JP2011221634A - Computer system, logic section management method and logic division processing program - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a virtualization method for realizing the emulation of hardware for virtualizing the hardware and guaranteeing the stability of a performance by logic division in a server virtualization technique.SOLUTION: The computer system comprises a management computer for managing a plurality of computers and computers provided with a logic division processing unit for generating at least one logic section. When receiving a request to generate the logic section to which a virtual device is allocated, the logic division processing unit generates the logic section including a first sub logic section provided with a first logical processor for which a processor is logically divided, the virtual device and a virtual device driver for controlling the virtual device, and a second sub logic section provided with a second logical processor for which the processor is logically divided, a logical device for which the device is logically divided, and a device driver for controlling the logical device.

Description

  The present invention relates to a computer system, and more particularly to a method for constructing a plurality of virtual computers on a computer.

  In a computer system, there is server virtualization as a method of constructing a plurality of virtual servers on one server.

  As a server virtualization method, a CPU, memory, and I / O device included in one server are shared by a plurality of virtual servers, and the CPU, memory, and I / O device are allocated to each virtual server as necessary. There is a sharing method assigned to a server (for example, see Patent Document 1).

  As another method, there is a logical partitioning method in which a CPU, a memory, an I / O device, and the like included in one server are logically divided into a plurality of logical partitions (hereinafter referred to as logical partitions). is there. In the logical partitioning method, the business program running on the logical partition occupies the logically partitioned CPU, memory, I / O device, etc., so the merit of stabilizing the execution performance of the business program running on the logical partition There is.

  However, the logical partitioning method described above has the following problems in response to the need to migrate a business program built on one server to another server.

  That is, in the logical partitioning method, even if the same CPU architecture is used, depending on the hardware device (hereinafter referred to as a device) such as a chipset or an I / O device provided in each server, There are cases where business programs cannot be executed on the server without modification.

US Pat. No. 6,496,847

  In order to solve the above-described problem, a method of making a virtual device appear to a business program running on the server, regardless of the device included in the server, can be considered.

  However, in the above-described method, the business program that operates in the logical partition is affected by the overhead caused by the process for showing the virtual device, so that the execution performance of the business program becomes unstable.

  An object of the present invention is to stabilize the overhead of processing for concealing differences in server hardware in server virtualization technology. That is, it is to provide a server virtualization technology that realizes hardware virtualization and prevents the business program from being affected by the migration to a server with different hardware.

  A typical example of the present invention is as follows. That is, a management computer that includes a first processor and a first memory connected to the first processor, manages a plurality of computers, and is connected to the second processor and the second processor. And a logical partition processing unit that generates one or more logical partitions by logically partitioning the second processor and the device, the logical partition processing unit A first logical processor that logically divides the second processor when receiving a generation request for the logical partition to which a virtual device that is a virtual device is allocated from the management computer; A first sub-logical partition comprising a virtual device and a virtual device driver for controlling the virtual device; and the second processor Generating the logical partition comprising a second sub-logical partition comprising a second logical processor that is logically divided, a logical device that logically divides the device, and a device driver that controls the logical device In the first sub-logical partition, a business program corresponding to a predetermined business is executed, and in the second sub-logical partition, a virtual for processing an instruction for the virtual device included in the first sub-logical partition. The virtual device driver obtains the first instruction when the first instruction for the virtual device is issued from the business program, and the virtual device driver obtains the obtained first instruction. The virtualization process program acquires the first instruction, and the acquired first instruction is transmitted to the logical device. Against it converted into a second instruction, and transmits the execution result of the converted second command to the business program.

  According to the present invention, in server virtualization based on logical partitioning, it is possible to realize hardware virtualization and guarantee the stability of the performance of the first secondary logical partition that executes a business program.

It is a block diagram explaining the structural example of the computer system of embodiment of this invention. It is a block diagram explaining the structure of the logical partition of the server of embodiment of this invention. It is explanatory drawing which shows the structural example of the business program of embodiment of this invention. It is explanatory drawing which shows the structural example of the difference concealment software of embodiment of this invention. It is explanatory drawing which shows an example of the device map table of embodiment of this invention. It is explanatory drawing which shows an example of the conversion table of embodiment of this invention. It is a flowchart explaining the production | generation process of a logical partition in embodiment of this invention. It is a flowchart explaining the production | generation process of the logical partition which the logical partition program of embodiment of this invention performs. It is a flowchart explaining the starting process of the logical partition in embodiment of this invention. It is a flowchart explaining the process of the command execution with respect to the device in the logical partition of embodiment of this invention. It is a flowchart explaining the reception process of the data with respect to the device in the logical partition of embodiment of this invention. It is explanatory drawing which shows an example of UI (User Interface) displayed for logical partition production | generation in embodiment of this invention. It is a block diagram explaining the process in case a user accesses the logical partition of embodiment of this invention.

  Embodiments of the present invention will be described below.

