The goal of the logical disk is to provide computer software with what seems a contiguous storage area, sparing them the burden of dealing with the intricacies of storing files on multiple physical units.
For example, Windows NT can create several partitions on a hard disk drive, each of which a separate volume with its own file system.
The operating system either does not know that the hardware with which it is interfacing is a RAID, or knows but still does not concern itself with intricate details of storage.
In case of the latter, specialized management, maintenance and diagnostics software dedicated to that specific RAID may run on the operating system.
[2] Today, the rationale for the logical disk approach starts to be questioned[3] and solutions that offer more flexibility and better abstraction are increasingly needed.