When a hard disk is formatted, a Master Boot record (MBR) is created. MBR consist of executable code called Master Boot Code and Partition Table information of the disk.
NTFS cluster size is depending on the size of the volume. However, when formatting NTFS volume, you can specify the cluster size up to 64Kb. If you did not specify the cluster size, default cluster size is used. Figure 3 illustrated the cluster size base on volume size.
Volume Size | Cluster Size |
7MB – 512MB | 512 |
512MB – 1024MB | 1KB |
1025MB – 2GB | 2KB |
2GB – 2TB | 4KB |
Figure 3 Cluster size for each volume size.
NTFS disk space efficiency actually determine by the cluster size of NTFS volume because it uses smaller cluster size than FAT file system. The smaller the cluster size, the more efficient the disk is because unused space in cluster that have been used cannot be use to store file. NTFS also support more clusters which is nearly unlimited and it able to create larder volume up to 2Tb.
When a hard disk is formatted with NTFS file system, it can be divided into four components which are:
- Boot sector
- Master File Table
- Master File Table Copy
- File system data
Every part of this component builds NTFS file system. Bellow is the illustrated of NTFS file system Components.
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