JP5488079B2 - Virtual device placement program and virtual device placement method - Google Patents

Description

  The present invention relates to a technique for managing a virtual device (virtual machine).

  In a data center that provides PaaS (Platform as a Service), IaaS (Infrastructure as a Service), etc., there is a risk that processing capacity may be lowered depending on the arrangement of virtual machines for a plurality of physical servers. For this reason, in order to suppress a decrease in processing capacity due to resources, in a network system in which a plurality of nodes are connected via a network, a technology for reconfiguring the network system according to the operation status of the nodes and the network is applied. Can be considered.

JP-A-4-114532

  However, in the data center, the timing of starting and stopping the virtual machines built on each physical server is different, so that the workload of the workers who manage the operation of the virtual machines may be reduced. is there. When a light workload occurs between workers, for example, even if a failure occurs in a virtual machine that is handled by a worker with a heavy workload, it may not be possible to deal with the service, and the service may be degraded. In a data center, it is normal to allow a resource to be consumed by a virtual machine. Therefore, a decrease in processing capacity due to a resource is not a problem.

  Therefore, in view of the problems of the prior art, an object of the present technology is to level the operation of virtual machines in a plurality of physical servers.

For this reason, in the present technology, when the computer generates virtual machine arrangement plan information to be arranged in a plurality of physical devices with reference to the work amount information required for operation management of the virtual apparatus stored in the storage device, A difference in the total amount of work required for operation management of virtual devices calculated for each of a plurality of physical devices is reduced. Then, the computer requests a plurality of physical devices to perform virtual device placement according to the virtual device placement plan information.

  According to the present technology, it is possible to level the operation of virtual devices in a plurality of physical devices.

It is a lineblock diagram showing an example of an information system to which this art is applied. It is explanatory drawing of an operation work amount table. It is explanatory drawing of an item work amount table. It is explanatory drawing of a VM management table. It is explanatory drawing of a work performance table. It is a flowchart explaining the update process of work amount. It is a flowchart explaining the main routine of the work amount setting process. It is a flowchart explaining the subroutine of the setting process of work amount. It is explanatory drawing of the table created temporarily by the setting process of work amount. It is explanatory drawing of the table created temporarily by the setting process of work amount. It is a flowchart explaining the initial arrangement process of a virtual machine. It is a block diagram of the information system which concerns on the Example of an initial arrangement | positioning process. It is explanatory drawing which shows the initial state of VM arrangement | positioning table. It is explanatory drawing which shows the total amount of work of each physical server. It is explanatory drawing which shows the update state of VM arrangement | positioning table. It is explanatory drawing of the workload of each physical server. It is explanatory drawing of a VM rearrangement table. It is explanatory drawing of the workload of each physical server. It is explanatory drawing of the final state of VM arrangement | positioning table. It is explanatory drawing of the update state of VM management table. It is a flowchart explaining the rearrangement process of a virtual machine. It is explanatory drawing of the update state of VM management table. It is explanatory drawing of a VM arrangement | positioning table. It is explanatory drawing of the workload of each physical server. It is explanatory drawing of a VM rearrangement table. It is explanatory drawing of the workload of each physical server. It is explanatory drawing of the final state of VM arrangement | positioning table. It is explanatory drawing of the update state of VM management table. It is a flowchart explaining the arrangement | positioning execution process of a virtual machine.

Hereinafter, embodiments for carrying out the present invention will be described in detail with reference to the accompanying drawings.
[overall structure]
FIG. 1 shows an example of an information system in the present embodiment.

  A plurality of physical servers 100 (physical devices) to be managed, an operation management server 200 (virtual machine management device) that manages the physical servers 100, and a plurality of operation management terminals 300 that are operated by an operator are a network such as the Internet. 400 to each other. The physical server 100 constructs at least one virtual machine (VM: Virtual Machine) 120 as a virtual computer using a hypervisor (program) 110 that implements a virtualization technology. The operation management server 200 is a general-purpose computer, for example, and stores various tables for managing the physical server 100 to be managed, specifically, the virtual machine 120 built on the physical server 100. It has a device 210. Note that the physical server 100 and the operation management terminal 300 are not limited to two as illustrated, but may be three or more according to the scale of the information system.

