A system includes a host device and a disk drive interfaced with the host
device are described as well as an associated method. The disk drive
includes a magnetic media for storing information using an actuator
arrangement to perform a data access by moving at least one head
proximate to the magnetic media. The information may be subject to
corruption when the disk drive is exposed, during the data access, to a
given stray magnetic field having a given minimum magnetic field
intensity. The given stray magnetic field will not corrupt the
information on the magnetic media with the actuator arrangement
positioned away from the magnetic media. A stray magnetic field
protection arrangement is configured for detecting an ambient magnetic
environment for use in causing the actuator arrangement to park
responsive to the detection of at least the given minimum magnetic field
intensity.