Integrated circuit device, data storage array system and method therefor

摘要

An integrated circuit device comprises a data storage array controller for providing data storage array functionality for at least one data storage array. The data storage array controller comprises an address window controller arranged to receive at least one data storage device access command, and upon receipt of the at least one data storage device access command the address window controller is arranged to compare a target address of the at least one data storage device access command to an address window for a target storage device of the at least one data storage device access command, and if the target address is outside of the address window for the target storage device, block the at least one data storage device access command.

主权项

1. An integrated circuit device comprising:
a data storage array controller comprising an address window controller to receive a data storage device access command, to compare a first target address of the data storage device access command to a first address window for a first target storage device of the data storage device access command, and, if the first target address is outside of the first address window, to block the data storage device access command, substitute pseudo data for data corresponding to the first target address of the first target storage device, and initiate data recovery to recover data stored at the first target address of the first target storage device using the pseudo data to re-compute recovery information, wherein the first target storage device is one of a plurality of data storage devices of a data storage array, and each of the plurality of data storage devices has a different size, wherein the address window controller configures address windows for each of the plurality of data storage devices based on each of the different sizes.