  The storage device 210 stores an operation work amount table 212 shown in FIG. 2, an item work amount table 214 shown in FIG. 3, a VM management table 216 shown in FIG. 4, and a work result table 218 shown in FIG.

  The operation work amount table 212 holds a record in which a VM name for specifying the virtual machine 120 and an estimated work amount per day required for operation management of the virtual machine 120 are associated with each other. Here, the concept of “points” with the minimum unit of work performed in the operation management of the virtual machine 120 as the expected work amount is introduced for the purpose of uniformly expressing the required time, labor, etc. (Same below). The item work amount table 214 is a table corresponding to each record of the operation work amount table 212, and specifies work items for specifying work for operation management of the virtual machine 120 and predictions required for work specified by the work items. A record in which work amount is associated with is retained. The VM management table 216 is a table that holds the management state of the virtual machine 120. The VM name, the physical server name for specifying the placement destination of the virtual machine 120, the operation type of the virtual machine 120, A record in which a work amount per predetermined period (for example, one day) performed is associated is held. Here, as the operation type, for example, “active system” indicating that the system is in operation, “standby system” indicating that the system is in standby, and the like can be used. The work result table 218 is a table that holds work results related to the virtual machine 120 that is in operation, a work item that specifies work for operation management of the virtual machine 120, and a predetermined period for the work specified by the work item. Keeps a record that is associated with the number of operations. Here, for example, 7 days can be used as the predetermined period.

  The physical server 100 embodies the change detection unit 130 by executing a virtual machine placement program for the physical server. When the change detection unit 130 detects that the operation type of the virtual machine 120 has been changed, the change detection unit 130 notifies the operation management server 200 of the VM name for identifying the virtual machine 120 whose operation type has been changed, The change information including the operation type is transmitted.

  The operation management server 200 embodies a work amount update unit 220, a work amount setting unit 230, an arrangement plan unit 240, and an arrangement execution unit 250 by executing a virtual machine arrangement program for the operation management server. The work amount update unit 220 updates the work amount in the VM management table 216 and the work number in the work result table 218 when the operation management work is performed. The work amount setting unit 230 creates the operation work amount table 212 and the item work amount table 214 in response to an instruction from the worker. The arrangement planning unit 240 plans the arrangement of the virtual machine 120 with respect to the physical server 100 in response to an instruction from the worker or when the operation type of the virtual machine 120 is changed. The placement execution unit 250 requests the hypervisor 110 of the physical server 100 to place the virtual machine 120 in response to a notification from the placement planning unit 240.

  The operation management terminal 300 embodies the work detection unit 310 by executing a virtual machine arrangement program for the operation management terminal. When the operation detection unit 310 detects that the operation management operation has been performed, the operation detection unit 310 specifies, for the operation management server 200, the VM name for specifying the virtual machine 120 that has performed the operation management operation, and the operation. Work information including a work item for sending.

Note that the virtual machine arrangement program is installed from a computer-readable recording medium such as a CD-ROM or a DVD-ROM into storage such as a hard disk of the physical server 100, the operation management server 200, and the operation management terminal 300.
[Work volume update processing]
FIG. 6 shows a work amount update process executed by the work amount update unit 220 of the operation management server 200 when the work information arrives at the operation management server 200 from the work detection unit 310 of the operation management terminal 300. When the work detection unit 310 is not mounted on the operation management terminal 300, the work amount update unit 220 performs, for example, an update process of the work amount when triggered by input of work information by the worker. You can do it.

