Slack space or sometimes referred to as file slack is the area between the end of a fileand end of the last cluster or sector used by the file in question. Area is an area that will not be used again to store the information there, so the area is "wasted" useless. Slackspace is common in file systems that use a large cluster size, while the file system that uses a small cluster size can organize the storage media more effectively and efficiently.Amount of wasted disk space can be thought is estimated by multiplying the number offiles (including the number of directories) with half the size of a cluster. For example, a 10 000 personal computer that stores files in a file system that uses a cluster size of 4kilobytes will have approximately 10 000 x 2 MB ~ = 20000 KB. On a large file server,slack space and even reached the size of tens of gigabytes.
The picture is an example of allocating a large file with 14 kb. because the cluster sizeused was 4 kb, then the file system will mengalokasian 4 menyimpanya.Tiga fruit clusterto cluster can be used as a perfect start, but the last cluster occupied only half thecluster. unused half cluster that is what is called the slack. slack space can not be usedby the file system to store the data further, because it is a cluster file system using theunit as the smallest unit.
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