slack space Last modified: Tuesday, November 26, 2002
The unused space in a disk cluster. The DOS and Windows file systems use fixed-size clusters. Even if the actual data being stored requires less storage than the cluster size, an entire cluster is reserved for the file. The unused space is called the slack space. DOS and older Windows systems use a 16-bit file allocation table (FAT), which results in very large cluster sizes for large partitions. For example, if the partition size is 2 GB, each cluster will be 32 K. Even if a file requires only 4 K, the entire 32 K will be allocated, resulting in 28 K of slack space. Windows 95 OSR 2 and Windows 98 resolve this problem by using a 32-bit FAT (FAT32) that supports cluster sizes smaller than 1K.
•E-mail this definition to a colleague• For internet.com pages about slack space . Also check out the following links! Cutting the Slack (or maybe the Fat!) File fragmentation, one of the vagaries of the FAT file system, has garnered considerably more attention in recent years with the advent of hard drive sizes above 1 GB in size.	Data Storage File Management Measurement cluster FAT32 file allocation table partition Give Us Your Feedback Shopping slack space Products Compare Products,Prices and Stores Shop by Category: Sport and Outdoor 22 Store Offers Kitchen 19 Store Offers Garden 0 Store Offers Luggage 2 Store Offers