Patent ID: 11861173
Assignee: FELICITY TAIWAN CORPORATION
Field: Computer technology (Electrical engineering)
Classification: CPC G | IPC G

Claim 9:
10. A storage device comprising a drive arm having at least two read-write heads capable of accessing data synchronously, the storage device comprising:
at least one hard disk, wherein each hard disk is divided into at least two regions;
a drive arm, having at least two read-write heads, wherein each read-write head reads and writes data in a corresponding region of the at least two regions; and
a control unit, separating first data to be written into a plurality of write-data, wherein each write-data corresponds to a different read-write head of the at least two read-write heads for writing said first data synchronously, wherein the drive arm has four read-write heads, wherein each hard disk is divided into four regions, and the hard disk is in the state after it is formatted, wherein a rule for reordering serial numbers of the sectors are: under the same track, if a track in one of the regions is bad, a track in one of the regions is marked as not usable if said track is bad for all of said four read-write heads.