  In step 1 (abbreviated as “S1” in the figure, the same applies hereinafter), the work amount update unit 220 updates the work amount of the record specified by the VM name of the work information in the VM management table 216 of the storage device 210. To do.

  In step 2, the work amount update unit 220 updates the work number of work specified by the work item of the work information in the work result table 218 of the virtual machine 120 specified by the VM name of the work information.

According to this work amount update processing, when an operation management work is performed, the VM management table 216 and the work performance table 218 of the storage device 210 are updated. For this reason, the VM management table 216 and the work performance table 218 can be held in the latest state.
[Work volume setting process]
FIG. 7 shows a work amount setting process executed by the work amount setting unit 230 of the operation management server 200 in response to an instruction from the worker.

  In step 11, the work amount setting unit 230 displays a screen for selecting a work amount setting method on a display device such as a display. Here, “manual input” that directly inputs the work amount, “use of the procedure manual” that uses the work procedure manual, and “use of actual results” that uses the work procedure manual and work results are adopted as the method of setting the work amount. The On the screen for selecting the work amount setting method, the VM name for specifying the virtual machine 120, the work procedure manual to be used, the work results, various information for specifying the work instruction, etc. are also specified. Is done. Note that it is desirable to adopt a GUI (Graphical User Interface) for the purpose of facilitating selection and input for the screen for selecting the setting method of the work amount (the same applies hereinafter).

  In step 12, the work amount setting unit 230 performs a branching process according to the selected setting method. In other words, if the setting method is “manual input”, the work amount setting unit 230 advances the process to step 13, and if the setting method is “use procedure”, the process advances to step 14, and the definition method is “ If it is “actual use”, the process proceeds to step 16.

In step 13, the work amount setting unit 230 displays a screen for causing the display device to input each item of the operation work amount table 212 and the item work amount table 214.
In step 14, the work amount setting unit 230 executes a subroutine for calculating an expected work amount of each work item in the item work amount table 214.

  In step 15, the work amount setting unit 230 displays a screen for causing the display device to input an expected work amount per day required for operation management of the virtual machine 120 (an estimated work amount in the operation work amount table 212). . That is, in the operation management of the virtual machine 120, not all the work items that are the calculation target in step 14 are necessarily performed. For this reason, the setting accuracy of the expected work amount is improved by intervening the judgment of the worker or the like and narrowing down the work actually performed.

In step 16, the work amount setting unit 230 executes a subroutine for calculating an expected work amount of each work item in the item work amount table 214.
In step 17, the work amount setting unit 230 refers to the work performance table 218 of the storage device 210 and calculates the number of work per day for each work item.

  In step 18, the work amount setting unit 230 calculates an expected work amount per day required for operation management of the virtual machine 120 based on the predicted work amount of each work item and the number of work times per day. An example of a method for calculating the expected work amount per day will be described in detail in an embodiment described later.

  In step 19, the work amount setting unit 230 generates an operation work amount table 212 and an item work amount table 214 based on each input or calculated information, and stores the operation work amount table 212 and the item work amount table 214 as a storage device. 210.

FIG. 8 shows a subroutine related to a work amount setting process executed by the work amount setting unit 230.
In step 21, the work amount setting unit 230 extracts work items from the work procedure manual. The work procedure manual is a document that defines a work procedure in operation management, and is, for example, a document that describes the following contents.

Work item A: Sending periodic report email of operation status (1) Log in by entering the user name and password to the operation management terminal.
(2) Start the mail tool from the “Regular Report Mail” icon.

(3) On the mail creation screen, confirm that the destination is “operation manager” and the subject is “periodic report (today's date)”.
(4) Attach a file with today's date in the operation status folder to the mail.

(5) Check the operation ledger.
(6) When there is an individual instruction in the operation ledger, the designated file is attached to the mail.
(7) Confirm the destination.

(8) Confirm the subject.
(9) Check the attached file.
(10) Check whether there is an individual instruction, and if there is an individual instruction, check whether a file corresponding to the instruction is attached.

