Fujitsu Corporation

Junichi Higuchi

Masazumi Matsubara

Ken Yokoyama

Yasuhiko Kanemasa

Yuji Nomura

Hirokazu Iwakura

Atsushi Kubota

Takuto Tsuji

A switch identification method in by a computer includes sending a first packet to a first virtual switch emulating a first physical switch, and identifying a second virtual switch that is an allocation destination to which the first virtual switch allocates the first packet, and referring, to a storage unit that stores a switch correspondence information that associates a second physical switch that is an allocation destination of the first physical switch with the second virtual switch, and identifying the second physical switch that is the allocation destination to which the first physical switch allocates a second packet emulated by the first packet.

Switch identification method and non-transitory computer-readable recording medium

An operation management apparatus includes a processor. The processor generates a VM load model for each virtual machine running on an information processing system, generates resource utilization rate estimation data based on VM load models of a virtual machine group running on the physical machine and a VM load model of a first virtual machine, for each of physical machines except for a first physical machine on which the first virtual machine is running, generates a resource competition occurrence model based on the resource utilization rate of the physical machine, calculates a statistical value of competition occurrence probabilities of the resource, for each of the physical machines except for the first physical machine, based on the resource utilization rate estimation data and the resource competition occurrence model, specifies the migration destination physical machine based on the statistical value, and outputs information of a specified migration destination physical machine.

Operation management apparatus, migration destination recommendation method, and storage medium

An information processing apparatus includes: a processor configured to: acquire message data that indicate a message size and a response time of each response message identified from an encrypted packet group; identify, based on the message data, first peak sizes that satisfy a first condition from a first size distribution of the message size of each response message; determine based on the message data, when the first peak sizes include a second peak size different from third peak sizes, whether a first time distribution satisfies a second condition, the third peak sizes being peak sizes of the message size of each response message in a normal state, the first time distribution being a frequency distribution of the response time of each response message having the second peak size; and determine that a service is abnormal, when the first time distribution satisfies the second condition.

Information processing apparatus and abnormality diagnosis method

A non-transitory computer-readable storage medium storing a program that causes a computer to execute a process, the process includes classifying a plurality of virtual machines, which are to be mapped to a plurality of physical machines each of which is subjected to a maintenance operation, into groups by referring to correspondence information in which information indicating a desired time zone for executing a maintenance operation of a physical machine is correlated with information indicating a virtual machine such that an overlap time of desired time zones corresponding to the virtual machines in the same group is equal to or longer than a predetermined time; and mapping the groups obtained by the classifying to the physical machines different from each other.

Maintenance control method, system control apparatus and storage medium

A packet monitoring apparatus includes a memory and a processor configured to capture a plurality of packets transmitted through a communication line and belonging to a first session, specify capturing time intervals between the plurality of packets, acquire, from each of the plurality of packets, a clock number of clocks generated by a transmission apparatus and counted when each of the plurality of packets is transmitted from the transmission apparatus, specify a difference of the clock numbers between each of the plurality of packets and a packet captured immediately prior to each of the plurality of packets, specify a frequency of the clock based on the specified capturing time interval and the specified difference, and specify a jitter of the capturing time intervals based on the specified capturing time interval, the specified frequency, and the specified difference.

Packet monitoring apparatus, method of monitoring packet and non-transitory computer-readable storage medium

A method for performance requirement estimation includes: acquiring system performance requirement information indicating requirements of a performance value with respect to processes pertaining to each of processing classifications; acquiring resource information indicating the amount of resources with respect to a plurality of second machines included in a new system to be configured to perform the processes pertaining to each of the processing classifications; determining whether or not the new system satisfies requirements of a performance value with respect to a processes pertaining to each of the processing classifications in accordance with the system performance requirement information, the resource information, and a model configured to output a performance value with respect to the processes pertaining to each of the processing classifications in accordance with an input indicating the amount of resources to be distributed for performing the processes; and outputting a determination result obtained by the determining.

Apparatus, method, and non-transitory computer-readable storage medium for storing program for performance requirement estimation

A method includes: extracting a partial character string including a reserved word and a character string immediately previous or subsequent to the reserved word from each of a plurality of pieces of target data, the plurality of pieces of target data conforming to a first pattern character string including the reserved word defined by a protocol; detecting target data including the partial character string among the plurality of pieces of target data; specifying a first partial character string from the extracted partial character string based on the detected target data; and creating, by a processor, a second pattern character string for classifying the plurality of pieces of target data based on the first pattern character string and the first partial character string.

Method of creating classification pattern, apparatus, and recording medium

A physical machine calculates, for each virtual switch, an increment of a usage of a processor in accordance with the number of packets to be collected, by using a usage of the processor by a virtual switch and a number of packets passing through each port when mirroring is executed and when mirroring is not executed, respectively. For each of candidates for capture point, the physical machine calculates, for each physical machine, a usage of the processor by a hypervisor when mirroring is executed, by using an increment of a usage of the processor by the virtual switch and a usage of the processor by the hypervisor when mirroring is not executed. The physical machine determines a combination of ports used for collection of packets from among the candidates for capture point, in accordance with a deviation of the calculated usage of the processor by each hypervisor.

Capture point determination method and capture point determination system

A system analyzing apparatus obtains a message group including a message ID, a protocol, a type, and a transmission time of messages transmitted/received in a system where a hierarchical structure of protocols is defined. The apparatus detects pairs of a request message and a response message of the same message ID from the obtained message group. The apparatus identifies a request time and a response time of each of the detected pairs. The apparatus searches for a child-layer pair that has a request time and a response time between the request time and the response time of a parent-layer pair arbitrarily selected from among the pairs and that has a protocol in a layer lower than the protocol of the parent-layer pair on the basis of the identified result. The apparatus outputs the found child-layer pair as a candidate pair having a call relationship with the parent-layer pair.

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Kawasaki, Japan

Junichi Higuchi