DYNAMIC GRANULE-BASED INTERMEDIATE STORAGE

摘要

A data storage system includes data storage and random access memory. A sorting module is communicatively coupled to the random access memory and sorts data blocks of write data received in the random access memory of the data storage. A storage controller is communicatively coupled to the random access memory and the data storage and being configured to write the sorted data blocks into one or more individually-sorted granules in a granule storage area of the data storage, wherein each granule is dynamically constrained to a subset of logical block addresses. A method and processor-implemented process provide for sorting data blocks of write data received in random access memory of data storage. The method and processor-implemented process write the sorted data blocks into one or more individually-sorted granules in a granule storage area of the data storage, wherein each granule is dynamically constrained to a subset of logical block addresses.

主权项

1. A method comprising:
writing data blocks grouped as subsets of logical block addresses to multiple individual granules in a granule storage area of data storage, wherein the multiple individual granules are recorded in a single shingled magnetic recording band; sorting together data blocks of at least two of the multiple individual granules to form a compacted granule; and writing the compacted granule to a destination storage area.