Why is writing huge files slowing down?
Either you don’t use at least NTFS-3G Version 2009.3.8 or your disk space is highly fragmented in a close to full cluster allocation zone, or a highly sparse file is being updated (e.g. a bittorent file, VMware image file). Workaround: Use a software which can compact the disk space (e.g. the free, open source ntfsresize: shrink then enlarge after making a backup). Please note, file level defragmentation, what the built-in Windows defragmenter is only capable, does not help usually. Solution: Please the status information here.
