JP2008083841A - Blade server, blade device, and power management method for blade server - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enable power management of a whole blade server by a management controller on a blade device without providing any high order controller. <P>SOLUTION: This blade server is provided with: a blade 5 on which a main functional part 8 having the functions of the processing, storage and exchange of data and an operation mode control part 7 for controlling the mode and a management controller 6 are loaded; a casing 1; a power supply device 4 for supplying a shared power to blades 5-1 to 5-8; and a management bus 3. A nonvolatile memory part 2 for storing the suppliable power value of the power supply device 4 is connected to the management bus 3, and the management controller 6 is provided with a means for acquiring the consumption power values of the other blades in the casing and the suppliable power value through the management bus 3 and a means for deciding an operable mode based on a difference value between the total value of the consumption powers of the other blades and the suppliable power value, and for instructing the result to the operation mode control part 7 of its own blade. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention provides a blade server, a blade device, and a blade server power management method in which a plurality of blade devices are mounted in a casing and supplies a common power source to the blade device. The present invention relates to a blade server, a blade apparatus, and a power management method for a blade server that are managed by a blade management controller of the apparatus and do not require a controller higher than the blade management controller.

  The blade device is a general term for a system board in which various functions are mounted on one motherboard. There are various types, such as a blade having a server function in which a processor, memory, I / O, etc. are mounted on a motherboard, and a blade having a network function, in which a switching hub function is mounted on a motherboard.

  A blade server is a server device in which a plurality of blade devices as described above are stored in one housing. Since the power supply, FAN, etc. are shared by each blade device, it is possible to save space and reduce TCO (Total Cost of Ownership) compared to introducing as many servers and network switches as the number of blade devices. It is possible to realize.

  As a method of power consumption management of the blade server, a system management controller that is a management controller for power consumption management is placed on the housing side where the blade is stored, and the system management controller passes through the blade management controller of each blade. A system for managing the total power consumption of a blade has been proposed (see Patent Document 1).

Japanese Patent Laying-Open No. 2005-202506 (first page)

  In the above-described conventional technology, it is necessary to place a dedicated system management controller on the housing side that stores the blade device, and to implement firmware for realizing power consumption management and power control in the system management controller.

  Therefore, in realizing the blade server, there is a problem that the cost for mounting the system management controller on the housing side is increased, and the development cost of the firmware for controlling the management controller is increased.

  An object of the present invention is to provide a blade server in which each blade device manages its own power consumption and monitors the power of other blade devices without arranging a special management controller on the housing side that houses the blade device. It is an object of the present invention to provide a blade server, a blade apparatus, and a blade server power management method that solve the above-mentioned problems by managing the overall power consumption.

  A first blade server of the present invention includes a main function unit having one or more functions of data processing, storage, and exchange, an operation mode control unit that controls an operation mode of the main function unit, and a management controller A blade device including a plurality of blade devices, a power supply device that supplies power to the plurality of blade devices, and a management bus that connects the management controller across the blade devices A non-volatile storage means that holds a power value that can be supplied from the power supply device is connected to the management bus, and the management controller uses the management bus to power consumption values of other blade devices in the housing. , A means for obtaining the suppliable power value, and the other blade device Based on the difference between the sum of costs power and the available electric power value, it determines the operation mode capable of self blade device, and means for instructing the determination result to the operation mode control unit of the own blade device.

  The second blade server of the present invention is the first blade server, wherein the management controller includes means for acquiring power information by communicating between the management controllers using a packet for power information communication. .

  A third blade server of the present invention is the first or second blade server, and has means for holding power consumption information for each operation mode of the own device in the blade device, and the management controller Means for obtaining a power consumption value of the other blade device in the housing through the management bus, a means for obtaining the suppliable power value, and a total value of the power consumption of the other blade device; Based on the difference from the suppliable power value and the power consumption information for each operation mode, it is determined whether the operation is possible or not, and the highest mode allowed when it is possible. And a means for instructing the determined mode to the operation mode control unit.

  The fourth blade server of the present invention is the third blade server, wherein the management controller automatically obtains means for holding the received suppliable power value and a power consumption value corresponding to the determined mode. Means for holding as a reserved power value of the device, and subtracting the released power value from the reserved power value in response to a power release request, referring to the power consumption information by operation mode, and determining the highest mode that fits in the power value of the subtraction result Means for determining and instructing the determined mode to the operation mode control unit.

  A fifth blade server of the present invention is the fourth blade server, wherein the management controller receives a power improvement request and obtains a power consumption value of another blade device in the casing through the management bus. The blade total power consumption value obtained by summing the power consumption value of the other blade device and the reserved power value is compared with the suppliable power value, and when the suppliable power value is larger, Means for referring to the power consumption information for each operation mode, determining the highest mode in which the increase in power consumption falls within the difference of the comparison, and instructing the determined mode to the operation mode control unit.

