Partitions, Extended Partitions, and Logical Drives
Basic and dynamic hard disks have different properties in terms of partitions, extended partitions and logical drives. That’s why we have to learn the definitions to have a better understanding of the hard disk configurations.
Partitions are separate data areas that exist in a hard disk’s storage space. Suppose that you have one physical hard disk of 500 GB capacity. Further suppose that you want to divide this disk to 100 GB + 200 GB + 200 GB data areas. Each data area is called a partition.
Each partition can either be a primary partition or an extended partition. A primary partition contains only one file system. In Windows, this is the first partition and labeled as C:. An extended partition is a partition that contains secondary partitions. Following our example above, you can make a 100 GB primary partition and a 400 GB extended partition. With our explanation, the 100 GB primary partition has to have only one file system. Under the current Windows technology, this is NT File system (NTFS). You can divide the remaining 400 GB into separate partitions with different sizes, such as 200 GB, 100 GB and 100 GB.
For a partition to become a volume, it has to be formatted with a file system. Again following our example, if we format the 200 GB partition with NT file system, the 100 GB with FAT 32 and the remaining with ext2, then we have 3 logical volumes. The volumes are logical because they are not physical disks, they are formatted partitions (volumes) present on one physical disk.