(11) Send mail.
(12) Log out.
As a method of extracting work items from work procedure manuals, the above-mentioned work procedure manuals are disassembled for each item, key words and punctuation marks are used in document analysis, and the number of referenced figures is counted. The method to do is applicable.

In step 22, the work amount setting unit 230 calculates the work amount of each work item. Here, one work unit is defined as one point.
In step 23, the work amount setting unit 230 corrects the work amount according to the importance of the work. That is, a worker who operates and manages the virtual machine 120 tends to feel that the amount of work of important work such as email transmission of important information to the customer, release of the HDD area, and change of online time is high. For this reason, the work amount is corrected according to the importance of the work so that the work amount considering the operator's sense can be used. A method for correcting the work amount according to the importance of the work will be described together with the correction of the work amount according to the work content.

  In step 24, the work amount setting unit 230 corrects the work amount according to the work content. That is, the worker who operates and manages the virtual machine 120 tends to feel that the amount of work is high in accordance with the work importance such as the number of characters input at the time of work. For this reason, as shown in the following example, the work amount is corrected in accordance with the work content so that the work amount considering the operator's sense can be used.

Specifically, using the predefined definition “Work volume = (Basic work volume, Correction amount according to the importance of the work, Correction amount according to the work content)”, depending on the importance and content of the work Make corrections. Here, for the correction of the work amount, for example, a known method such as adding the correction amount to the basic work amount or multiplying the correction amount may be appropriately applied.
<Example of work amount correction according to work content>
Login with user name AAA and password BBB (number of information 2, number of characters 6)
Login to server CCC with user name AAA and password BBB (number of information 3, number of characters 9)
Enter the command "format a:" (number of information 1, number of characters 9)
In such work, for example, the correction amount is changed discretely or continuously according to at least one of the number of information and the number of characters.

In step 25, the work amount setting unit 230 determines whether or not a work instruction is specified. Here, the work instruction sheet is a document that instructs how long the operation management work of the virtual machine 120 is to be performed. For example, the work instruction sheet is a document that describes the following contents. Then, the work amount setting unit 230 advances the process to step 26 if the work instruction is specified (Yes), and advances the process to step 27 if the work instruction is not specified.
<Example of work instruction for virtual machine 1>
1. A month B day C time D minute work N is executed E time F until F minutes work X is executed in case of failure. A month B day G hour H minute work M executed until I hour J minutes work Y in case of failure. A month B day K hours L minutes work L is executed up to M hours N minutes If work fails, work Z is executed In step 26, not all work items extracted from the work procedure manual are executed. The work amount setting unit 230 analyzes the work instruction and narrows down work items.

  In step 27, the work amount setting unit 230 displays a screen for narrowing down work items extracted from the work procedure manual on the display device. Note that the work amount setting unit 230 may employ all work items extracted from the work procedure manual without displaying a screen for narrowing down work items.

  In step 28, the work amount setting unit 230 uses, for example, an expression “expected work amount per day = Σ (work amount of each work item)” per day required for operation management of the virtual machine 120. Calculate the expected amount of work.

  According to this work amount setting process, the expected work per day of the virtual machine 120 to be managed by using at least the work procedure manual out of the manual procedure by the worker and the work procedure manual and work instruction manual. The amount and the expected amount of work for each work item are set. Therefore, when adding the virtual machine 120 to be managed, the work amount required for operation management of the virtual machine 120 is predicted by referring to the operation work amount table 212 and the item work amount table 214 of the storage device 210. Can do.

  Here, for the purpose of facilitating the understanding of the work amount setting process, an explanation will be given of an example assuming a specific example of the process for obtaining the expected work amount per day of the virtual machine 120 to be managed. To do. As a premise of the embodiment, it is assumed that the item work amount table 214 shown in FIG. 3 and the work result table 218 shown in FIG.

