"Regular" defragmentation is better than "random" defragging, but how often is "regular"? It depends on your PC. Here are extracts from my own article on why you need to defrag your hard drive:ĭefragmentation isn't the only strategy to make a PC run faster, but it is one of the strategies that are useful. I have included some of the pages, and you'll get the entire file when you download a trial version of UltimateDefrag.
The Paragon Total Defrag 2007 (US$29.95) help file has an excellent summary of disk defragmentation, with diagrams.ĭiskTrix UltimateDefrag (US$39.95) has a help file that explains the theory in more detail.
Hard drive utilities like SpinRite (US$89) will even stop operations and warn you if the drive is overheating. Utilities like HDTune (free) can warn you if your drive is getting too hot. UltimateDefrag, JkDefrag, PerfectDisk) take this into account when deciding where to place the files.Īs the drive works, its temperature rises, especially in the confined space of a laptop. So a file placed near the "start" of the drive (the outside) can be accessed and read quicker than the files near the "end" of the drive. Notice how the speeds change from 33MB/sec to 18MB/sec, with the average around 23MB/sec. The blue line in the graph below shows data transfer rates, and the yellow spots show seek times, with the "outside" of the drive on the left, and the "inside" in the right. The data on the "outside" of the drive can be accessed faster than the data closer to the spindle. One of the factors that causes a drive to overwork is the mis-placement of files on the drive, usually caused by file fragmentation, but not always.Īnother factor relating to hard drive performance is the way the hard drive works. So if you can get your hard drive to perform well, your system performs well. That cost me more in lost time than the cost of the entire laptop!īy comparison with the speed of RAM and the speed of the processor, the hard drive is the slowest part of most systems (excluding peripherals). When my laptop was hit by a trojan, it took me a week to reinstall everything. Hard drives are expensive, and the data on them even more so. Best Windows Disk Defragmentation Utilities
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