[Embodiment]
FIG. 1 is a block diagram illustrating a configuration example of a computer system according to an embodiment of this invention.

  The computer system according to this embodiment includes a management server 10, an input / output device 15, a management network 17, and a server 50. The management server 10 and the server 50 are connected to each other via the management network 17.

  The management server 10 includes a CPU 12, a memory 11, a NIC (Network Interface Card) 13, and an I / O device 14.

  The CPU 12 executes a program developed on the memory 11.

  The memory 11 stores a program executed by the CPU 12 and information necessary for executing the program. The memory 11 stores a management program 20.

  The management program 20 is a program for managing the logical partition 70 generated on the server 50.

  Note that the functions realized by the management program 20 may be implemented by hardware, firmware, or a combination thereof installed in the management server 10.

  The NIC 13 is an interface for connecting to the management network 17. The I / O device 14 is an interface for connecting to the input / output device 15.

  The input / output device 15 is a device such as a mouse, a keyboard, and a display, and is used to input / output information between the management server 10 and the user.

  The server 50 includes a CPU 51, a memory 52, a device 53, and a NIC 54.

  The CPU 51 executes a program developed on the memory 52.

  The memory 52 stores a program executed by the CPU 51 and information necessary for executing the program. The memory 52 stores the logical partition program 60.

  The logical partitioning program 60 is a program for logically dividing the CPU 51, the memory 52, and the device 53 of the server 50 to generate one or more logical partitions 70. Here, the device 53 indicates, for example, a NIC, an HBA (Host Bus Adapter), a CAN (Converged Network Adapter), a chip set, and the like.

  As a method of assigning the CPU 51 to the logical partition 70, when the CPU 51 includes a plurality of cores, a method of assigning each core to each logical partition 70 can be considered. As a method of assigning the memory 52 to the logical partition 70, a method of assigning a part of the address area of the memory 52 to each logical partition 70 can be considered.

  Information regarding the logical partition 70 generated by the logical partitioning program 60 is stored in a logical partition table 61 provided in the logical partitioning program 60. The logical partition table 61 stores a logical partition name for identifying the logical partition 70, and the logical partitioning program 60 identifies the logical partition 70 by the logical partition name.

  Further, the logical partition 70 that is data of one or more logical partitions generated by the logical partitioning program 60 is stored on the memory 52. Each logical partition 70 includes a business program 81 and a difference concealment software 82, respectively.

  The business program 81 is a program for executing a business. The difference concealment software 82 is software for executing processing (emulation processing) for concealing device differences. The difference concealment software 82 includes a program and information necessary for executing the program.

  Details of the business program 81 will be described later with reference to FIG. Details of the difference concealment software 82 will be described later with reference to FIG.

  The functions realized by the logical partitioning program 60 and the difference concealment software 82 may be implemented by hardware installed in the server 50, firmware, or a combination thereof.

  FIG. 2 is a block diagram illustrating the configuration of the logical partition 70 of the server 50 according to the embodiment of this invention.

  The server 50 executes the logical partition program 60 to logically divide the CPU 51, the memory 52, and the device 53 of the server 50 and assign them to one or more logical partitions 70.

  The logical partition 70 generated by the logical partitioning program 60 includes a first secondary logical partition 91 and a second secondary logical partition 92. The CPU 51, the memory 52, and the device 53 assigned to the logical partition 70 are assigned to the first secondary logical partition 91 and the second secondary logical partition 92, respectively.

  The first secondary logical partition 91 includes a CPU 510, a memory 520, and a logical device 900.

  The CPU 510 is a CPU assigned to the first secondary logical partition 91. The memory 520 is a memory allocated to the first secondary logical partition 91. The memory 520 stores a business program 81.

  The logical device 900 is a logical device generated by the logical partition program 60. In other words, the actual device 53 is not allocated to the first secondary logical partition 91, but the logical device 900 that is a virtual device is allocated.

  The second secondary logical partition 92 includes a CPU 511, a memory 521, and a device 530.

  The CPU 511 is a CPU assigned to the second secondary logical partition 92. The memory 521 is a memory allocated to the second secondary logical partition 92. The memory 521 stores the difference concealment software 82.

  The first secondary logical partition 91 and the second secondary logical partition 92 each include a shared memory 540 that can be accessed. A part of the address area of the memory 52 is allocated to the shared memory 540.

  The present invention is characterized in that a single secondary logical partition 91 that executes the business program 81 and a second secondary logical partition 92 that executes the difference concealment software 82 are included for one logical partition 70. That is, a resource for executing the business program 81 and a resource for executing the difference concealment software 82 are allocated separately. Therefore, the business program 81 can be executed without being affected by the difference concealment software 82, and the execution performance of the business program 81 can be stabilized.

  FIG. 3 is an explanatory diagram illustrating a configuration example of the business program 81 according to the embodiment of this invention.

  The business program 81 includes an application 811, an OS (Operating System) 812, and a logical driver 813.

