JP2010003245A - Computer system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce power consumption in such a computer system in which a plurality of computers with starting sequences determined exist, and access timing to another computer is limited. <P>SOLUTION: In the computer system 1, second computers 20 and 30 are connected communicably to first computers 10 and 20. A first specific software start determining means determines whether or not first specific software is in an operable state in the first computers by a loopback test from when the first computers are turned on. A second power control part changes the second computers from an off-state to an on-state when the first specific software start determining means determines that the first specific software becomes operable. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a computer system.

Currently, in a computer system in which a plurality of computers are communicatively connected via a communication network, a technique has been established that can turn on the power of another stopped computer from one operating computer. (For example, refer to Patent Document 1). Further, in such a computer system, it is also proposed that one operating computer turns on another stopped computer based on the startup schedule file (hereinafter referred to as “schedule startup technology”). (For example, refer to Patent Document 2). If these techniques are used, a necessary computer can be activated only when necessary, and this leads to a reduction in power consumption (see, for example, Patent Document 2).
JP 2004-96285 A JP 2007-226335 A

  By the way, in a server / client type computer system, a plurality of server computers such as an authentication server computer, a database server computer, a file server computer, and a backup server computer are communicably connected via a communication network to constitute one server system. There may be. In such a server system, usually, the database server is activated after the authentication server computer is activated, and the file server computer is activated after the database server computer is activated. It has been established. Note that this means that if the authentication server computer is not operating, the database server computer cannot be authenticated without providing services, and if the database server computer is not operating, the file server computer providing service cannot be executed. Based on constraints. In such a server system, the service provision time of the file server computer is usually determined, and the backup server computer accesses the file server computer after several tens of minutes have elapsed since the service provision of the file server computer has ended. Thus, the backup processing of the file server computer is started. Note that the backup server computer accesses the file server computer after tens of minutes from the end of the service provision of the file server computer, not immediately after the end of the service provision of the file server computer, just before the service provision end time. This is because when a file access is made from a client computer, the file server computer needs to perform post-processing after the service provision end time. Then, by applying the schedule activation technique as described above to such a server system and controlling the activation timing of each server computer, it is possible to save power in the server system, which is very preferable. However, recently, further power saving is desired in such a computer system.

  An object of the present invention is to reduce power consumption in a computer system in which there are a plurality of computers in which the startup order is determined or the access timing to other computers is limited. is there.

  A computer system according to a first invention includes a first computer, a second computer, first specific software activation determining means, and a second power supply control unit. Note that the first specific software activation determination unit may be provided in the first computer or may be provided in another computer. The second power control unit may be provided in the second computer or may be provided in another computer. The second computer is communicatively connected to the first computer. The first specific software activation determining means loops whether or not specific software (hereinafter referred to as “first specific software”) is operable in the first computer from the time when the first computer is turned on. Judged by back test. The second power supply control unit causes the second computer to change from the off state to the on state when the first specific software activation determining unit determines that the first specific software is in an operable state. In the present invention, the second power control unit is, for example, “Wake On LAN compatible BIOS”. Further, in the present invention, the “off state” means a complete power off state (however, power is supplied to each device via the motherboard. S5 state in terms of ACPI power level) and hibernation This means the state (the contents of the memory are swapped to the disk drive, but the entire power is turned off. The state of S4 in the ACPI power level), and the sleep state (the CPU clock is Stopped but CPU and RAM are on and refresh operation is performed, or CPU clock is stopped and CPU power is off but RAM is on A state in which a refresh operation is performed (a state of S1 and S2 in the ACPI power supply level), a standby state Power of most of the hardware components other than the RAM is the state of the place of S3 referred to in the state .ACPI power level that is in the OFF state) are not included. Further, in the present invention, the “on state” means a state in which the system is on and is fully functioning (a state of S0 in terms of ACPI power supply level).

  By the way, when the schedule startup technology (see the column) is applied to a computer system in which the startup order of computers is determined, the startup schedule includes the startup time of the operating system of each computer, the startup time of applications, etc. It is necessary to determine in advance in consideration. In such a case, it is necessary to provide a margin time so that the activation times do not overlap. On the other hand, in the computer system according to the present invention, as soon as the first specific software is operable in the first computer, the second computer is switched from the off state to the on state. In other words, the computer system according to the present invention does not require extra time. For this reason, in this computer system, it is possible to reduce the power consumption by a margin time. Therefore, in this computer system, power consumption is reduced as compared with the conventional computer system.

