Abstract: A logical partitioned computer system. A hypervisor includes a resource management table for managing resources assigned to the hypervisor and an assigning/collecting unit for assigning and collecting resources to logical partitions. Each logical partiion has a guest resource monitoring unit for monitoring the amount of the resource being used out of the amount of the resource assigned to the logical partiion and an adding/separating unit for requesting addition and separation of a resource to the assigning/collecting unit based on results of monitoring. In response to the request, assigning/collecting unit searches resource management table, assigns a resource to logical partition when a reserve resource exists in case of an assignment request, and collects a resource as a reserve resource in the resource management table in case of a collection request.

Abstract: Computer including at least a first and a second interface coupled to a network. The first interface holds a first address, and the second interface holds the first address and a second address. The computer transmits a packet having the first address as a source address from the first interface, and transmits a packet having the second address as a source address from the second interface. When it is determined that a state of a communication route coupled to the first interface is not normal, the computer transmits a packet having the first address as a source address from the second interface.

Abstract: A logical partitioned computer system. A hypervisor includes a resource management table for managing resources assigned to the hypervisor and an assigning/collecting unit for assigning and collecting resources to logical partitions. Each logical partiion has a guest resource monitoring unit for monitoring the amount of the resource being used out of the amount of the resource assigned to the logical partiion and an adding/separating unit for requesting addition and separation of a resource to the assigning/collecting unit based on results of monitoring. In response to the request, assigning/collecting unit searches resource management table, assigns a resource to logical partition when a reserve resource exists in case of an assignment request, and collects a resource as a reserve resource in the resource management table in case of a collection request.

Abstract: A logical partitioned computer system. A hypervisor includes a resource management table for managing resources assigned to the hypervisor and an assigning/collecting unit for assigning and collecting resources to logical partitions. Each logical partition has a guest resource monitoring unit for monitoring the amount of the resource being used out of the amount of the resource assigned to the logical partition and an adding/separating unit for requesting addition and separation of a resource to the assigning/collecting unit based on results of monitoring. In response to the request, assigning/collecting unit searches resource management table, assigns a resource to logical partition when a reserve resource exists in case of an assignment request, and collects a resource as a reserve resource in the resource management table in case of a collection request.