White Papers

Disk Defragmentation - Background

Overview Fragmentation is a natural occurrence that cannot be avoided, but it can be controlled. Every hard drive stores files in chunks called clusters. In the Microsoft Windows XP operating system, clusters usually are 4,096 bytes in size. A file of that size or smaller needs just one cluster. But a file that is 4,097 bytes in size requires two clusters (leaving most of the second one empty). A 50MB file uses more than 12,200 clusters. In an ideal world, all of a file's clusters would be located adjacent to each other in one long, unbroken chain. With contiguous clusters, a hard drive's performance improves.

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Publisher: Diskeeper
File Format: PDF
Date Published: Jan 23, 2007
Format: White Papers
Topics: Back-up

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How File Fragmentation Occurs on Windows XP / Windows Server 2003

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