  A computer system according to a second invention is the computer system according to the first invention, further comprising a specific signal transmission unit. When the first specific software activation determining means determines that the first specific software is in an operable state, the specific signal transmission unit transmits a specific signal (hereinafter referred to as “specific signal”) to the second power supply control unit. Send. Then, when receiving the specific signal, the second power supply control unit turns the second computer from the off state to the on state. The “specific signal” here is, for example, a magic packet or the like.

  Therefore, this computer system can be easily constructed using existing functions (for example, a magic packet application).

  A computer system according to a third invention is the computer system according to the first invention or the second invention, and further comprises a first power supply control unit. The first power supply control unit automatically turns the first computer from the off state to the on state when the real time information matches the target activation time information. In the present invention, the first power control unit is, for example, “BIOS with timer-start function (Wake On LAN, etc.)” or the like.

  For this reason, in a computer system, all the computers can be started automatically. Therefore, if this computer system is used, it is possible to eliminate the need for a system administrator or the like to work early in the morning or work at night.

  A computer system according to a fourth invention is the computer system according to the third invention, further comprising second specific software activation determining means, first activation time measuring means, second activation time measuring means, and target activation time information deriving means. Prepare. The second specific software activation determining means determines whether the second computer is in an on state from an off state as to whether or not specific software (hereinafter referred to as “second specific software”) is operable in the second computer. Judgment is made by loopback test from the time point. The first activation time measuring means determines from “the time when the first computer is turned on from the off state” to “the time when the first specific software activation determining means determines that the first specific software is operable”. Time (hereinafter referred to as “first start-up time”). The second activation time measuring means is configured such that “the second specific software activation determination unit determines that the second specific software is in an operable state” from “the time when the second computer is turned on from the off state”. Time (hereinafter referred to as “second activation time”). The target activation time information deriving unit derives the target activation time information from the first activation time information, the second activation time information, and the target operation start time information of the first specific software.

  For this reason, when the operation start time of the second specific software is determined, the first computer and the second computer can be switched from the off state to the on state without taking unnecessary time. Therefore, in this computer system, the power consumption is further reduced as compared with the conventional computer system.

  A computer system according to a fifth aspect of the present invention includes a first computer, a second computer, a file usage status determination unit, and a second power supply control unit. The second computer is communicatively connected to the first computer. The file usage status determination means determines whether or not a file stored in the first computer is being used at a specific time (hereinafter referred to as “specific time”). Note that a plurality of “specific times” may be set here (for example, every minute, every second, etc.). The second power supply control unit causes the second power supply computer to change from the off state to the on state when the file use state determining means determines that the file is not being used at the specific time.

  By the way, if the schedule startup technology (see the column) is applied to a computer system in which the backup server computer performs backup processing on the file server computer after the file providing service of the file server computer ends, the startup schedule of the backup server computer Needs to be determined in advance in consideration of the startup time of the backup computer, the startup time of the backup application, the longest time required for post-processing of the file server computer, and the like. In such a case, the backup server computer is turned on so that the backup application is started immediately before the time obtained by adding the longest time required for post-processing of the file server computer to the file providing service end time of the file server computer. Is ideal. However, if there is no file access between the time before the file providing service end time of the file server computer and the file providing service end time, the post-processing is completed by the file providing service end time. That is, although the backup server computer can perform backup processing on the file server computer from the end time of the file providing service, it cannot do so. In such a case, the file server must be operating for the maximum time required for post-processing of the file server computer (because the file server computer must be operating during the backup process). On the other hand, when the computer system according to the present invention is applied to such a computer system, files stored in the file server computer at a time before the time required to start the backup application from the file providing service end time are stored. When not in use, the backup server computer can be immediately switched from the off state to the on state. If the file is not used as it is, the backup server can perform backup processing on the file server computer from the file providing service end time. That is, if the computer system according to the present invention is applied, the start time of the backup process may be advanced compared to the case where the conventional computer system is applied, and the operating time of the file server computer is reduced. It can be shortened. Therefore, in this computer system, power consumption is reduced as compared with the conventional computer system. In particular, when there are a plurality of file server computers, the power consumption is considerably reduced.

  In the computer system according to the first invention, as soon as the first specific software is operable in the first computer, the second computer is switched from the off state to the on state. That is, the computer system according to the present invention does not require a margin time required when the schedule activation technique is used. For this reason, in this computer system, it is possible to reduce the power consumption by a margin time. Therefore, in this computer system, power consumption is reduced as compared with the conventional computer system.

  The computer system according to the second invention can be easily constructed using existing functions (for example, a magic packet application).

