Magnetic disk device

• Main Authors: ABE TAKAO, HARA TAKESHI, NITTA TATSUO
• Format: Patent
• Language: Chinese; English
• Published: 04.04.2023
• Subjects: INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; PHYSICS

Provided is a magnetic disk device in which the time required for a reordering operation is suppressed. The controller assigns numerical value information of a first scale corresponding to the order of arrangement of first segments to a plurality of first segments obtained by dividing a recording surface of a magnetic disk in a radial direction in units of first storage regions into which a first amount of data can be written by an SMR method. The controller assigns numerical value information of a second scale corresponding to the order of arrangement of the second segments to a plurality of second segments obtained by dividing the recording surface in the radial direction in units of second storage regions into which the first amount of data can be written by the CMR method. The controller sets the one or more first segments and the one or more second segments to be accessible. The controller selects one of the first scale and the second scale, and converts the numerical value information of the section of