Patent ID: 8736993

Claim:
A hard-disk drive (HDD) configured to utilize multiple LUNs, comprising: a plurality of heads attached to a plurality of sliders; a plurality of disks rotatably mounted on a spindle; a drive motor having a motor shaft attached to the spindle for rotating the disk; a voice-coil motor configured to move the heads to access portions of the disks, wherein the HDD is configured to utilize Shingled Magnetic Recording (SMR); and one or more electronic components configured to: generate a plurality of logic unit numbers (LUNs), including a first and second LUN; assign the first LUN to a first head of the plurality of heads; assign the second LUN to a second head of the plurality of heads; prevent data from being written to more than one side of one of the plurality of disks at any one time; and associate data written by the first head only to the first LUN and data written by the second head only to the second LUN, wherein the first LUN and second LUN are presented to a host system as independent logical devices.