Patent Number: 7,613,860

Title: Prioritization of interrupts in a storage controller based on interrupt control directives received from hosts

Abstract: A storage controller receives an interrupt control directive from a host. The storage controller generates a first plurality of interrupts, in response to access requests received from the host for at least one storage device coupled to the storage controller, wherein the first plurality of interrupts indicates whether access to the at least one storage device is allowed to the host. The storage controller generates a second plurality of interrupts, wherein the second plurality of interrupts comprises unsolicited interrupts for the host that are different from the first plurality of interrupts. The storage controller controls how many of the first plurality of interrupts and how many of the second plurality interrupts to send to the host, based on the received interrupt control directive.

Inventors: Clark; Brian Dow (Tucson, AZ), Coronado; Juan Alonso (Tucson, AZ), Peterson; Beth Ann (Tucson, AZ)

Assignee: International Business Machines Corporation

International Classification: G06F 13/24 (20060101); G06F 13/26 (20060101); G06F 13/36 (20060101)

Expiration Date: 1/03/02017