  The OS 812 is an OS that runs on the first secondary logical partition 91. An application 811 is an application executed on the OS 812. When the application 811 is executed, a task corresponding to the application 811 is executed.

  The logical driver 813 is a device driver corresponding to the logical device 900 included in the first secondary logical partition 91. The logical driver 813 can be installed by a method such as CD-ROM or network download.

  FIG. 4 is an explanatory diagram illustrating a configuration example of the difference concealment software 82 according to the embodiment of this invention.

  The difference concealment software 82 includes a control program 821, an actual driver 822, a device map table 823, and a conversion table 824.

  The control program 821 is a program for controlling the second secondary logical partition 92. The real driver 822 is a driver for controlling the device 530 assigned to the second secondary logical partition 92. The actual driver 822 may use a driver provided by the vendor of the device 53.

  The device map table 823 is a table that manages the correspondence between the logical device 900 and the device 530. Details of the device map table 823 will be described later with reference to FIG.

  The conversion table 824 is a table that manages the correspondence between instructions for the logical device 900 and instructions for the device 530. One conversion table 824 exists for each correspondence between the logical device 900 and the device 530. Details of the conversion table 824 will be described later with reference to FIG.

  FIG. 5 is an explanatory diagram illustrating an example of the device map table 823 according to the embodiment of this invention.

  The device map table 823 stores a correspondence relationship between the logical device 900 and the device 530. The device map table 823 includes a logical device identifier 841 and a device identifier 842.

  The logical device identifier 841 stores an identifier for specifying the logical device 900 included in the first secondary logical partition 91. As an identifier for specifying the logical device 900, for example, a bus number, a device number or a function number of the logical device 900, or a combination thereof can be considered.

  The device identifier 842 stores an identifier for specifying the device 530 included in the second secondary logical partition 92. The identifier for specifying the device 530 may be, for example, a bus number, a device number or a function number of the device 530, or a combination thereof.

  FIG. 6 is an explanatory diagram illustrating an example of the conversion table 824 according to the embodiment of this invention.

  The conversion table 824 stores a correspondence relationship between an instruction for the logical device 900 included in the first secondary logical partition 91 and an instruction for the device 530 included in the second secondary logical partition 92. The conversion table 824 includes a logical instruction 831 and a real instruction 832.

  The logical instruction 831 stores an instruction for the logical device 900 included in the first secondary logical partition 91. The actual instruction 832 stores an instruction of the device 530 included in the second secondary logical partition 92 corresponding to the instruction stored in the logical instruction 831.

  As shown in FIG. 6, when one instruction stored in the logical instruction 831 is expanded into a plurality of instructions, the plurality of instructions are stored in the corresponding row of the actual instruction 832.

  FIG. 7 is a flowchart for explaining the generation processing of the logical partition 70 in the embodiment of the present invention.

  The user transmits a logical partition generation request to the management program 20 using the input / output device 15 (step 201). The logical partition generation request includes specification information (CPU and memory resource amount, device type and number, etc.) necessary for generating the logical partition 70 and information indicating whether or not device difference concealment is necessary. It is.

  Hereinafter, specification information necessary for generating the logical partition 70 is described as specification information, and information indicating whether or not device difference concealment is necessary is described as difference concealment availability information.

  Note that a UI (User Interface) for setting specification information and difference concealment permission / inhibition information will be described later with reference to FIG.

  The management program 20 that has received the logical partition generation request acquires the specification information included in the logical partition generation request and the difference concealment availability information.

  The management program 20 transmits a logical partition generation instruction including the acquired specification information and difference concealment availability information to the logical partitioning program 60 (step 202).

  The logical partitioning program 60 receives the logical partition generation instruction and determines whether or not difference concealment is necessary based on the difference concealment availability information included in the received logical partition generation instruction (step 203).

  When it is determined that the difference concealment is necessary, the logical partitioning program 60 determines the logical structure composed of the first secondary logical partition 91 and the second secondary logical partition 92 based on the specification information included in the logical partition generation instruction. The partition 70 is generated (step 204), and a response indicating that the generation of the logical partition 70 is completed is transmitted to the management program 20.

  Details of the logical partition 70 generation processing in step 204 will be described later with reference to FIG.

  When it is determined that the difference concealment is not necessary, the logical partitioning program 60 generates the logical partition 70 based on the specification information included in the logical partition generation instruction (step 206), and the generation of the logical partition 70 is completed. Is sent to the management program 20.

  Note that the logical partition 70 generated in step 206 does not include the first secondary logical partition 91 and the second secondary logical partition 92.

  The management program 20 receives a response indicating that generation of the logical partition 70 has been completed from the logical partitioning program 60, notifies the user that generation of the logical partition has been completed (step 207), and ends the processing.

  The process of installing the business program 81 in the first secondary logical partition 91 may be executed by the user or the management program 20.

