Hard disk drive off track event method and device

A method comprising:

• beginning a first data operation on a first track of a hard disk surface, the first data operation including either writing or reading user data to or from the first track;
• detecting an off track event interrupting the first data operation;
• recording a first location of the off track event during the first data operation;
• recording a second location that the first data operation recovered from the off track event to define an error region between the first location and the second location;
• checking for a second data operation to be performed in an adjacent second track, the second data operation including either writing or reading user data to or from the second track;
• and
• performing the second data operation during a revolution of the hard disk immediately following the off track event before re-trying to complete the error region.

A hard disk drive, comprising:

• a hard disk;
• a spindle motor to rotate the hard disk;
• a read/write head to follow a track on the hard disk;
• a storage medium to store computer readable instructions, the storage medium being coupled to the hard disk drive such that when the instructions are executed, the instructions cause the read/write head to perform a number of operations, including:
• beginning a first data operation on a first track of a hard disk surface, the first data operation including either writing or reading user data to or from the first track;
• detecting an off track event interrupting the first data operation;
• recording a location of the off track event during the first data operation;
• checking for a second data operation to be performed in an adjacent second track, the second data operation including either writing or reading user data to or from the second track;
• and
• performing the second data operation during a revolution of the hard disk immediately following the off track event before re-trying to complete the interrupted first data operation.