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Root Disk

A root disk is a part of the storage space (typically a hard drive) on which the operating system is installed and houses the root directory of the OS. It is originated from the operating system template at the time of installation. A root disk has a fixed space allocated to it by the operating system; therefore, its size it cannot be expanded further. The amount of space allocated to the root disk depends on the size of the OS template installed. Furthermore, storage space subscriptions do not consider the space that is used as root-disk a part of the subscription

Points to Remember

  • A root disk is the only source from which the operating system can be booted because the operating system is installed on it. A data disk cannot be used for booting the OS.
  • It is recommended not to clutter the root disk with too many applications and data as it can cause space shortage and may likely lead to performance issues.