  FIG. 8 is a flowchart for describing processing for generating the logical partition 70 executed by the logical partitioning program 60 according to the embodiment of this invention.

  Based on the specification information received from the management program 20, the logical partition program 60 stores the definitions of the logical partition 70, the first secondary logical partition 91, and the second secondary logical partition 92 on the memory 52 (step 2041).

  The logical partitioning program 60 allocates the CPU 51 and the memory 52 to the first secondary logical partition 91 and the second secondary logical partition 92, respectively, based on the acquired specification information (step 2042).

  The logical partitioning program 60 allocates devices 530 such as NIC, HBA, CNA, and chipset to the second secondary logical partition 92 based on the acquired specification information (step 2043). Note that the device 53 to be allocated is a real device that physically exists.

  The logical partitioning program 60 loads the difference concealment software 82 into the memory 521 of the second secondary logical partition 92 (step 2044).

  The method of loading the difference concealment software 82 may be obtained by, for example, storing the difference concealment software 82 in the memory 52 in advance and obtaining the difference concealment software 82 from the memory 52, or an auxiliary storage device (not shown) or an external storage device (not shown). (Omitted) or may be obtained via a network.

  The logical partitioning program 60 generates a logical device 900 corresponding to the device 530 allocated to the second secondary logical partition 92, and allocates the generated logical device 900 to the first secondary logical partition 91 (step 2045).

  The logical partitioning program 60 updates the device map table 823 and the conversion table 824 (step 2046).

  Specifically, the correspondence between the logical device 900 assigned to the first secondary logical partition 91 and the device 530 assigned to the second secondary logical partition 92 is stored in the device map table 823 of the second secondary logical partition 92. . Also, the correspondence relationship between the command used for the logical device 900 and the command used for the device 530 is acquired, and the acquired correspondence relationship is stored in the conversion table 824. The instructions used for the logical device 900 and the instructions used for the device 530 may be stored in the memory 52 in advance and acquired from the memory 52 as necessary.

  Note that when the device 530 is dynamically assigned after the second secondary logical partition 92 is activated by a method such as plug and play, the logical partitioning program 60 causes the logical corresponding to the newly assigned device 530 to be added. A device 900 is generated, and the generated logical device 900 is assigned to the first secondary logical partition 91. When the device 530 is deleted from the second secondary logical partition 92, the logical partitioning program 60 deletes the logical device 900 corresponding to the deleted device 530 from the first secondary logical partition 91.

  FIG. 9 is a flowchart for explaining the activation processing of the logical partition 70 according to the embodiment of this invention.

  The logical partitioning program 60 receives an activation request from the management program 20 together with the identification information of the logical partition 70 to be activated (Step 600). As the identification information of the logical partition 70, for example, the logical partition name of the logical partition 70 can be considered.

  The logical partitioning program 60 that has received the activation request starts activation processing of the first secondary logical partition 91 and the second secondary logical partition 92 included in the logical partition 70 to be activated (step 601).

  The logical partitioning program 60 activates the first secondary logical partition 91 and the second secondary logical partition 92, respectively (Step 911, Step 921).

  The activated second secondary logical partition 92 starts activation of the control program 821 (step 922), and when activation is completed, transmits a completion notification of activation of the control program 821 to the logical partitioning program 60 (step 923).

  The activated first secondary logical partition 91 starts the process of incorporating the logical driver 813 of the business program 81 (step 912).

  The logical driver 813 of the first secondary logical partition 91 inquires of the logical partitioning program 60 about the identifier of the CPU 511 assigned to the second secondary logical partition 92 as an interrupt destination by accessing the logical device 900 (step 913). ). Here, as a method of accessing the logical device 900 by the logical driver 813, a method of instructing the logical device 900 to give a special command can be considered.

  The logical partitioning program 60 traps an inquiry to the logical device 900 (step 602).

  The logical partitioning program 60 confirms that the activation of the control program 821 of the second secondary logical partition 92 is complete (step 603).

  Specifically, the logical partitioning program 60 determines whether a startup completion notification for the control program 821 has been received from the second secondary logical partition 92. If it is determined that the activation completion notification of the control program 821 has not been received from the second secondary logical partition 92, the logical partitioning program 60 waits for the next execution of processing until the activation completion of the control program 821 is notified. .

  When it is determined that the activation completion notification of the control program 821 has been received from the second secondary logical partition 92, the logical partitioning program 60 assigns the identifier of the CPU 511 assigned to the second secondary logical partition 92 to the first secondary logical partition. 91 to the logical driver 813 (step 604).

  The first secondary logical partition 91 receives the identifier of the interrupted CPU 51 from the logical partitioning program 60, stores the identifier of the CPU 51 in the memory 520 of the first secondary logical partition 91 (step 914), and the logical driver 813 The installation process is completed (step 915).

