公开(公告)号：JP2001249812A

公开(公告)日：2001-09-14

申请号：JP2001034451

申请日：2001-02-09

Applicant: IBM

Inventor： CRONK MATTHEW SLADE ,  MCBREARTY GERALD F ,  MULLEN SHAWN PATRICK ,  SHIEH JOHNNY MENG-HAN

IPC: G06F9/46 ,  G06F9/445

Abstract: PROBLEM TO BE SOLVED: To provide a method and a system to simultaneously execute plural operating systems from the same shared system resource on different computers. SOLUTION: Each machine reads a master boot record without reservation and decides partition of an operating system to be booted. Each machine performs the reservation of basic exclusive writing continuation to access operating system boot partition next. Each machine continuously performs another reservation of basic exclusive writing continuation to access the operating system partition itself. Different pieces of operating system partitions are allocated to each of the machines even when they executes the same operating system.

公开(公告)号：BR0005790A

公开(公告)日：2001-11-27

申请号：BR0005790

申请日：2000-11-22

Applicant: IBM

Inventor： CRONK MATTHEW SLADE ,  MCBREARTY GERALD FRANCIS ,  PATRICKMULLEN SHAWN ,  SHIEH JOHNNY MENG-HAN

IPC: G06F9/46 ,  G06F9/445

Abstract: A method and system for running, on different computers at the same time, multiple operating systems from the same shared system resource is provided. This is accomplished, for example, by using persistent elemental disk reservations. Each machine reads the master boot record without reservation to determine the partition of the operating system to be booted. Each machine then makes an elemental exclusive write persistent reservation for accessing the operating system boot partition. This is followed by each machine making another elemental exclusive write persistent reservation for accessing the operating system partition itself. Each machine is assigned a different operating system partition even if they are running the same operating system. The unique reservation key for these reservations is created from at least on of a Processor ID, a Cluster ID, a Multiple Processor partition ID, a Non-Uniform Memory Access complex ID, and/or a Non-Uniform Memory Access node ID.

公开(公告)号：CA2332084A1

公开(公告)日：2001-08-17

申请号：CA2332084

申请日：2001-01-23

Applicant: IBM

Inventor： MULLEN SHAWN PATRICK ,  SHIEH JOHNNY MENG-HAN ,  MCBREARTY GERALD FRANCIS ,  CRONK MATTHEW SLADE

IPC: G06F9/46 ,  G06F9/445 ,  G06F15/16 ,  G06F17/00 ,  G06F15/76

Abstract: A method and system for running, on different computers at the same time, multiple operating systems from the same shared system resource is provided. This is accomplished, for example, by using persistent elemental disk reservations. Each machine reads the master boot record without reservation to determine the partition of the operating syste m to be booted. Each machine then makes an elemental exclusive write persistent reservation for accessing the operating system boot partition. This is followed by each machine making another elemental exclusive write persistent reservation for accessing the operating system partition itself. Each machine is assigned a different operating system partition even if they are running the same operating system. The unique reservation key for these reservations is creat ed from at least on of a Processor ID, a Cluster ID, a Multiple Processor partition ID, a Non-Unifo rm Memory Access complex ID, and/or a Non-Uniform Memory Access node ID.

公开(公告)号：CA2332084C

公开(公告)日：2006-08-01

申请号：CA2332084

申请日：2001-01-23

Applicant: IBM

Inventor： CRONK MATTHEW SLADE ,  SHIEH JOHNNY MENG-HAN ,  MULLEN SHAWN PATRICK ,  MCBREARTY GERALD FRANCIS

IPC: G06F9/445 ,  G06F9/46 ,  G06F15/16

Abstract: A method and system for running, on different computers at the same time, multiple operating systems from the same shared system resource is provided. This is accomplished, for example, by using persistent elemental disk reservations. Each machine reads the master boot record without reservation to determine the partition of the operating syste m to be booted. Each machine then makes an elemental exclusive write persistent reservation for accessing the operating system boot partition. This is followed by each machine making another elemental exclusive write persistent reservation for accessing the operating system partition itself. Each machine is assigned a different operating system partition even if they are running the same operating system. The unique reservation key for these reservations is creat ed from at least on of a Processor ID, a Cluster ID, a Multiple Processor partition ID, a Non-Unifo rm Memory Access complex ID, and/or a Non-Uniform Memory Access node ID.