Being the prime storage location of your Mac desktop or laptop, it is the hard drive that stores much of your precious data in it. Inside the physical structure of the hard drive there are many elector-mechanical components, including the Read/Write Head, Spindle Motor, Magnetic Platter, Printed Circuit Board (PCB) etc. All these components have some role to play and they all must be in good health for the smooth functioning of the disk drive. While the motor rotates the platter, the head writes data on the magnetic surface of the platter. PCB is the ultimate master of the hard drive that governs the entire functioning of the drive at physical level.
Apart from this, hard drive has a defined data storage process, which is responsible for the conversion and storage of your data (documents, photos, videos and other files) in a digital format. On the magnetic platter of your Mac hard drive; there are tracks and sectors to store data systematically. However, it is the tiniest magnetized region of the sector, called ‘bits’, which stores the actual digital data.
Above the disk level, the file system of the hard drive and the operating system have important role to play in the storage and accessibility of required data. The file system keeps information of partitions as well as files stored in the hard drive, while it is the operating system that helps storing and retrieving data from the hard drive.
Partitions are the logical separations in the physical memory of the hard drive. In order to store different kinds of files separately on your Mac hard drive, you require creation of multiple partitions. These partitions not only segregate different categories of data stored in the hard drive, but also are the reason behind systematic storage and easy access of the required data.
Sometimes, while initializing the new Mac drive, users do not have the exact idea on how many partitions they actually require. This usually leads to the repartitioning of their existing partitions to form more number of volumes. Disk Utility helps in repartitioning of your existing Mac partition, in which one of your new partitions will contain the data in the original partition. However, as repartitioning involves some kind of disk initialization operation, it is always suggested to take complete backup of the original Mac partition before performing any repartitioning operation.
Note that ‘Disk Utility’ is the inbuilt Mac application that can be used for partitioning or repartitioning of Mac hard drive. However, some users either being new to Mac or being non-technical do not find Disk Utility comfortable to use. All such Mac users, who need a friendlier and interactive graphical user interface based Mac partitioning utility, can use Stellar Partition Manager. This reliable software provides distinguished options for partition creation, deletion, formatting, and resize. Along with these options Stellar Partition Manager provides another useful option to hide/reveal Mac partitions against unauthorized data access.