  On the other hand, the second secondary logical partition 92 inquires of the logical partitioning program 60 about the identifier of the CPU 510 of the first secondary logical partition 91 that is the interrupt destination (step 924). Specifically, the control program 821 inquires of the logical partitioning program 60 about the identifier of the CPU 510 of the first secondary logical partition 91 that is an interrupt destination.

  In response to the inquiry received from the second secondary logical partition 92, the logical partitioning program 60 transmits the identifier of the CPU 510 assigned to the first secondary logical partition 91 (step 605). Specifically, the logical partitioning program 60 transmits the identifier of the CPU 510 assigned to the first secondary logical partition 91 to the control program 821.

  The control program 821 of the second secondary logical partition 92 receives the identifier of the interrupted CPU 510 (step 925).

  Although not shown, the second secondary logical partition 92 includes an I / F for transmitting and receiving information between the control program 821 and the logical partitioning program 60 (steps 923, 924, and 925).

  FIG. 10 is a flowchart illustrating processing for executing instructions to devices in the logical partition 70 according to the embodiment of this invention.

  The OS 812 instructs the logical driver 813 to execute an instruction (Step 7101). That is, an instruction (logical instruction) is issued to the logical device 900.

  The logic driver 813 acquires (traps) a logic instruction (step 7102).

  The logical driver 813 acquires the identifier of the logical device 900, the identifier of the logical instruction, and argument data of the logical instruction from the acquired logical instruction, and stores the acquired information in the shared memory 540 (step 7103).

  The logical driver 813 generates an inter-CPU interrupt and transmits the logical instruction to the control program 821 of the second secondary logical partition 92 (step 7104).

  Here, the CPU that is the generation destination of the inter-CPU interrupt is the CPU 511 assigned to the second secondary logical partition 92 acquired in step 913 in FIG. As a method of determining the CPU 511 where the inter-CPU interrupt is generated, a method in which the logical driver 813 obtains the inter-CPU interrupt from the logical partition program 60, and the logical partition program 60 traps the inter-CPU interrupt and converts the CPU identifier. A way to do this is conceivable.

  Further, instead of the inter-CPU interrupt, the logical driver 813 may write data to a specific area of the shared memory 540 and the control program 821 may poll and detect the memory area.

  The control program 821 acquires information on the logical instruction received from the second secondary logical partition 92 from the shared memory 540 (step 7105). Specifically, the identifier of the logical device 900 and the identifier of the logical instruction are acquired.

  The control program 821 converts the logical instruction into an instruction (actual instruction) for the device 530 (step 7106).

  Specifically, the control program 821 determines the device 530 of the second secondary logical partition 92 corresponding to the logical device 900 based on the acquired identifier of the logical device 900, the acquired instruction identifier, and the device map table 823. Is identified.

  Furthermore, the control program 821 refers to the conversion table 824 corresponding to the specified device 530 and converts the logical instruction into an actual instruction.

  The control program 821 instructs the real driver 822 corresponding to the identified device 530 to execute the converted instruction. That is, a real command is issued to the real driver 822 corresponding to the specified device 530.

  The real driver 822 executes the real instruction (step 7108), and when detecting that the execution of the real instruction is completed, the real driver 822 transmits a response to the execution of the instruction to the control program 821 (step 7109).

  The control program 821 generates an inter-CPU interrupt and notifies the instruction completion to the OS 812 of the first secondary logical partition 91 (step 7110).

  Here, the CPU that is the destination of the inter-CPU interrupt is the CPU 510 assigned to the first secondary logical partition 91. As a method of determining the CPU 511 as the generation destination of the inter-CPU interrupt, the control program 821 acquires from the logical partition program 60, and the logical partition program 60 traps the inter-CPU interrupt and converts the CPU identifier. A way to do this is conceivable.

  The OS 812 detects the completion of the instruction from the control program 821 (step 7111) and ends the process.

  FIG. 11 is a flowchart illustrating data reception processing for a device in the logical partition 70 according to the embodiment of this invention.

  The control program 821 detects an interrupt from the device 530 assigned to the second secondary logical partition 92 (step 7201). That is, a reception command for the device 530 is detected.

  The real driver 822 loads data from the device 530 in which the interrupt is detected and stores it in the shared memory 540 (step 7202).

  The control program 821 refers to the conversion table 824, converts the received instruction for the device 530 into an instruction for the logical device 900, stores the converted instruction in the shared memory 540, generates an inter-CPU interrupt, and Data reception is notified to the OS 812 of the logical partition 91 (step 7203).

  Here, the CPU that is the destination of the inter-CPU interrupt is the CPU 510 assigned to the first secondary logical partition 91. In addition, as a method of determining the generation destination of the inter-CPU interrupt to the CPU 510, a method in which the control program 821 acquires from the logical partition program 60, the logical partition program 60 traps the inter-CPU interrupt, and converts the CPU identifier A way to do this is conceivable.

  Upon receiving the data reception notification from the control program 821, the OS 812 detects an interrupt, acquires an instruction for the logical device 900 from the shared memory 540, and executes processing for the interrupt to the logical driver 813 based on the acquired instruction. (Step 7204).

