Efficient burst data verify in shingled data storage drives

摘要

To provide enhanced operation of data storage devices and systems, various systems, apparatuses, methods, and software are provided herein. In a first example, a data storage device is presented with storage media comprising a cache storage region and a shingled magnetic recording (SMR) storage region that is divided into burst zones. A storage control system receives write operations and accumulates write data in the cache storage region until a commit threshold condition. Responsively, the storage control system transfers the write data into a burst zone of the SMR storage region, and verifies the write data written into the burst zone once the burst transfer is complete. Responsive to data verify errors in the write data written into the burst zone, the storage control system writes data associated with the data verify errors into an exception location associated with the burst zone.

主权项

1. A data storage device, comprising:
storage media comprising a cache storage region and a shingled magnetic recording (SMR) storage region that is divided into a plurality of burst zones; a storage control system configured to receive write operations over a host interface for storage of write data by the data storage device and accumulate the write data in the cache storage region until a commit threshold condition; responsive to the commit threshold condition, the storage control system configured to burst transfer the write data into at least a first burst zone of the SMR storage region; the storage control system configured to verify the write data written into the first burst zone once the storage control system completes the burst transfer of the write data into the first burst zone; and responsive to data verify errors in the write data written into the first burst zone, the storage control system configured to write data associated with the data verify errors into an exception location associated with the first burst zone.