Abstract: A storage operation die collision avoidance system includes a storage subsystem providing a first superblock and a second superblock. A storage operation subsystem is coupled to the storage subsystem and performs first storage operations for the first superblock using a first die in the storage subsystem. The storage operation subsystem then determines second storage operations for performance for the second superblock and, without a fixed die storage operation order, identifies a second die in the storage subsystem that is available to perform the second storage operations for the second superblock while at least some of the first storage operations are performed for the first superblock using the first die in the storage subsystem. The storage operation subsystem then performs the second storage operations for the second superblock using the second die in the storage subsystem.

Abstract: A disk drive is disclosed comprising a head actuated over a disk comprising a plurality of data tracks. A first defect shape is detected during a manufacturing defect scan of the disk. A second defect shape is detected while the disk drive is deployed in-the-field. Whether the first defect shape is connectable to the second defect shape is determined, and when the first defect shape is connectable to the second defect shape, data sectors along a trajectory between the first defect shape and the second defect shape are relocated.