  In the computer system according to the third aspect of the invention, all the computers can be automatically activated. Therefore, if this computer system is used, it is possible to eliminate the need for a system administrator or the like to work early in the morning or work at night.

  In the computer system according to the fourth aspect of the present invention, when the operation start time of the second specific software is determined, the first computer and the second computer can be switched from the off state to the on state without wasting time. Therefore, in this computer system, the power consumption is further reduced as compared with the conventional computer system.

  When the computer system according to the fifth invention is applied to a computer system in which the backup server computer performs backup processing on the file server computer after the file providing service of the file server computer ends, the backup application is started from the file providing service end time. When the file stored in the file server computer is not used at the time before the time required for the backup server computer, the backup server computer can be immediately switched from the off state to the on state. If the file is not used as it is, the backup server can perform backup processing on the file server computer from the file providing service end time. That is, if the computer system according to the present invention is applied, the start time of the backup process may be advanced compared to the case where the conventional computer system is applied, and the operating time of the file server computer is reduced. It can be shortened. Therefore, in this computer system, power consumption is reduced as compared with the conventional computer system. In particular, when there are a plurality of file server computers, the power consumption is considerably reduced.

  A computer system 1 according to an embodiment of the present invention is a server / client type computer system, and mainly includes a server side system 2 and a client side system 3 as shown in FIG. Hereinafter, each of the server side system 2 and the client side system 3 will be described in detail.

1. Server Side System As shown in FIG. 1, the server side system 2 includes an authentication server computer (hereinafter abbreviated as “AU server”) 10, a database server (hereinafter abbreviated as “DB server”) 20, a backup server computer ( This is constructed from a “BU server” (hereinafter referred to as “BU server”) 30, a file server computer (hereinafter abbreviated as “FL server”) 41 and 42 and a first hub 51.

  The AU server 10 is a server that plays a role of determining whether or not a client computer (hereinafter abbreviated as “CL computer”) 61 to 68 that has accessed has an access right to the server-side system 2 based on authentication data. It is mainly composed of a mother board, BIOS, CPU, main memory, hard disk, network adapter and the like. The AU server 10 is installed with various software such as an operating system, an authentication service application, and a driver. In the present embodiment, the BIOS of the AU server 10 is provided with a timer start / stop function, and this BIOS can automatically start or stop the AU server 10 at a set time. Further, the network adapter and operating system of the AU server 10 are compatible with Wake On LAN. The AU server 10 transmits a magic packet to the DB server 20 at a specific timing, and automatically starts or stops the DB server 20.

  The DB server 20 is a server that plays a role of providing authentication data in response to a request from the AU server 10 and mainly includes a motherboard, a BIOS, a CPU, a main memory, a hard disk, a network adapter, and the like. The DB server 20 is installed with software such as an operating system and a database application. The network adapter and operating system of the DB server 20 are compatible with Wake On LAN. Then, when receiving the magic packet transmitted from the AU server 10, the network adapter of the DB server 20 automatically starts or stops the DB server 20. In this embodiment, the DB server 20 transmits a magic packet to the FL servers 41 and 42 at a specific timing, and automatically starts or stops the FL servers 41 and 42.

  The BU server 30 is a server that receives and stores the backup data transmitted from the FL servers 41 and 42, and mainly includes a motherboard, a BIOS, a CPU, a main memory, a hard disk, a network adapter, and the like. ing. The BU server 30 is installed with various software such as an operating system, a backup application, and a driver. The network adapter and operating system of the BU server 30 are compatible with Wake On LAN. When the network adapter of the BU server 30 receives the magic packet transmitted from the FL servers 41 and 42, it automatically starts or stops the BU server 30.

  The FL servers 41 and 42 are accessible to the CL computers 61 to 68 that have been authenticated by the AU server 10, and mainly provide files created by various applications to the CL computers 61 to 68. It is a server that plays a role of storing. These FL servers 41 and 42 are mainly composed of a motherboard, a BIOS, a CPU, a main memory, a hard disk, a network adapter, and the like. In addition, software such as an operating system and a file providing service application is installed in these FL servers 41 and 42. Note that the network adapters and operating systems of the FL servers 41 and 42 are compatible with Wake On LAN. The network adapters of these FL servers 41 and 42 automatically start or stop the FL servers 41 and 42 when receiving the magic packet transmitted from the DB server 20. The FL servers 41 and 42 transmit magic packets to the BU server 30 at a specific timing, and automatically start or stop the BU server 30. In the present embodiment, the FL servers 41 and 42 are set to perform a file providing service from 5:00 to 22:00.

