Abstract: A server device includes a virtualization control unit, a storing unit, and a transferring unit. The virtualization control unit operates a virtual machine that is a virtualized computer to control a migration of the virtual machine with another server device. The storing unit stores therein a log, in an associated manner with the virtual machine, that is created by the virtual machine. When the virtual machine is migrated to the other server device, the transferring unit transfers, to the other server device, the log of the virtual machine targeted for a migration stored in the storing unit.

Abstract: A network management apparatus includes a first storage unit, a second storage unit, and a controller. The first storage unit stores therein communication groups included in the same subnet and information about communication devices belonging to the respective communication groups in association with each other. The second storage unit stores therein for each of the communication devices a port of a relaying device connected to the communication device as a connection destination port. The controller allows the relaying devices to perform communication between the connection destination ports on the basis of the first storage unit and the second storage unit to allow communication only between the communication devices belonging to the same communication group.

Abstract: A server device includes a virtualization control unit, a storing unit, and a transferring unit. The virtualization control unit operates a virtual machine that is a virtualized computer to control a migration of the virtual machine with another server device. The storing unit stores therein a log, in an associated manner with the virtual machine, that is created by the virtual machine. When the virtual machine is migrated to the other server device, the transferring unit transfers, to the other server device, the log of the virtual machine targeted for a migration stored in the storing unit.

Abstract: A server device includes a virtualization control unit, a storing unit, and a transferring unit. The virtualization control unit operates a virtual machine that is a virtualized computer to control a migration of the virtual machine with another server device. The storing unit stores therein a log, in an associated manner with the virtual machine, that is created by the virtual machine. When the virtual machine is migrated to the other server device, the transferring unit transfers, to the other server device, the log of the virtual machine targeted for a migration stored in the storing unit.

Abstract: A server device includes a virtualization control unit, a storing unit, and a transferring unit. The virtualization control unit operates a virtual machine that is a virtualized computer to control a migration of the virtual machine with another server device. The storing unit stores therein a log, in an associated manner with the virtual machine, that is created by the virtual machine. When the virtual machine is migrated to the other server device, the transferring unit transfers, to the other server device, the log of the virtual machine targeted for a migration stored in the storing unit.

Abstract: A network management apparatus includes a first storage unit, a second storage unit, and a controller. The first storage unit stores therein communication groups included in the same subnet and information about communication devices belonging to the respective communication groups in association with each other. The second storage unit stores therein for each of the communication devices a port of a relaying device connected to the communication device as a connection destination port. The controller allows the relaying devices to perform communication between the connection destination ports on the basis of the first storage unit and the second storage unit to allow communication only between the communication devices belonging to the same communication group.

Abstract: (Purpose) To perform a dynamic network node management by dividing logically a network, with a physical connection being uniformly configured in a management of nodes over the network. (Solving Means) In response to the inputting of a physical connection database storing a physical connection status related to apparatuses and a server, forming a network, a logical connection condition database storing a condition for a logical connection of the network, and a connection instruction of the logical connection of the network, an apparatus is caused to perform as path calculating means for calculating a path logically connectable from the physical connection database and the physical connection condition database, command generating means for generating a command for modifying, in response to the calculated path, setting to the corresponding apparatus or server, and transmitting means for transmitting the command for modifying the setting.

Abstract: A network monitoring program automatically sorts fault producing locations on a network. A memory unit stores a fault location determining table containing events indicative of failures of communications via the network, the events being associated with classified elements which can be causes of faults on the network. A communication situation monitoring unit monitors communication situations with respect to other apparatus on the network. A failure detecting unit detects an event indicative of a failure from a communication situation detected by the communication situation monitoring unit. A fault location determining unit determines an element which is responsible for the event detected by the failure detecting unit by referring to the fault location determining table. A fault information output unit outputs fault information representative of a determined result from the fault location determining unit.

Abstract: A network monitoring program automatically sorts fault producing locations on a network. A memory unit stores a fault location determining table containing events indicative of failures of communications via the network, the events being associated with classified elements which can be causes of faults on the network. A communication situation monitoring unit monitors communication situations with respect to other apparatus on the network. A failure detecting unit detects an event indicative of a failure from a communication situation detected by the communication situation monitoring unit. A fault location determining unit determines an element which is responsible for the event detected by the failure detecting unit by referring to the fault location determining table. A fault information output unit outputs fault information representative of a determined result from the fault location determining unit.