  The logic driver 813 reads the data saved in step 7202 from the shared memory 540 (step 7205).

  The logical partitioning program 60 may control the memory address to which data is stored in the memory 521 by the DMA (Direct Memory Access) of the device 530 to be the address of the shared memory 540.

  In the present invention, the second secondary logical partition 92 converts the instruction received by the logical driver 813 into the instruction of the real driver 822 (steps 7105 to 7110), and the instruction received by the real driver 822 is the logical driver 813. The process (step 7201 to step 7203) for converting to the instruction is executed. That is, the second secondary logical partition 92 executes an emulation process between the logical device 900 and the device 530.

  This makes it possible to virtualize the device assigned to the first secondary logical partition 91. Therefore, even if the device 53 of the server 50 is changed, the business program 81 executed on the first secondary logical partition 91 is executed without being affected.

  Further, the business program 81 is executed using only the resources assigned to the first secondary logical partition 91, and the difference concealment software 82 is executed using only the resources assigned to the second secondary logical partition 92. The business program 81 and the difference concealment software 82 are executed without interfering with each other.

  Therefore, the delay associated with the above-described emulation processing does not occur in the first secondary logical partition 91. That is, since the first secondary logical partition 91 executes only the business program 81, the execution performance of the business program 81 is stabilized. Further, since the logical device 900 is assigned to the first secondary logical partition 91, the business program can be executed without being affected by the change of the device 53 of the server 50.

  FIG. 12 is an explanatory diagram illustrating an example of a UI (User Interface) displayed for generating the logical partition 70 according to the embodiment of this invention.

  The UI 250 for generating the logical partition 70 is used in step 201.

  The UI 250 is displayed on the input / output device 15 connected to the management server 10 or the display device of another terminal connected to the management server 10 via the network using a browser, a dedicated program, text, and the like. The

  The UI 250 includes a logical partition name input area 257, a necessary spec input area 251, a difference concealment selection area 252, a difference concealment spec input area 253, a necessary total resource display area 254, a determination button 255, and a cancel button 256.

  The logical partition name input area 257 is an area for inputting a name for identifying the logical partition 70 to be generated.

  The necessary specification input area 251 is an area for inputting specifications necessary for generating the logical partition 70 for operating the business program 81. Specifically, the number of CPUs (including the number of cores), memory capacity, and the performance and number of NICs and HBAs are input.

  When a check box of a later-described difference concealment selection area 252 is checked, a specification for generating the first sub logical partition 91 is input to the necessary specification input area 251.

  The difference concealment selection area 252 is an area for selecting whether or not difference concealment for concealing the change of the device 53 of the server 50 is necessary.

  In the example shown in FIG. 12, the user checks the check box of the difference concealment selection area 252 when the difference concealment is necessary, and checks the check box of the difference concealment selection area 252 when the difference concealment is unnecessary. Remove.

  When the check box of the difference concealment selection area 252 is checked, the logical partition 70 including the first secondary logical partition 91 and the second secondary logical partition 92 is generated. When the check box of the difference concealment selection area 252 is not checked, a normal logical partition 70 is generated.

  The difference concealment spec input area 253 is an area for inputting specs necessary for generating the second secondary logical partition 92.

  Specifically, the number of CPUs (including the number of cores) and the memory capacity are input.

  The display method of the difference concealment specification input area 253 includes a method of enabling input to the difference concealment specification input area 253 when the check box of the difference concealment selection area 252 is checked, and a check of the difference concealment selection area 252. A method of displaying the difference concealment specification input area 253 when the box is checked is conceivable.

  The necessary total resource display area 254 displays all resources for generating the logical partition 70, which are a combination of the spec input in the necessary spec input area 251 and the spec input in the difference concealment spec input area 253.

  The necessary total resource display area 254 is displayed by a method of always displaying the necessary total resource display area 254 or a method of displaying the necessary total resource display area 254 when the check box of the difference concealment selection area 252 is checked. Can be considered.

  Note that the UI 250 in which the difference concealment specification input area 253 and the necessary total resource display area 254 are not displayed may be used so that the user can easily realize the difference concealment.

  The decision button 255 is a button that is operated when generating the logical partition 70 based on information input to each input area.

  The cancel button 256 is a button operated when the generation of the logical partition 70 is stopped.

  When the difference concealment selection area 252 is checked, information input to the necessary spec input area 251 and the difference concealment spec input area 253 is spec information transmitted to the management program 20.

  FIG. 13 is a block diagram illustrating processing when the user accesses the logical partition 70 according to the embodiment of this invention.

  The user uses the input / output device 15 connected to the management server 10 to access the console of the logical partition 70 whose logical partition name is “AAA”.

  The management program 20 that has detected the access from the user transmits the logical partition name “AAA” as the logical partition 70 identifier to the logical partition program 60.