  The first hub 51 connects the AU server 10, the DB server 20, the BU server 30, and the FL servers 41 and 42 to form a server-side system 2. The first hub 51 is also connected to the second hub 52, and is connected to the client side system 3 via the second hub 52.

2. Client Side System The client side system 3 is constructed from a plurality of CL computers 61 to 68 and a second hub 52, as shown in FIG.

  Each of the CA computers 61 to 68 is a computer provided for a person to actually work, and is provided with an input device such as a keyboard and a mouse.

  As shown in FIG. 1, the second hub 52 connects a plurality of CA computers 61 to 68 via a network to construct a client side system 3. The second hub 52 is also connected to the first hub 51 and is connected to the server side system 2 via the first hub 51 via a network.

<Automatic start control of AU server, DB server and FL server>
As described above, in the computer system 1 according to the present embodiment, the file providing service of the FL servers 41 and 42 starts at 5:00. The AU server 10 determines the time t1 determined in consideration of the start time of the file providing service of the FL servers 41 and 42 and the activation time of the AU server 10, the DB server 20, and the FL servers 41 and 42 (see FIG. 2). Automatically started. The DB server 20 is automatically started by the AU server 10, and the FL servers 41 and 42 are automatically started by the DB server 20. Hereinafter, automatic activation control of the AU server 10, the DB server 20, and the FL servers 41 and 42 will be described with reference to FIGS.

(1) Automatic activation control of AU server In FIG. 3, in step S11, the BIOS of the AU server 10 determines whether or not the current time Tr is t1. As a result of the determination in step S11, when the current time Tr is t1, the process proceeds to step S12. As a result of the determination in step S11, if the current time Tr is not t1, the process returns to step S11. In the present embodiment, t1 is obtained from an equation of t1 = t4− (T1max + T2max + T3max) (see FIG. 2). Here, t4 is the file providing service start time of the FL servers 41 and 42, and is defined as 5:00 in the present embodiment. T1max is the longest time from the time t3 when the FL servers 41 and 42 are turned on to the time t4 when the file providing service is enabled, and T2max is from the time t2 when the DB server 20 is turned on. T3max is the longest time from the time t1 when the power of the AU server 10 is turned on to the time t2 at which the authentication service is possible. T1max, T2max, and T3max are updated only in each server computer when the startup times T1, T2, and T3 measured each time the server computer is started are larger than T1max, T2max, and T3max. Further, as is clear from FIG. 2, the FL servers 41 and 42 are actually in a state where a file providing service is already possible at t4 ′.

  In step S12, the BIOS starts the AU server 10 and starts measuring the startup time T3. The “startup process” here includes a start process of the AU server 10 itself, a start process of the operation system, a start process of the authentication service application, and the like.

  In step S13, the CPU of the AU server 10 performs a loopback test on the authentication service application, and determines whether or not the authentication service can be provided. As a result of the determination in step S13, when the authentication service can be provided, the process proceeds to step S14. If the result of determination in step S <b> 13 is that the authentication service is not yet available, processing returns to step S <b> 13.

  In step S14, the CPU stops measuring the activation time T3 and writes the measurement result in the main memory.

  In step S15, the CPU instructs the network adapter to transmit a magic packet to the DB server 20.

  In step S16, the CPU reads the measurement result from the main memory, and determines whether or not the activation time T3 is longer than the longest activation time T3max. As a result of the determination in step S16, if the activation time T3 is longer than the longest activation time T3max, the process proceeds to step S17. As a result of the determination in step S16, when the activation time T3 is equal to or shorter than the longest activation time T3max, the process proceeds to step S17.

  In step S17, the CPU replaces the longest activation time T3max with the activation time T3 and updates the longest activation time T3max.

(2) Automatic Start Control of DB Server In FIG. 4, in step S21, it is determined whether or not the network adapter of the DB server 20 has received a magic packet. If the result of determination in step S21 is that the network adapter has received a magic packet, processing proceeds to step S22. If the result of determination in step S21 is that the network adapter has not received a magic packet, processing returns to step S21.

  In step S22, the BIOS of the DB server 20 performs a startup process and starts measuring the startup time T2. The “startup process” mentioned here includes the start process of the DB server 20 itself, the start process of the operation system, the start process of the database application, and the like.

  In step S23, the CPU of the DB server 20 performs a loopback test on the database application to determine whether or not the data providing service can be provided. As a result of the determination in step S23, when the data providing service can be provided, the process proceeds to step S24. If the result of determination in step 23 is that data provision service is not yet available, processing returns to step S23.