  The sixth blade server according to the present invention is the fourth blade server, wherein the management controller holds the power consumption information for each blade and the presence or absence of a response from the other blade device. Means for managing and maintaining the presence information of the device, means for notifying the other blade device of the updated reserved power value when the reserved power value is updated or the operation power of the own device is turned off, and a response from the other blade device Means for updating the power consumption information for each blade with the power value included in the notification, and the consumption of other blade devices receiving the power improvement request and indicating the presence information in the power consumption information for each blade The power value is totaled, and the sum of the total value and the reserved power value is defined as the blade total power consumption value in the housing, and the blade total power consumption value and the suppliable power value in the housing If the suppliable power value is larger, the power consumption information by operation mode is referred to determine the highest mode in which the increase in power consumption falls within the comparison difference. Means for instructing the mode to the operation mode control unit.

  A first blade device according to the present invention is a blade device mounted on a blade server, and includes a main function unit having one or more functions of data processing, storage, and exchange, and the main function unit. An operation mode control unit for controlling an operation mode and a management controller are mounted, and the management controller is connected to other management controllers that connect a plurality of management controllers across the blade apparatuses in the blade server. Based on the difference value between the means for obtaining the power consumption value of the blade device and the suppliable power value of the power supply device of the blade server, and the total value of the power consumption of the other blade devices and the suppliable power value, Determine possible operation modes of the device and instruct the determined mode to the operation mode control unit And a stage.

  The second blade device of the present invention is the first blade device, wherein the management controller has means for communicating between the management controllers using a packet for power information communication to obtain power information. .

  A third blade device of the present invention is the first or second blade device, and has means for holding power consumption information for each operation mode of the own device, wherein the management controller Means for obtaining a power consumption value of the other blade device in the housing and the suppliable power value through the management bus in response to the input request, a total value of the power consumption of the other blade device, and the suppliable power value; And the power consumption information for each operation mode are determined to determine the highest mode allowed when the operation is possible, and if so, the power-on of the own device is instructed. Means for instructing the operation mode controller.

  The fourth blade device of the present invention is the third blade device, wherein the management controller automatically obtains means for holding the received suppliable power value and a power consumption value corresponding to the determined mode. A means for holding as a reserved power value of the device, and receiving a power release request, subtracting the released power value from the reserved power value, referring to the power consumption information for each operation mode, and the highest level within the power value of the subtraction result Means for determining a mode and instructing the determined mode to the operation mode control unit.

  A fifth blade device of the present invention is the fourth blade device, wherein the management controller receives a power improvement request and obtains a power consumption value of another blade device in the casing through the management bus. And the blade total power consumption value in the casing, which is a sum of the power consumption value of the other blade device and the reserved power value, and the suppliable power value, and when the suppliable power value is larger, Means for referring to the power consumption information for each operation mode, determining the highest mode in which the increase in power consumption falls within the difference of the comparison, and instructing the determined mode to the operation mode control unit.

  The sixth blade device of the present invention is the fourth blade device, wherein the management controller holds the power consumption information for each blade, and other blades depending on the presence / absence of a response from the other blade device. A means for managing and holding the presence information of the apparatus, a means for notifying the other blade apparatus of the updated reserved power value when the reserved power value is updated and the operation power of the own apparatus is turned off, and the other blade apparatus. Means for updating the power consumption information for each blade with the power value included in the response or notification, and the power improvement request, and the presence information of the other blades indicating the presence of the power consumption information for each blade is indicated. The power consumption values are summed, and the sum of the total value and the reserved power value is defined as the blade total power consumption value in the housing, and the blade total power consumption value in the housing is compared with the suppliable power value. When the suppliable power value is larger, the power consumption information for each operation mode is referred to determine the highest mode in which the increase in power consumption falls within the comparison difference, and the determined mode is Means for instructing the operation mode control unit.

  The first blade server power management method of the present invention includes a plurality of blade devices, supplies a common power to the plurality of blade devices, connects the plurality of blade devices, and determines the power supply suppliable power value. A power management method for a blade server including a management bus to which a non-volatile storage unit to be held is connected, wherein the blade device has a power consumption value and a suppliable power value of other blade devices in a housing through the management bus. And determining a possible operation mode of the own blade device based on a difference between a total value of power consumption of the other blade device and the suppliable power value. And a procedure for setting the determined mode.