  The logical partitioning program 60 that has received the logical partition name “AAA” connects to the console of the first secondary logical partition 91 included in the logical partition 70 that has the received logical partition name “AAA”. As a result, the user can access the first secondary logical partition 91. That is, the user recognizes the first secondary logical partition 91 as the logical partition 70. This makes it easy to manage the user.

  According to one embodiment of the present invention, it is possible to virtualize the device of the first secondary logical partition 91 without making the user aware of the second secondary logical partition 92. Therefore, when the device 53 of the server 50 is changed, the execution of the business program 81 can be continued without being affected by the device 53 change.

  In addition, since the conversion process between the logical device 900 and the device 530 is executed by the second secondary logical partition 92, the execution performance of the business program 81 executed on the first secondary logical partition 91 can be stabilized. it can.

10 management server 11 memory 12 CPU
13 NIC
14 I / O device 15 Input / output device 17 Management network 20 Management program 50 Server 51 CPU
52 Memory 53 Device 54 NIC
60 Logical partition program 61 Logical partition table 70 Logical partition 81 Business program 82 Difference concealment software 91 First secondary logical partition 92 Second secondary logical partition 510 CPU
511 CPU
520 Memory 521 Memory 530 Device 811 Application 812 OS
813 Logical driver 821 Control program 822 Real driver 823 Device map table 824 Conversion table 900 Logical device

Claims (15)

