MAGNETIC DISK DEVICE AND HEAD ADJUSTMENT METHOD

• Main Authors: TAKEO AKIHIKO, OTAKE MASAYA
• Format: Patent
• Language: English; Japanese
• Published: 09.09.2021
• Subjects: INFORMATION STORAGE; INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORDCARRIER AND TRANSDUCER; PHYSICS

To provide a magnetic disk device and a head adjustment method, with which it is possible to improve reliability.SOLUTION: A magnetic disk device pertaining to the present embodiment comprises: a first disk having a first face; a second disk having a second face different from the first face; a first head having a first write head for writing data to the first face with first recording density and a first assist element for generating first energy to increase write performance by the first write head toward the first face; a second head having a second write head for writing data to the second face with second recording density and a second assist element for generating second energy to increase write performance by the second write head toward the second face; and a controller for changing at least one of the first and second recording densities in accordance with a first recording capacity writable to the first disk by the first head and a second recording capacity writable to the second disk by the second head.SELECTED DRAWING: Figure 1 【課題】 信頼性を向上可能な磁気ディスク装置及びヘッドの調整方法を提供することである。【解決手段】 本実施形態に係る磁気ディスク装置は、第１面を有する第１ディスクと、前記第１面と異なる第２面を有する第２ディスクと、前記第１面に第１記録密度でデータをライトする第１ライトヘッドと、前記第１ライトヘッドによるライト性能を高める第１エネルギを前記第１面に向かって発生させる第１アシスト素子とを有する第１ヘッドと、前記第２面に第２記録密度でデータをライトする第２ライトヘッドと、前記第２ライトヘッドによるライト性能を高める第２エネルギを前記第２面に向かって発生させる第２アシスト素子とを有する第２ヘッドと、前記第１ヘッドで前記第１ディスクにライトできる第１記録容量と前記第２ヘッドで前記第２ディスクにライトできる第２記録容量とに応じて前記第１記録密度及び前記第２記録密度の少なくとも一方を変更するコントローラと、を備える。【選択図】図１