PREFERRED ZONE SCHEDULING

摘要

A data storage system and associated method are provided wherein a policy engine continuously collects qualitative information about a network load to the data storage system in order to dynamically characterize the load and continuously correlates the load characterization to the content of a command queue of transfer requests for writeback commands and host read commands, selectively limiting the content with respect to writeback commands to only those transfer requests for writeback data that are selected on a physical zone basis of a plurality of predefined physical zones of a storage media.

主权项

1. A data storage system connectable to a computer network, the system comprising:
a data storage media having a plurality of zones, each zone allocated to store a book of data; and a nontransitory, tangible computer memory having computer instructions configured to populate a command queue with transfer requests to a plurality of books when the network load is a substantially uniform distribution of the data storage media, but to populate the command queue with only the transfer requests for a selected book when the network load is a substantially non-uniform distribution of the data storage media.