  A second blade server power management method according to the present invention is the first blade server power management method, wherein the blade device communicates with the other blade device using a power information communication packet. A procedure for acquiring power information;

  A third blade server power management method according to the present invention is the first or second blade server power management method, wherein the blade device holds power consumption information for each operation mode of the own device. The blade device receives a power-on request for its own device, and obtains the power consumption value and the suppliable power value of the other blade device in the casing through the management bus; From the difference between the total power consumption of the device and the suppliable power value and the power consumption information for each operation mode, it is determined whether the operation is possible or not, and the highest mode allowed. And a procedure for instructing power-on of the apparatus and setting the apparatus to the determined mode.

  The fourth blade server power management method of the present invention is the third blade server power management method, wherein the blade device holds the acquired suppliable power value, and the blade device The procedure for holding the power consumption value corresponding to the determined mode as the reserved power value of the own device, and the blade device receiving the power release request, subtracting the released power value from the reserved power value, and the power consumption information by operation mode And determining the highest mode that falls within the power value of the subtraction result, and setting the own apparatus to the determined mode.

  A fifth blade server power management method according to the present invention is the fourth blade server power management method, wherein the blade device receives a power improvement request, and the other blade devices in the chassis through the management bus. The procedure for obtaining the power consumption value is compared with the supplyable power value and the blade total power consumption value in the enclosure, which is the sum of the power consumption value and the reserved power value of the other blade device by the blade device, and the supply If the possible power value is larger, refer to the power consumption information by operation mode, determine the highest mode in which the increase in power consumption falls within the difference of the comparison, and set the own device to the determined mode And a procedure to perform.

  The sixth blade server power management method of the present invention is the fourth blade server power management method, wherein the blade device holds the power consumption information for each blade, and the blade device A procedure for managing and maintaining the presence information of other blade devices depending on whether there is a response from the blade device, and ensuring that the blade device is updated to another blade device when the reserved power value is updated and the operation power of the own device is turned off. A procedure for notifying the power value, a procedure for the blade device to update the power consumption information for each blade with a power value included in a response or notification from another blade device, and the blade device receiving a power improvement request, Among the power consumption information for each blade, the power consumption values of other blade devices whose presence information indicates the presence are totaled, and the sum of the total value and the reserved power value is enclosed. The blade internal total power consumption value is compared with the blade internal power consumption value and the suppliable power value. If the suppliable power value is larger, refer to the power consumption information for each operation mode. And determining the highest mode in which the increase in power consumption falls within the difference of the comparison, and setting the own apparatus to the determined mode.

  According to the present invention, since the power consumption control of the own blade device can be performed within the range of power that can be supplied by the individual blade devices in the housing, the management controller for managing the total power consumption is arranged outside the blade device. This makes it possible to manage the power of the entire blade server.

  Next, the best mode for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram showing the overall configuration of a blade server according to an embodiment of the present invention.

  Referring to FIG. 1, a blade server according to the present invention includes a casing 1 for storing a plurality of blade devices (hereinafter referred to as blades), a nonvolatile memory unit 2, a power supply device 4, blades 5-1 to 5-8, It includes a management bus 3 used for communication for management control between blades. Each of the blades 5-1 to 5-8 has power control interfaces 10-1 to 10-8 with the power supply device 4, and receives operating power through the power supply lines 20-1 to 20-8, respectively.

  The main function units 8-1 to 8-4 of the blades 5-1 to 5-4 are data processing functions as a server, and the main function units 8-5 to 8-6 of the blades 5-5 to 5-6 are It is a data storage function unit, and main function units 8-1 to 8-4 of the blades 5-7 to 5-8 are data exchange function units such as a network switch. The above example is an example, and the configuration of the blade type is not particularly limited.

  The non-volatile memory unit 2 has a configuration of a non-volatile memory such as a flash memory and a few bus I / F circuits (bus interface circuits), and is placed on the case 1. The maximum power value information that can be supplied to the blade is stored. The power supply device 4 is mounted on a casing and supplies power to a blade that is also mounted in the casing.

  The operation mode control units 7-1 to 7-8 switch the operation mode of the blade related to power consumption. Each of the blades 5-1 to 5-4 is a blade having a data processing function, and each of the main function units 8-1 to 8-4 includes at least a CPU, a memory, and an I / O controller, and an operation mode control unit Each of 7-1 to 7-4 has a function of switching the clock frequency of the CPU. The clock frequency can be switched between high speed (normal speed), medium speed, and low speed.

  If the blades 5-5 to 5-6 are data storage function blades, the main function units 8-5 to 8-6 include at least a data storage unit and an access control unit for the data storage unit, and an operation mode control unit 7- Each of 5-7-6 has a function of switching operating frequencies of the data storage unit and the access control unit.

  If the blades 5-7 to 5-8 are data exchange function blades, each of the main function units 8-7 to 8-8 includes at least a data exchange switch and a control unit thereof. Each of -7 to 7-8 has a function of switching these operating frequencies.

