Henrik<br>