Data storage device communicating servo information between servo channels of multiple actuators

A data storage device comprising:

• a first disk comprising first servo sectors distributed around a circumference of the first disk;
• a first actuator configured to actuate a first head over the first disk;
• a first servo channel configured to control the first actuator;
• a second disk comprising second servo sectors distributed around a circumference of the second disk, wherein the second servo sectors are offset circumferentially from the first servo sectors;
• a second actuator configured to actuate a second head over the second disk;
• a second servo channel configured to control the second actuator;
• and
• control circuitry comprising the first and second servo channels, wherein while the first and second disks are rotating, the control circuitry is configured to:
• read one of the first servo sectors to generate first servo information;
• transmit the first servo information from the first servo channel to the second servo channel;
• read one of the second servo sectors to generate second servo information;
• generate a second command value based on the first servo information and the second servo information;
• and
• control the second actuator based on the second command value.