  Here, the operation mode control units 7-1 to 7-4 further turn on / off the operation power supply (DC power) supply switches to the submodules and some components in the main function units 8-1 to 8-4. There may be a function of turning off or a function of stopping / resuming a clock to the submodule or some components.

  In these cases, there are a plurality of types of operation modes, and the operation mode is defined by a combination of modes for each possible type. For example, in the blades 5-1 to 5-4, if the operation is performed in a part of the time zone, the DC power supply of the display system is normally turned off, and the DC power supply is turned on after the operation of the keyboard or the like is started. Turned on. There are two types of display-related DC power sources and three more clock frequencies, and six modes are defined in total.

  Next, a first example of the embodiment of the present invention will be described. The management controller 6-1 includes a microcomputer and a built-in or external ROM unit or RAM unit.

  When the standby DC power supply is turned on and becomes operable, the management controller 6-1 stores the mode definition information from the nonvolatile storage (not shown) in the management controller 6-1 or the blade 5-1. -1 mode definition information 616 is loaded. An example of the contents of the loaded mode definition information is shown in FIG.

  Next, the management controller 6-1 obtains the maximum power value information that can be supplied to the blades 5-1 to 5-8 in the casing by accessing the nonvolatile memory unit 2, and stores the value in its own management information. It is held as the suppliable power value 611 in the unit 61-1 (see FIG. 3 (1)). In addition, the management controller 6-1 holds the power value secured by itself as the secured power value 612 in the management information storage unit 61-1.

  In addition, the management controller 6-1 communicates with each blade through the management bus 3 so that the presence information of other blades and the total power consumption information used by other blades are stored in its management information storage unit 61. Presence information 614 and other blade total power consumption value 613 are retained. The presence information 614 includes flags F0 to F7 corresponding to the blades 5-1 to 5-8. Each piece of management information is held until the blade AC power is exhausted.

  Similarly for each of the other management controllers 6-2 to 6-8, the maximum power value information that can be supplied by the power supply device 4, the power value secured by itself, the presence information and consumption of other blades excluding itself The total power information is held in the management information storage units 61-2 to 61-8.

  FIG. 2 is a block diagram showing the configuration of the power supply device 4. Referring to FIG. 2, the power supply device 4 connects the outputs of the power supply module 42-1 and the power supply module 42-2, and supplies the connected outputs to the power supplies to the blades through the switch circuits 41-1 to 41-8. Output to supply lines 20-1 to 20-8.

  Here, in this embodiment, the system is constructed so that the output power of the power supply modules 42-1 and 42-2 combined with the total power consumption when the blades 5-1 to 5-8 are fully operated. However, the output of one of the power supply modules 42-1 and 42-2 may be turned off due to a failure or the like, which requires management of power consumption. In addition, when blades are added or changed, excess or deficiency of suppliable power is checked and necessary measures are taken, but even if there is an oversight or the like, system down can be prevented if power consumption is managed.

  FIG. 4 is a diagram showing communication contents between blades in the blade server according to the embodiment of the present invention. The management controller 6 on each blade can communicate with each other via the management bus 3.

  The contents of the communication are two: a power value request communication packet shown in FIG. 4 (1) and a power value notification packet shown in FIG. 4 (2). The power value request communication packet is a communication means for knowing the power currently secured by other blades. A request packet P1000 for power value request communication is sent as broadcast communication.

  The packet P1000 includes a code field 1002 indicating that this packet is a power value request and a transmission source blade number field 1001. It is possible to determine from which blade the communication originated from the source blade number field 1001.

  The management controller that has received this request packet checks the source blade number in the packet, and updates the value if the blade number does not exist on the existence information of other blades held by the management controller. .

  The management controller that has received this request packet puts its own reserved power value in the management information and the blade number in the response packet P2000 and returns it to the blade corresponding to the transmission source blade number. The data to be returned includes a source blade number field 1001 and a code field 1002 indicating a power value request in order to indicate which request is a response.

  The power value notification packet is a communication means for notifying other blades when its reserved power value is changed. The power notification packet P3000 is sent as broadcast communication.

  The power notification packet P3000 includes a code field 3002 indicating that this packet is a power value notification and a transmission source blade number field 3001. From the transmission source blade number field 3001, it is possible to determine from which blade the communication originated.

  The management controller that has received the power notification packet checks the source blade number in the packet, and updates the value if the blade number does not exist on the presence information of other blades held by the management controller. . If you want to secure power on other blades, but there is something that has no power that can be supplied in the chassis and power reservation is pending, you can perform the power securing process again after receiving this packet. it can. There is no response packet for this packet.

  Further, in the second embodiment in which the value of power consumption (reserved power consumption) for each blade is also managed and held as management information, the latest secured power value of its own blade is always added as the power value 3003. To do.