  In step S24, the CPU stops measuring the activation time T2, and writes the measurement result in the main memory.

  In step S25, the CPU instructs the network adapter to transmit a magic packet to the FL servers 41 and.

  In step S26, the CPU reads the measurement result from the main memory, and determines whether or not the activation time T2 is longer than the longest activation time T2max. As a result of the determination in step S26, when the activation time T2 is longer than the longest activation time T2max, the process proceeds to step S27. As a result of the determination in step S26, when the activation time T2 is equal to or shorter than the longest activation time T2max, the process ends.

  In step S27, the CPU replaces the longest activation time T2max with the activation time T2, and updates the longest activation time T2max.

  In step S28, the CPU instructs the network adapter to transmit T2max to the AU server 10.

(3) Automatic start control of FL server In FIG. 5, it is determined in step S31 whether the network adapter of FL servers 41 and 42 has received a magic packet. If the result of determination in step S31 is that the network adapter has received a magic packet, processing proceeds to step S32. If the result of determination in step S31 is that the network adapter has not received a magic packet, processing returns to step S31.

  In step S32, the BIOS of the FL servers 41 and 42 performs a startup process and starts measuring the startup time T1. The “startup process” here includes a start process of the FL servers 41 and 42, an operation system start process, a file providing service application start process, and the like.

  In step S33, the CPUs of the FL servers 41 and 42 perform a loopback test on the file providing service application to determine whether or not the file providing service can be provided. As a result of the determination in step S33, if the file providing service can be provided, the process proceeds to step S34. As a result of the determination in step S33, if the file providing service is not yet ready to be provided, the process returns to step S33.

  In step S34, the CPU stops measuring the activation time T1, and writes the measurement result in the main memory.

  In step S35, the CPU reads the measurement result from the main memory, and determines whether or not the activation time T1 is longer than the longest activation time T1max. As a result of the determination in step S35, if the activation time T1 is longer than the longest activation time T1max, the process proceeds to step S36. As a result of the determination in step S35, when the activation time T1 is less than or equal to the longest activation time T1max, the process ends.

  In step S36, the CPU replaces the longest activation time T1max with the activation time T1, and updates the longest activation time T1max.

  In step S37, the CPU instructs the network adapter to transmit T1max to the AU server 10.

<Determination of the next start time of the AU server>
As described above, the AU server 10 holds T3max. Further, T2max is transmitted from the DB server 20 and T1max is transmitted from the FL servers 41 and 42 to the AU server 10. In this AU server 10, T1max, T2max, and T3max are subtracted from t4, that is, 5:00, to determine the next activation start time t1.

<Backup processing and stop control of FL server and BU server>
In the computer system 1 according to the present embodiment, backup processing is performed on the FL servers 41 and 42 after the file providing service is completed. Hereinafter, this backup processing will be described separately for processing on the FL server side and processing on the BU server side.

(1) Processing on FL Server Side In FIGS. 6 and 7, in step S41, the CPUs of the FL servers 41 and 42 determine whether or not the current time Tr is t5. As a result of the determination in step S41, when the current time Tr is t5, the process proceeds to step S42. As a result of the determination in step S41, when the current time Tr is not t5, the process returns to step S41. In the present embodiment, t5 is obtained from the equation t5 = t7−T4max (see FIG. 2). Here, t7 (see FIG. 2) is the file providing service end time of the FL servers 41 and 42, and is defined as 22:00 in the present embodiment. T4max is the longest time from time t6 when the power of the BU server 30 is turned on to time t8 when the backup service is available. This T4max is provided from the BU server 30.

  In step S42, the CPU starts monitoring a file use session.

  In step S43, the CPU determines whether there is a file use session. If the result of determination in step S43 is that there is no file usage session, processing proceeds to step S44. If the result of determination in step S43 is that there is a file usage session, processing proceeds to step S47.

  In step S44, the CPU instructs the network adapter to transmit a magic packet to the BU server 30.

  In step S45, the CPU determines whether or not the current time Tr is 22:00. As a result of the determination in step S45, if the current time Tr is 22:00, the process proceeds to step S46. As a result of the determination in step S45, if the current time Tr is not 22:00, the process returns to step S45.

  In step S46, the CPU ends the file use session.

  In step S47, the CPU determines whether or not the current time Tr is 22:00. As a result of the determination in step S47, if the current time Tr is not 22:00, the process returns to step S43. If the result of determination in step S47 is that the current time Tr is 22:00, the process moves to step S48.

