1# JS API Changes of the File Management Subsystem 2 3The table below lists the APIs changes of the file management subsystem in OpenHarmony 3.2 Beta2 over OpenHarmony 3.2 Beta1. 4 5## API Changes 6 7| Module| Class| Method/Attribute/Enumeration/Constant| Change Type| 8|---|---|---|---| 9| ohos.volumeManager | Volume | diskId: string; | Added| 10| ohos.volumeManager | volumeManager | partition(volId: string, fstype: string, callback: AsyncCallback\<void>): void;<br>partition(volId: string, fstype: string): Promise\<void>; | Updated| 11| ohos.volumeManager | volumeManager | format(volId: string, callback: AsyncCallback\<void>): void;<br>format(volId: string): Promise\<void>; | Updated| 12| ohos.volumeManager | volumeManager | old :<br>getVolumeById(id: string, callback: AsyncCallback\<Volume>): void;<br>getVolumeById(id: string): Promise\<Volume>;<br>new :<br>getVolumeById(volumeId: string, callback: AsyncCallback\<Volume>): void;<br>getVolumeById(volumeId: string): Promise\<Volume> | Updated| 13| ohos.volumeManager | volumeManager | old :<br>format(volId: string, callback: AsyncCallback\<void>): void;<br>format(volId: string): Promise\<void>;<br>new :<br>format(volumeId: string, fsType: string, callback: AsyncCallback\<void>): void;<br>format(volumeId: string, fsType: string): Promise\<void>; | Updated| 14| ohos.volumeManager | volumeManager | old :<br>partition(volId: string, fstype: string, callback: AsyncCallback\<void>): void;<br>partition(volId: string, fstype: string): Promise\<void>;<br>new :<br>partition(diskId: string, type: number, callback: AsyncCallback\<void>): void;<br>partition(diskId: string, type: number): Promise\<void>; | Updated| 15