  The contents of each packet in FIG. 4 indicate the data portion to be transmitted and received, and the destination address (broadcast code / blade number), source address (blade number), and data length are added to this outer frame. Is done. Furthermore, a header and a trailing are added to the outer frame as necessary.

  Next, the operation of the best mode for carrying out the present invention will be described. FIG. 5 is a flowchart showing a power-on sequence of the blade 5-1 in the blade server according to the embodiment of the present invention. Referring to FIG. 5, the flow of power control after the blade 5-1 is mounted on the housing 1 and AC power is supplied to the blade 5-1 is shown.

  When the AC power is turned on, the standby DC power supply of the power supply line 20-1 is also turned on, and the management controller 6-1 can be operated, and the nonvolatile memory in the management controller 6-1 or the blade 5-1 is stored. The mode definition information is loaded into the management information storage unit 61-1 from (not shown).

  The management controller 6-1 accesses the non-volatile memory unit 2 via the management bus 3, obtains the maximum power value information that can be supplied in the housing, and updates the suppliable power value 611 of the management information storage unit 61-1. (Step 501). Next, the management controller 6-1 issues a request packet P1000 for power value request communication (step 502), obtains power consumption information and presence information of other blades, and updates management information.

  For example, the flag of the blade that has been able to receive the response packet of the presence information 614 is turned on, the flag of the blade that has not been able to receive the response packet is turned off, the received power consumption values are summed, and the total power consumption of the other blades is the total value. The value 613 is updated (step 503).

  The updated other blade total power consumption value 613 is compared with the suppliable power value 611 (step 504). When the other blade total power consumption value 613 has already reached the suppliable power value 611, the corresponding blade 5-1. Cannot be turned on. The other blades are in a power release waiting state.

  When the other blade total power consumption value 613 does not reach the suppliable power value 611, the management controller 6-1 includes the suppliable power value 611 and the other blade total power among the power consumption values of the mode definition information 616 of the own blade. The maximum power consumption that is equal to or less than the difference between the power consumption values 613 and its mode are determined to secure the power consumption (step 505).

  The management controller 6-1 issues a power value notification packet P3000 to notify other blades that its reserved power has been changed (step 506). The management controller 6-1 instructs the power control interface 10-1 to turn on, turns on the DC power of the blade 5-1 (step 507), and then continues the determined operation mode to the operation mode control unit 7-1. Instruct (step 508).

  FIG. 6 is a flowchart showing a power supply securing sequence for the blade 5-1 in the blade server of the present invention. Referring to FIG. 6, there is shown a flow of power control when a further power improvement request is generated while the blade 5-1 is already powered on.

  The management controller 6-1 broadcasts a request packet for power value request communication (step 601), obtains power consumption information and presence information of other blades, sums up the received power consumption values, and thereby uses the total power consumption of other blades. The value 613 is updated, and each flag of the presence information 614 is updated depending on the presence / absence of a reply (step 602).

  The sum of the updated other blade total power consumption value 613 and the reserved power value 612 of the own blade (blade total power consumption in the casing) is compared with the suppliable power value 611 (step 603). When the supplyable power value 611 has been reached, the other blades are placed in a power release waiting state (step 607). When the power value notification packet is received from the other blade (step 608), the processing from step 601 is performed again.

  When the total power consumption value in the casing does not reach the suppliable power value 611, the management controller 6-1 determines that the increment of the power consumption value in the mode definition information 616 of the own blade is the suppliable power value 611 and the in-casing The maximum power consumption within the difference between the total power consumption values and the mode thereof are determined to secure the power. The secured power value is equal to or greater than the previously secured value (step 604).

  The management controller 6-1 notifies the other blades that the secured power has been changed by issuing a power value notification packet (step 605). The management controller 6-1 instructs the determined mode to the operation mode control unit 7-1 (step 606).

  FIG. 7 is a flowchart showing the power release sequence of the blade 5-1 in the blade server of the present invention. The power control when the power saving request is generated when the blade 5-1 is already powered on. The flow is shown.

  The management controller 6-1 determines an operation mode that is equal to or less than the power value obtained by subtracting the release power value from the current reserved power value 612 (step 701), and sets the mode. The operation mode control unit 7-1 is instructed to update the secured power value 612 of the management information to the power consumption value corresponding to the mode (step 702).

  The management controller 6-1 issues a power value notification packet to notify other blades that its reserved power has been changed (step 703).

  FIG. 8 is a flowchart showing a power-off sequence of the blade 5-1 in the blade server of the present invention. The power control when the power-off request is generated when the blade 5-1 is already powered on. The flow is shown.