  In step S48, the CPU ends the file use session.

  In step S49, the CPU instructs the network adapter to transmit a magic packet to the BU server 30.

  In step S50, the CPU determines whether T4max has been received from the BU server 30 or not. As a result of the determination in step S50, when T4max is received from the BU server 30, the process proceeds to step S51. If the result of determination in step S50 is that T4max has not been received from the BU server 30, the process returns to step S50.

  In step S51, the CPU determines whether or not post-processing of the file providing service has been completed. If the post-processing of the file providing service is completed as a result of the determination in step S51, the process proceeds to step S52. If the post-processing of the file providing service is not yet completed as a result of the determination in step S51, the process returns to step S51.

  In step S52, the CPU instructs the network adapter to transmit a backup start instruction packet to the BU server 30.

  In step S53, it is determined whether or not the network adapter of the FL servers 41 and 42 has received the backup processing completion packet. If the result of determination in step S53 is that the network adapter has received a backup processing completion packet, the processing moves to step S54. If the result of determination in step S53 is that the network adapter has not received a backup processing completion packet, processing returns to step S53.

  In step S54, the CPU instructs the network adapter to transmit a shutdown packet to the DB server 20.

  In step S55, the CPU turns off the power of the FL servers 41 and 42 and shuts down.

(2) Processing on BU Server Side In FIGS. 8 and 9, in step S61, it is determined whether or not the network adapter of the BU server 30 has received a magic packet. If the result of determination in step S61 is that the network adapter has received a magic packet, processing proceeds to step S62. If the result of determination in step S61 is that the network adapter has not received a magic packet, processing returns to step S61.

  In step S62, the BIOS of the BU server 30 performs the activation process and starts measuring the activation time T4. The “startup process” mentioned here includes the start process of the BU server 30 itself, the start process of the operation system, the start process of the backup application, and the like.

  In step S63, the CPU of the BU server 30 performs a loopback test on the backup application, and determines whether or not the backup service can be provided. If the result of determination in step S63 is that a backup service can be provided, processing proceeds to step S64. If the result of determination in step S63 is that the backup service is not yet available, processing returns to step S63.

  In step S64, the CPU stops measuring the activation time T4 and writes the measurement result to the main memory.

  In step S65, the CPU reads the measurement result from the main memory, and determines whether or not the activation time T4 is longer than the longest activation time T4max. As a result of the determination in step S65, when the activation time T4 is longer than the longest activation time T4max, the process proceeds to step S66. As a result of the determination in step S65, when the activation time T4 is equal to or shorter than the longest activation time T4max, the process ends.

  In step S66, the CPU replaces the longest activation time T4max with the activation time T4 and updates the longest activation time T4max.

  In step S67, the CPU instructs the network adapter to transmit T4max to the FL servers 41 and 42.

  In step S68, it is determined whether the network adapter has received a backup start instruction packet. If the result of determination in step S68 is that the network adapter has received a backup start instruction packet, the process proceeds to step 69. As a result of the determination in step S68, if the network adapter has not yet received the backup start instruction packet, the process returns to step 68.

  In step S69, the CPU accesses the FL servers 41 and 42 and starts a backup service. At this time, the files stored in the FL servers 41 and 42 are copied to the hard disk of the BU server 30 while being compressed.

  In step S70, the CPU determines whether the backup service has ended. If the result of determination in step S70 is that the backup service has been completed, processing moves to step S71. If the result of determination in step S <b> 70 is that the backup service has not yet ended, processing returns to step S <b> 70.

  In step S71, the CPU causes the FL server 41, 42 to transmit a backup processing completion packet to the network adapter.

  In step S72, the CPU turns off the power of the BU server 30 and shuts it down.

<Stop control of AU server and DB server>
(1) DB Server Stop Control In FIG. 10, it is determined in step S81 whether the network adapter of the DB server 20 has received a shutdown packet. If the result of determination in step S81 is that the network adapter has received a shutdown packet, the processing moves to step S82. If the result of determination in step S81 is that the network adapter has not received a shutdown packet, processing returns to step S81.

  In step S82, the CPU instructs the network adapter to transmit a shutdown packet to the AU server 10.

  In step S83, the CPU turns off the power of the DB server 20 and shuts down.

(2) AU Server Stop Control In FIG. 11, in step S91, it is determined whether or not the network adapter of the AU server 10 has received a shutdown packet. If the result of determination in step S91 is that the network adapter has received a shutdown packet, processing proceeds to step S92. If the result of determination in step S91 is that the network adapter has not received a shutdown packet, processing returns to step S91.

