System and method for improving cache performance

摘要

A method, computer program product, and computing system for receiving a Mode Select command concerning a single LUN from each of a plurality of potential hosts. Each Mode Select command defines control information and host identifier information concerning the potential host associated with the Mode Select command. The received Mode Select commands are processed serially and in accordance with the order in which the Mode Select commands were received. The first Mode Select command received is accepted and subsequent Mode Select commands received are rejected, thus defining an accepted Mode Select command and one or more rejected Mode Select commands. The control information and host identifier information included within the accepted Mode Select command are written to a buffer associated with the single LUN. The buffer includes a control field and a GUID field.

主权项

1. A computer-implemented method comprising:
receiving a Mode Select command concerning a single LUN from each of a plurality of potential hosts, wherein each Mode Select command defines control information and host identifier information concerning the potential host associated with the Mode Select command, wherein the control information of each Mode Select command includes a request for control of the single LUN by each of the plurality of potential hosts; processing the received Mode Select commands serially and in accordance with the order in which the Mode Select commands were received, wherein the first Mode Select command received is accepted and subsequent Mode Select commands received are rejected, thus defining an accepted Mode Select command and one or more rejected Mode Select commands; and writing the control information and host identifier information included within the accepted Mode Select command to a buffer associated with the single LUN, wherein the buffer includes a control field and a GUID field.