  The management controller 6-1 turns off the blade power (step 801). The management controller 6-1 notifies the other blades that its reserved power has been changed by issuing a power value notification packet (step 802).

  In this way, each blade can control the power consumption of its own blade within the range of power that can be supplied by the chassis. Therefore, the blade can be used without placing a higher-level management controller for managing the total power consumption outside the blade. Power management of the entire server becomes possible. Accordingly, it is possible to reduce the cost on the housing side such as the back panel and to eliminate the need for development of firmware for controlling a higher management controller other than the blade management controller.

  Next, a second example of the embodiment of the present invention will be described with reference to the drawings. FIG. 9 is a diagram showing an example of the contents of the management information storage unit 61 of the second embodiment. In the second embodiment, each of the management controllers 6-1 to 6-8 also holds and manages blade power consumption information 615 in the management information storage unit 61. Other than this, the configuration is the same as that of the first embodiment.

  Next, the operation of the second embodiment will be described. The operation when the AC power is turned on is the same as that in the first embodiment in steps 501 to 502 in the flowchart of FIG. 5. In step 503, a response of the power consumption value is received from other blades present, The blade power consumption information 615 and the presence information 614 are updated. Then, the power values of the entries excluding the entry corresponding to the own blade in the flag on entry of the presence information 614 of the power consumption information 615 for each blade are summed, and the other blade total power consumption value 613 is updated accordingly.

  Steps 504 to 505 are the same as in the first embodiment. In step 506, the reserved power value 612 is added as the power value 3003 of the power notification packet P3000 and notified. Steps 507 to 508 are the same as those in the first embodiment.

  The operation when a further power improvement request is generated is shown in the flowchart of FIG. When the blade receives a power improvement request from the main function unit 8-1, the step 603 is executed. That is, the sum of the other blade total power consumption value 613 and the reserved power value 612 (blade total power consumption value in the casing) is compared with the suppliable power value 611.

  If the suppliable power value 611 is larger, the step 604, the step 605A, and the step 606 are executed sequentially. In step 605A, the updated reserved power value 612 is added and notified.

  If the total blade power consumption value in the casing has reached the suppliable power value 611, step 607 is executed to detect the update of the other blade total power consumption value (step 608A), and the processing returns to step 603.

  The processing when a power saving request is generated in the blade is the same as that in FIG. 7 of the first embodiment, but in step 703, the updated reserved power value 612 is added and notified. The processing in the case where a blade DC-off request is generated is the same as that in FIG. 8 of the first embodiment, but in step 802, the power value 3003 is added as “0” and notified.

  The operation of the management controller 6-1 when receiving a power notification from another blade is shown in the flowchart of FIG. The management controller 6-1 updates the entry corresponding to the blade notified of the blade power consumption information 615 to the notified power value, and turns it on if the corresponding flag of the presence information 614 is off. Next, the power consumption values of the other blades in the flag-on state are summed, and the other blade total power consumption value 613 is updated with the total value (step A01).

  According to the second example of the embodiment of the present invention, in addition to the above effect, the power consumption management process can be speeded up, and the switching of the operation mode of the blade is speeded up.

It is a block diagram which shows the whole structure of the blade server of embodiment of this invention. It is a block diagram which shows the structure of the power supply device 4 of the blade server of embodiment of this invention. (1) is a diagram showing a content example of the management information storage unit 61 of the management controller 6 according to the embodiment of the present invention, and (2) is a diagram showing a content example of the mode definition information 616 of the management information storage unit 61. It is a figure which shows the data content of communication between the management controllers of the power management of the blade server of embodiment of this invention. It is a flowchart which shows the blade power-on operation | movement of the 1st Example of the blade server of embodiment of this invention. It is a flowchart which shows operation | movement when the electric power acquisition request generate | occur | produces in the braid | blade of the 1st Example of the blade server of embodiment of this invention. It is a flowchart which shows operation | movement when the power saving request | requirement generate | occur | produced in the braid | blade of the 1st Example of the blade server of embodiment of this invention. It is a flowchart which shows operation | movement when the operation | movement power-off request | requirement generate | occur | produced in the braid | blade of the 1st Example of the blade server of embodiment of this invention. It is a figure which shows the example of the content of the management information storage part 61 of the 2nd Example of embodiment of this invention. It is a flowchart which shows operation | movement when the electric power acquisition request | requirement generate | occur | produces in the blade of the 2nd Example of the blade server of embodiment of this invention. It is a flowchart which shows the operation | movement at the time of the 2nd Example of the blade server of embodiment of this invention when a management controller receives a power value notification.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Case 2 Non-volatile memory part 3 Management bus 4 Power supply device 41-1 to 41-8 Switch circuit 42-1 to 42-2 Power supply module 5-1 to 5-8 Blade 6-1 to 6-8 Management controller 61 -1 to 61-8 Management information storage unit 611 Supplyable power value 612 Secured power value 613 Total power consumption value of other blades 614 Presence information 615 Power consumption information by blade 616 Mode definition information 7-1 to 7-8 Operation mode control unit 8-1 to 8-8 Main function unit 10-1 to 10-8 Power control interface 20-1 to 20-8 Power supply line P1000 Request packet P2000 Response packet P3000 Power value notification packet