A management computer for managing a plurality of computers, a second processor, and a device connected to the second processor, comprising a first processor and a first memory connected to the first processor A computer system comprising: a logical partition processing unit that generates one or more logical partitions by logically partitioning the second processor and the device;
When the logical partition processing unit receives a generation request for the logical partition to which a virtual device that is a virtual device is allocated from the management computer, the logical partition processing unit logically divides the second processor. A first sub-logical partition comprising a logical processor, the virtual device, and a virtual device driver for controlling the virtual device; and a second logical processor obtained by logically dividing the second processor; Generating the logical partition including a second sub-logical partition comprising a logical device obtained by logically dividing the device and a device driver for controlling the logical device;
In the first sub-logical partition, a business program corresponding to a predetermined business is executed,
In the second sub logical partition, a virtualization processing program for processing an instruction for the virtual device included in the first sub logical partition is executed,
The virtual device driver is
When the first instruction for the virtual device is issued from the business program, the first instruction is acquired;
Sending the acquired first instruction to the virtualization processing program;
The virtualization processing program is
Obtaining the first instruction;
Converting the obtained first instruction into a second instruction for the logical device;
A computer system, wherein the execution result of the converted second instruction is transmitted to the business program. The device includes a second memory;
The first sub-logical partition includes a first logical memory in which the second memory is logically divided;
The second sub-logical partition includes a second logical memory in which the second memory is logically divided;
The business program is stored in the first logical memory;
The virtualization processing program is stored in the second logical memory;
The logical partitioning processing unit
When generating the logical partition, the first logical processor and the first logical memory are allocated to the first sub logical partition, and the second logical processor and the second logical memory are allocated. And assigning the logical device to the second sub-logical partition,
The computer system according to claim 1, wherein the virtual device corresponding to the logical device is assigned to the first secondary logical partition. The second sub-logical partition holds instruction conversion information that holds a correspondence relationship between the first instruction and the second instruction;
The virtualization processing program is
Converting the acquired first instruction into the second instruction based on the instruction conversion information;
The computer system according to claim 2, wherein the converted second instruction is issued to the logical device driver. The virtual device driver is
Obtaining an identifier for identifying the second logical processor after the business program is started on the first sub-logical partition;
When the first instruction is acquired, by using the acquired identifier, the allocation to the second logical processor is generated to cause the acquired first instruction to the virtualization processing program. 4. The computer system according to claim 3, wherein transmission is performed. The first sub logical partition and the second sub logical partition include a shared memory in which the second memory is logically divided and accessible to each other,
When the first instruction is acquired, the virtual device driver generates an interrupt to the second logical processor, and writes the acquired first instruction to the shared memory.
The virtualization processing program is
The computer system according to claim 4, wherein the acquired first instruction is acquired from the shared memory. The logical device driver acquires an identifier for identifying the first logical processor after the virtualization processing program is started on the second sub logical partition,
The virtualization processing program is
Detecting a third instruction for the virtual device received by the logical partition;
Based on the instruction conversion information, the detected third instruction is converted into a fourth instruction to the virtual device;
Causing the first logical processor to generate an interrupt, and writing the converted fourth instruction to the shared memory;
The business program is
Obtaining the converted fourth instruction from the shared memory;
The computer system according to claim 4, wherein the converted fourth instruction is issued to the virtual device driver. The management computer includes an input / output device including a display unit for displaying information,
When the logical partition processing unit receives access to the logical partition from the management computer,
The computer system according to claim 1, wherein the first sub logical partition is displayed as the logical partition on the display unit. The management computer includes an input / output device including a display unit for displaying information,
The first memory is executed by the first processor and stores a management program for managing the logical partition;
The management program is
A selection unit that selects whether to generate a logical partition to which the virtual device is allocated, an input unit that inputs information necessary to generate the first sub logical partition, and the second sub unit The computer system according to claim 1, wherein an input screen including an input unit for inputting information necessary for generating a logical partition is displayed on the display unit. A management computer for managing a plurality of computers, a second processor, and a device connected to the second processor, comprising a first processor and a first memory connected to the first processor And a logical partition management method in a computer system comprising: a logical partition processing unit that generates one or more logical partitions by logically partitioning the second processor and the device,
The method
When the logical partition processing unit receives a generation request for the logical partition to which a virtual device, which is a virtual device, is allocated from the management computer, the first logically partitioning the second processor A logical processor, the virtual device, a virtual device driver for controlling the virtual device, a second sub-logical partition in which a predetermined business program is executed, and the second processor logically A divided second logical processor; a logical device obtained by logically dividing the device; and a device driver for controlling the logical device; and an instruction for the virtual device provided in the first sub-logical partition. A first step of generating the logical partition including the second sub logical partition in which a virtualization processing program to be processed is executed;
A second step in which the virtual device driver obtains the first instruction when a first instruction for the virtual device is issued from the business program;
A third step in which the virtual device driver transmits the acquired first instruction to the virtualization processing program;
A fourth step in which the virtualization processing program obtains the first instruction;
A fifth step in which the virtualization processing program converts the acquired first instruction into a second instruction for the logical device;
And a sixth step of transmitting the execution result of the converted second instruction to the business program, wherein the virtualization processing program includes a logical partition management method. The device includes a second memory;
The first sub-logical partition includes a first logical memory in which the second memory is logically divided;
The second sub-logical partition includes a second logical memory in which the second memory is logically divided;
The business program is stored in the first logical memory;
The virtualization processing program is stored in the second logical memory;
The first step includes
The logical partition processing unit assigning the first logical processor and the first logical memory to the first sub-logical partition;
Allocating the second logical processor, the second logical memory, and the logical device to the second sub-logical partition;
The logical partition management method according to claim 9, further comprising: assigning the virtual device corresponding to the logical device to the first secondary logical partition. The second sub-logical partition holds instruction conversion information that holds a correspondence relationship between the first instruction and the second instruction;
The fifth step includes
The virtualization processing program converting the acquired first instruction into the second instruction based on the instruction conversion information;
The logical partition management method according to claim 10, further comprising a step of issuing the converted second instruction to the logical device driver by the virtualization processing program. The method includes the step of the virtual device driver obtaining an identifier for identifying the second logical processor after the business program is started on the first secondary logical partition;
In the third step, the virtual device driver uses the acquired identifier to generate an allocation to the second logical processor, thereby causing the virtual processing program to execute the acquired first instruction. The logical partition management method according to claim 11, further comprising a step of transmitting to the logical partition. The first sub logical partition and the second sub logical partition include a shared memory in which the second memory is logically divided and accessible to each other,
The third step includes
The virtual device driver includes writing the acquired first instruction to the shared memory;
The virtual device driver generating an interrupt to the second logical processor;
The fourth step includes
The virtualization processing program detecting an interrupt to the second logical processor;
The logical partition management method according to claim 12, wherein the virtualization processing program includes a step of acquiring the acquired first instruction from the shared memory. The method
The logical device driver obtaining an identifier for identifying the first logical processor after the virtualization processing program is started on the second sub-logical partition;
The virtualization processing program detecting a third instruction for the virtual device received by the logical partition;
The virtualization processing program converting the detected third instruction into a fourth instruction to the virtual device based on the instruction conversion information;
The virtualization processing program writing the converted fourth instruction to the shared memory;
The virtualization processing program causing the first logical processor to generate an interrupt;
The business program obtaining the converted fourth instruction from the shared memory;
The logical partition management method according to claim 12, wherein the business program includes a step of issuing the converted fourth instruction to the virtual device driver. Logically dividing the first processor, the memory connected to the first processor, the device connected to the first processor, and the first processor, the first memory, and the device A logical partitioning processing program in a computer that generates one or more logical partitions,
When the logical partition processing program receives a generation request for the logical partition to which a virtual device that is a virtual device is assigned, the logical partition processing program includes a first logical processor that logically divides the first processor, and the virtual partition A first sub-logical partition comprising a device and a virtual device driver for controlling the virtual device, wherein a predetermined business program is executed, and a second logic obtained by logically dividing the first processor A virtualization processing program that includes a processor, a logical device that logically divides the device, and a device driver that controls the logical device, and that processes an instruction for the virtual device included in the first sub-logical partition Causing the computer to execute a procedure for generating the logical partition including the second sub-logical partition on which is executed. Logical partitioning processing program.

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