  In step S92, the CPU turns off the AU server 10 and shuts it down.

<Characteristics of computer system>
(1)
In the computer system 1 according to the present embodiment, when the AU server 10 is ready to provide an authentication service, the AU server 10 automatically starts the DB server 20. Further, when the DB server 20 is ready to provide the data providing service, the DB server 20 automatically activates the FL servers 41 and 42. For this reason, in this computer system 1, it is not necessary to consider the margin time required when the schedule activation technique is used. Therefore, in this computer system 1, it is possible to reduce the power consumption by the margin time. Therefore, in this computer system 1, power consumption is reduced as compared with a computer system using a schedule activation technique.

(2)
In the computer system 1 according to the present embodiment, the DB server 20, the FL servers 41 and 42, and the BU server 30 are automatically activated by a magic packet. Therefore, this computer system can be easily constructed using a magic packet application.

(3)
In the computer system 1 according to the present embodiment, the AU server 10 is automatically activated by the BIOS timer-activation function. For this reason, in the computer system 1, the server side system 2 is automatically activated. Therefore, in this computer system 1, it is not necessary for the system administrator or the like to go to work early in the morning or work at night.

(4)
In the computer system 1 according to the present embodiment, the file use session is monitored from t5 to t7 (file providing service end time), and the BU server 30 is automatically started when there is no file use session. The For example, when post-processing is completed before t7 in the FL servers 41 and 42, the BU server 30 can perform backup processing on the FL servers 41 and 42 immediately after t7. That is, the backup service provision start time of the BU server 30 is advanced, and the shutdown time of the FL servers 41 and 42 is also advanced. Therefore, in such a case, the startup time (time in which the FL servers 41 and 42 are turned on) is shortened. Therefore, in this computer system 1, power consumption is reduced as compared with a computer system using a schedule activation technique.

<Modification>
(A)
In the computer system 1 according to the previous embodiment, the server computers 10, 20, 30, 41, 42 are connected to the network via the first hub 51 in the server side system 2. , 42 may be connected by Pear to Pear. In this case, it is necessary that the AU server 10 is connected to the DB server 20, the DB server 20 is connected to the FL servers 41 and 42, and the BU server 30 is connected to the FL servers 41 and 42.

(B)
In the computer system 1 according to the previous embodiment, the FL servers 41 and 42 send a shutdown packet to the DB server 20 to shut down the DB server 20, but after the DB server 20 confirms the shutdown of the FL servers 41 and 42, The DB server 20 may shut itself down. Specifically, for example, it is conceivable that the DB server 20 transmits a response request packet to the FL servers 41 and 42 and shuts down when a response packet is not transmitted after a predetermined time has elapsed from the transmission time.

(C)
In the computer system 1 according to the previous embodiment, the DB server 20 transmits a shutdown packet to the AU server 10 to shut down the AU server 10. However, after the AU server 10 confirms the shutdown of the DB server 20, the AU server 10 Can be shut down by themselves. Specifically, for example, the AU server 10 may transmit a response request packet to the DB server 20 and shut down when a response packet is not transmitted after a predetermined time has elapsed from the transmission time.

(D)
In the computer system 1 according to the previous embodiment, T1max, T2max and T3max are used to determine the activation time of the AU server 10, but when the activation time of the AU server 10 is determined using the longest activation time in this way. In the meantime, there is a concern that the activation start time of the AU server 10 will be brought forward to an unintended time, and the power consumption will not be sufficiently reduced. Therefore, the activation start time of the AU server 10 may be corrected periodically. For example, every time the FL servers 41 and 42 are activated, the actual file providing service startable time t4 ′ (see FIG. 2) is detected, and the target file providing service startable time t4 (in the previous embodiment, 5:00). ) Is subtracted from the actual file providing service start possible time t4 ′, and after obtaining the average value, the average value is notified to the AU server 10, and the AU server 10 updates the value at t1. It is conceivable to add the average value to delay the start time of its own. In addition, when t1 is corrected in this way, it is desirable to perform a confirmation test with a high load on holidays or the like. If it is determined in the confirmation test that the corrected t1 is not in time for the target file providing service start possible time t4, the CPU may be programmed to discard the correction.

