Abstract: A method includes calculating a plurality of first index values indicating access loads from one or more first virtual storage devices accessing a first physical storage device of a plurality of physical storage devices, to the first physical storage device, in a case where access loads from the one or more first virtual storage devices to a plurality of second physical storage devices including the first physical storage device are equalized across the second physical storage devices, the plurality of second physical storage devices being associated with the one or more first virtual storage devices; and outputting a plurality of second index values indicating access loads from a plurality of virtual machines to the first physical storage device, the second index values being obtained by summing the calculated first index values for each virtual machine associated with each of the one or more first virtual storage devices.

Abstract: A power supply control semiconductor device that generates and outputs a drive pulse to turn on and off a switch, which is configured to intermittently supply a current to a primary winding of a voltage conversion transformer, in response to input of a voltage proportional to the current flowing through the primary winding of the voltage conversion transformer and an output voltage detection signal from a secondary side of the voltage conversion transformer is provided. The power supply control semiconductor device is in a no-lead resin-sealed package. The package includes external terminals including a first terminal as an input terminal, a second terminal provided next to the first terminal, and third terminals that have a lower breakdown voltage relative to the first terminal and are different from the second terminal. An interval between the first terminal and the second terminal is wider than each interval between the third terminals.

Abstract: The PLD management system includes a PLD management unit that manages the usage status of each of one or more PLDs. The PLD management unit receives a PLD usage request from a request source module which is one of a plurality of processing modules sharing each of the one or more PLDs. when the PLD management unit receives the usage request, the PLD management unit performs control to prevent two or more processing modules including the request source module from utilizing the same PLD at the same time based on a current usage status of a PLD corresponding to the usage request and content of the usage request.

Abstract: The PLD management system includes a PLD management unit that manages the usage status of each of one or more PLDs. The PLD management unit receives a PLD usage request from a request source module which is one of a plurality of processing modules sharing each of the one or more PLDs. when the PLD management unit receives the usage request, the PLD management unit performs control to prevent two or more processing modules including the request source module from utilizing the same PLD at the same time based on a current usage status of a PLD corresponding to the usage request and content of the usage request.