This can reduce the amount of unnecessary drive head movement and resulting in better performance ( and slightly decreased wear of the drive ) for workloads where multiple read\/write requests are outstanding at the same time . This situation most often occurs in server-type applications . This can reduce the amount of unnecessary drive head movement , resulting in increased performance ( and slightly decreased wear of the drive ) for workloads where multiple simultaneous read\/write requests are outstanding , most often occurring in server-type applications .