Method for minimizing adjacent track data loss during a write operation in a disk drive

A method of minimizing adjacent track data loss from shock events occurring during host write operations in a disk drive, the method comprising:

• providing a plurality of adjacent concentric cylinders wherein the cylinders are spaced-apart by a distance and each cylinder includes at least one data track designated for storage of user data;
• allocating the plurality of cylinders into a first set and a second set wherein the cylinders of the first and second sets are interleaved physically with one another;
• assigning a first series of consecutively numbered logical block addresses to the first set of cylinders such that the first series of logical block addresses are associated with data tracks of the first set of cylinders;
• and
• assigning a second series of consecutively numbered logical block addresses, which consecutively follow the first series of logical block addresses, to the second set of cylinders such that the second series of logical block addresses are associated with data tracks of the second set of cylinders;
• wherein a host system generally initially writes data associated with the first series of logical block addresses and postpones writing data associated with the second series of logical block addresses, until data has been written which is associated with substantially all of the first series of logical block addresses, so that the logical block address allocation to the first and second sets of cylinders results in minimizing loss of user data due to shock events causing adjacent track encroachment during host write operations occurring prior to writing user data to the data tracks of the second set of cylinders.