Claims (18)

A blade device including a main function unit having one or more functions of data processing, storage, and exchange, an operation mode control unit that controls an operation mode of the main function unit, and a management controller;
A blade server comprising a housing for storing a plurality of blade devices, a power supply device for supplying power to the plurality of blade devices, and a management bus for connecting the management controller across the plurality of blade devices,
The management bus is connected to a non-volatile storage means for holding a suppliable power value of the power supply device,
The management controller obtains the power consumption value of the other blade device in the housing, the suppliable power value through the management bus, the total value of the power consumption of the other blade device, and the suppliable power value, A blade server comprising: means for determining a possible operation mode of the own blade device based on the difference between the two, and instructing the determination result to the operation mode control unit of the own blade device. 2. The blade server according to claim 1, wherein the management controller has means for communicating between the management controllers using a packet for power information communication to acquire power information. The blade device has means for holding power consumption information for each operation mode of the device,
The management controller is
Means for receiving a power-on request of the own device and obtaining the power consumption value of the other blade device in the housing through the management bus, the suppliable power value;
From the difference between the total power consumption value of the other blade device and the suppliable power value and the power consumption information for each operation mode, it is determined whether or not the operation is permitted and the highest mode allowed when the operation is possible, 3. The blade server according to claim 1, further comprising means for instructing power-on of the own device if possible and instructing the determined mode to the operation mode control unit. 4. The management controller is
Means for holding the received suppliable power value;
Means for holding a power consumption value corresponding to the determined mode as a secured power value of the own device;
In response to a power release request, the release power value is subtracted from the secured power value, the highest mode that falls within the power value of the subtraction result is determined with reference to the power consumption information for each operation mode, and the determined mode is determined as the operation mode. The blade server according to claim 3, further comprising means for instructing the control unit. The management controller is
Means for receiving a power improvement request and obtaining power consumption values of other blade devices in the housing through the management bus;
Comparing the total power consumption value of blades in the casing, which is the sum of the power consumption value of the other blade device and the reserved power value, and the suppliable power value, and if the suppliable power value is larger, the operation And a means for referring to the power consumption information for each mode to determine the highest mode in which an increase in power consumption falls within the difference of the comparison, and instructing the determined mode to the operation mode control unit. Item 5. The blade server according to item 4. The management controller is
Means for holding power consumption information by blade;
Means for managing and holding presence information of other blade devices depending on the presence or absence of a response from the other blade devices;
Means for notifying the other blade device of the updated reserved power value when updating the reserved power value or turning off the operation power of the own device;
Means for updating the power consumption information for each blade with a power value included in a response or notification from another blade device;
Upon receiving a power improvement request, the power consumption values of the other blade devices indicating the presence of the presence information in the blade power consumption information are totaled, and the sum of the total value and the reserved power value is calculated as the blade in the chassis. The total power consumption value is compared with the total power consumption value of the blade in the housing and the suppliable power value. When the suppliable power value is larger, the power consumption information for each operation mode is referred to and 5. The blade server according to claim 4, further comprising: means for determining a highest mode in which an increase in power falls within the difference of the comparison, and instructing the determined mode to the operation mode control unit. A blade device mounted on a blade server,
Equipped with a main function unit having one or more functions of data processing, storage, and exchange, an operation mode control unit for controlling the operation mode of the main function unit, and a management controller,
The management controller is
The power consumption value of other blade devices in the blade server device and the suppliable power value of the power supply device of the blade server are acquired through a management bus connecting a plurality of management controllers across the blade devices in the blade server. Means,
Means for determining a possible operation mode of the own device based on a difference value between a total value of power consumption of the other blade devices and the suppliable power value, and instructing the determined mode to the operation mode control unit; A blade device comprising: 8. The blade apparatus according to claim 7, wherein the management controller has means for communicating between the management controllers using a packet for power information communication to obtain power information. It has means for holding power consumption information by operation mode of its own device,
The management controller is
Means for receiving a power-on request of its own device and obtaining the power consumption value and the suppliable power value of other blade devices in the housing through the management bus;
From the difference between the total power consumption value of the other blade device and the suppliable power value and the power consumption information for each operation mode, it is determined whether or not the operation is permitted and the highest mode allowed when the operation is possible, 9. The blade device according to claim 7, further comprising means for instructing power-on of the own device if possible and instructing the determined mode to the operation mode control unit. The management controller is
Means for holding the received suppliable power value;
Means for holding a power consumption value corresponding to the determined mode as a secured power value of the own device;