(E)
In the computer system 1 according to the previous embodiment, the DB server 20 is automatically started by the AU server 10, the FL servers 41 and 42 are automatically started by the DB server 20, and the BU server 30 is automatically started by the FL servers 41 and 42. However, the FL servers 41 and 42 and the BU server 30 may be automatically activated by the AU server 10. In such a case, the DB server 20 notifies the AU server 10 that it has started up (for example, it is possible to use a special packet), and the AU server 10 that has received the notification notifies the FL servers 41 and 42. A magic packet is transmitted to automatically start the FL servers 41 and 42. Further, when there are no file usage sessions during the monitoring of the file usage session, the FL servers 41 and 42 notify the AU server 10 of the fact (for example, using a special packet or the like) and notify the notification. The received AU server 10 transmits a magic packet to the BU server 30 to automatically start the BU server 30. Further, when the current time Tr reaches t7, the FL servers 41 and 42 similarly notify the AU server 10 of the fact (for example, using a special packet or the like) and received the notification. The AU server 10 transmits a magic packet to the BU server 30 to automatically start the BU server 30.

(F)
In the computer system 1 according to the previous embodiment, the DB server 20 and the FL servers 41 and 42 are automatically activated by magic packets. However, the DB server 20 and the FL servers 41 and 42 are activated by a timer like the AU server 10. You may make it start automatically by BIOS with a stop function. In such a case, the DB server 20 is set to be automatically started at t4-T1max-T2max, and the FL servers 41, 42 are set to be automatically started at t4-T1max.

  The computer system according to the present invention has a feature that power consumption can be reduced as compared with a conventional computer system, and can contribute to power saving of the computer system.

It is a block diagram of a computer system concerning an embodiment of the invention. It is a timing chart which shows the starting flow of each server computer in the computer system which concerns on embodiment of this invention. It is a flowchart showing the automatic starting control of the authentication server computer which comprises the computer system which concerns on embodiment of this invention. It is a flowchart showing the automatic starting control of the database server computer which comprises the computer system which concerns on embodiment of this invention. It is a flowchart showing the automatic start control of the file server computer which comprises the computer system which concerns on embodiment of this invention. It is a part of flowchart which shows operation | movement of the file server computer at the time of backup processing, and a backup server computer. It is a flowchart showing the continuation of the flowchart shown by FIG. It is a part of flowchart which represents the automatic start stop control of the backup server computer which comprises the computer system which concerns on embodiment of this invention. It is a flowchart showing the continuation of the flowchart shown by FIG. It is a flowchart showing the automatic stop control of the database server computer which comprises the computer system which concerns on embodiment of this invention. It is a flowchart showing the automatic stop control of the authentication server computer which comprises the computer system which concerns on embodiment of this invention.

Explanation of symbols

1 computer system 10 authentication server computer (first computer)
20 Database server computer (first computer, second computer)
30 Backup server computer (second computer)
41, 42 File server computer (first computer, second computer)

Claims (5)

A first computer (10, 20);
A second computer (20, 30) that is communicatively connected to the first computer;
A first loopback test is performed to determine whether or not specific software (hereinafter referred to as “first specific software”) is operable in the first computer from the time when the first computer is turned on. Specific software activation determination means;
A computer system comprising: a second power supply control unit that turns the second computer from an off state to an on state when the first specific software activation determination unit determines that the first specific software is in an operable state. (1). When the first specific software activation determining means determines that the first specific software is in an operable state, a specific signal (hereinafter referred to as “specific signal”) is transmitted to the second power control unit. A specific signal transmission unit;
2. The computer system according to claim 1, wherein the second power supply control unit turns the second computer from an off state to an on state when receiving the specific signal. The computer system according to claim 1, further comprising a first power supply control unit that automatically turns the first computer from an off state to an on state when the real time information matches the target activation time information. Whether or not specific software (hereinafter referred to as “second specific software”) is operable in the second computer is determined by a loopback test from the time when the second computer is turned off. Second specific software activation determining means for performing,
Time from “the time when the first computer is turned on from the off state” to “the time when the first specific software activation determination means determines that the first specific software is operable” First activation time measuring means for measuring (first activation time),
Time from “the time when the second computer is turned on from the off state” to “the time when the second specific software activation determination unit determines that the second specific software is operable” (hereinafter, Second activation time measuring means for measuring (second activation time);
The target activation time information deriving means for deriving the target activation time information from the information on the first activation time, the information on the second activation time, and the information on the target operation start time of the first specific software. The computer system described in 1. A first computer (41, 42);
A second computer (30) communicatively connected to the first computer;
File usage status determination means for determining whether or not a file stored in the first computer is used at a specific time (hereinafter referred to as “specific time”);
A computer system (1) comprising: a second power supply control unit that turns the second computer from an off state to an on state when the file use state determination unit determines that the file is not used at the specific time. .

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