International Business Machines Corporation

Lenovo (singapore) Pte. Ltd.

Scott J Timmerman

Eric G Thiemann

Josep Cors

Kyle Alan Lucke

Andrew Thomas Tauferner

Andrew T Koch

Jonathan Louis Kaus

Randall Scott Nelson

Brian Gerard Holthaus

Robert W Todd

Russel Roy Garvey

Brent R Inches

A management controller in a distributed network switch may operate on sets of ports such that sets of ports containing a same port are processed serially, and sets that do not contain any of the same ports can be processed in parallel. When receiving a set of ports for processing, the management controller organizes the ports into lanes that each correspond to a unique port. If any of the lanes overlap, subsequent port sets are blocked from proceeding until the lanes of preceding port sets are cleared. If no lanes overlap, the sets may be deemed disjoint, and subsequent port sets may be processed in parallel.

Selective locking of operations on joint and disjoint sets

The present invention relates to a method for the safe shut down of an operating system. The invention utilizes a shutdown-monitoring program that is running in an initiator operating system to periodically transmit and pass-through SCSI command to a SCSI target to determine if a shutdown operations is to be performed upon the operating system. In response to the SCSI command the SCSI target returns data back to the initiator operating system, wherein the shutdown-monitoring program analyzes the data. In the event that the shutdown-monitoring program determines that the operating system is to be shut down, then an operating system shutdown is initiated using at least one appropriate API that is provided by the operating system.

Method for a SCSI target controller to safely shut down an operating system by the use of a standard SCSI initiator command

Growing community of inventors

Rochester, MN, United States of America

Scott J Timmerman