A disk drive includes a head and a disk, spiral patterns are located on the disk, and the disk drive self-writes servo patterns on the disk using the spiral patterns as a reference for servoing the head. In an embodiment, the disk drive uses preliminary servo patterns to determine repeatable runout of the spiral patterns. In another embodiment, the disk drive reads each spiral pattern with multiple timing windows.

 
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< Spin valve magnetoresistance sensor and thin film magnetic head

< Disk drive having a disk including a servo burst pattern that improves the signal to noise ratio during track following for writing

> Servo synchronization validation techniques based on both servo synch marks and wedge identifiers in a rotating media storage device

> Adaptively estimating a read access time to a second track based upon the binned radial position of the second track within a rotating media storage device
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