Receiving a power release request, subtracting the release power value from the reserved power value, referring to the power consumption information by operation mode, determining the highest mode that falls within the power value of the subtraction result, and determining the determined mode to the The blade device according to claim 9, further comprising means for instructing an operation mode control unit. The management controller is
Means for receiving a power improvement request and obtaining a power consumption value of another blade device in the housing through the management bus;
Comparing the total power consumption value of blades in the casing, which is the sum of the power consumption value of the other blade device and the reserved power value, and the suppliable power value, and if the suppliable power value is larger, the operation Means for referring to the power consumption information for each mode, determining the highest mode in which the increment of power consumption falls within the difference of the comparison, and instructing the determined mode to the operation mode control unit. The blade device according to claim 10. The management controller is
Means for holding power consumption information by blade;
Means for managing and holding presence information of other blade devices depending on the presence or absence of a response from the other blade devices;
Means for notifying the updated reserved power value to the other blade device when the reserved power value is updated and the operation power of the own device is turned off;
Means for updating the power consumption information for each blade with a power value included in a response or notification from the other blade device;
In response to a power improvement request, the power consumption values of other blades indicating the presence information in the blade power consumption information are totaled, and the sum of the total value and the reserved power value is calculated as the total blade consumption in the chassis. The power consumption value is compared with the blade total power consumption value in the housing and the suppliable power value. If the suppliable power value is larger, the power consumption information for each operation mode is referred to and the power consumption increment is increased. The blade apparatus according to claim 10, further comprising: means for determining a highest mode that falls within the comparison difference, and instructing the determined mode to the operation mode control unit. Including multiple blade devices,
Supplying a common power source to the plurality of blade devices;
A power management method for a blade server comprising a management bus connected to a non-volatile storage unit that connects the plurality of blade devices and holds a suppliable power value of the power supply,
A procedure for the blade device to acquire the power consumption value of the other blade device in the housing and the suppliable power value through a management bus;
Based on the difference between the total power consumption of the other blade devices and the suppliable power value, the blade device determines a possible operation mode of the own blade device, and sets the own blade device to the determined mode. And a power management method for the blade server. 14. The blade server power management method according to claim 13, further comprising a step of acquiring power information by communicating with the other blade device using the power information communication packet. A procedure in which the blade device holds power consumption information for each operation mode of the device;
The blade device receives a request to turn on its own device, and obtains the power consumption value and the suppliable power value of other blade devices in the housing through the management bus;
The blade device determines whether the operation is possible or not and the highest mode allowed when the operation is possible from the difference between the total power consumption value of the other blade devices and the suppliable power value and the power consumption information for each operation mode. 15. The blade server power management method according to claim 13 or 14, further comprising a step of instructing power-on of the own device if possible and setting the own device in the determined mode. . A procedure in which the blade device holds the acquired suppliable power value;
A procedure in which the blade device holds a power consumption value corresponding to the determined mode as a reserved power value of the own device;
The blade device receives a power release request, subtracts the release power value from the secured power value, refers to the power consumption information by operation mode, determines the highest mode that falls within the power value of the subtraction result, The blade server power management method according to claim 15, further comprising: a step of setting the determined mode to the determined mode. The blade device receives a power improvement request, and obtains a power consumption value of another blade device in the casing through the management bus;
When the blade device compares the total power consumption value of the blade in the casing, which is the sum of the power consumption value of the other blade device and the reserved power value, and the suppliable power value, and the suppliable power value is larger Comprises referring to the power consumption information for each operation mode, determining the highest mode in which the increase in power consumption falls within the difference of the comparison, and setting the own apparatus to the determined mode. The blade server power management method according to claim 16. A procedure in which the blade device holds power consumption information for each blade;
A procedure in which the blade device manages and holds the presence information of the other blade device according to the presence or absence of a response from the other blade device;
A procedure for notifying the other blade device of the updated reserved power value when the blade device updates the reserved power value and turns off the operation power of the own device;
A procedure for the blade device to update the power consumption information for each blade with a power value included in a response or notification from another blade device;
The blade device receives a power improvement request, and among the power consumption information by blade, sums the power consumption values of other blade devices for which the presence information indicates the presence, and calculates the sum of the total value and the reserved power value. Compare the blade internal power consumption value with the supplyable power value, and if the supplyable power value is larger, refer to the power consumption information by operation mode. The blade server power management according to claim 16, further comprising: determining a highest mode in which an increase in power consumption falls within the comparison difference, and setting a self-device to the determined mode. Method.

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