The work amount setting unit 230 refers to the work performance table 218, calculates the number of work per day for each work item, and creates a table 500 as shown in FIG. Next, for each work item, the work amount setting unit 230 multiplies the number of operations per day in the table 500 by the expected work amount in the item work amount table 214 to create a table 510 as shown in FIG. Thereafter, the work amount setting unit 230 integrates the item work amounts of the table 510 and creates an operation work amount table 212 as shown in FIG.
[Virtual machine placement planning]
1. Initial Arrangement Processing FIG. 11 shows an operation when an operator selects (designates) a virtual machine to start operation from at least one virtual machine registered in the operation work amount table 212 of the storage device 210. The virtual machine initial placement processing executed by the placement planning unit 240 of the management server 200 is shown. Here, for the purpose of facilitating understanding of the initial arrangement process of the virtual machine, an example assuming a specific example will be described as necessary.

  As a premise of a specific example, as shown in FIG. 12, virtual machines Vm-A and Vm-B are in physical server Srv1, virtual machines Vm-C and Vm-D are in physical server Srv2, and physical server Srv3. It is assumed that virtual machines Vm-E and Vm-F are arranged in FIG. The VM name of the virtual machine 120 that starts operation is “Vm-XX”, and the storage device 210 stores the operation work amount table 212 shown in FIG. 2 and the VM management table 216 shown in FIG. It shall be.

  In step 31, the arrangement planning unit 240 refers to the operation work amount table 212 of the storage device 210, and the expected work amount per day required for operation management of the virtual machine 120 (Vm-XX) to start operation (57 points). ) To get.

  In step 32, the arrangement planning unit 240 refers to the VM management table 216 of the storage device 210 and acquires the work amount (actual work amount) of the operating virtual machine 120 whose operation type is “active”.

  In step 33, the arrangement planning unit 240 creates a VM arrangement table 520 for allocating the virtual machine 120 on the physical server 100, as shown in FIG. 13, based on the predicted work amount and the actual work amount. The VM placement table 520 holds a record in which a VM name, a physical server name for specifying the placement destination of the virtual machine 120, and a work amount required for operation management of the virtual machine 120 are associated with each other. Here, since the placement destination of the virtual machine Vm-XX to start operation has not been determined, for example, the placement destination of the virtual machine Vm-XX is left blank.

In step 34, the arrangement planning unit 240 refers to the VM arrangement table 520 and calculates the total work amount in each physical server 100 as shown in FIG.
In step 35, the placement planning unit 240 updates the VM placement table 520 as shown in FIG. 15 so that the virtual machine 120 to start operation is placed on the physical server 100 (Svr1) with the smallest total work amount. To do.

  In step 36, the placement planning unit 240 refers to the VM placement table 520 and calculates the total work amount in each physical server 100 and the difference between the total work amounts between the physical servers 100 as shown in FIG. To do.

  In step 37, the arrangement planning unit 240 creates a VM relocation table 530 that defines the virtual machines 120 to be allocated to each physical server 100, as shown in FIG. That is, the arrangement planning unit 240 arranges the virtual machines 120 in order from the virtual machine 120 with the largest work amount on the physical server 100 with the smallest work amount. In the embodiment, it is as follows.

(1) The arrangement planning unit 240 arranges the virtual machine Vm-XX having the largest work amount on the physical server Srv1.
(2) The arrangement planning unit 240 arranges the virtual machine Vm-E having the next largest work amount on the physical server Srv2.

  (3) The arrangement planning unit 240 arranges the virtual machine Vm-C having the next largest work amount on the physical server Srv3. Here, since the work amounts of the virtual machines Vm-A and Vm-C are the same, it is assumed that the virtual machine Vm-C is selected according to a predetermined rule.

(4) The placement planning unit 240 places the virtual machine Vm-A with the next largest work amount on the physical server Srv3 with the smallest work amount at the present time.
(5) The arrangement planning unit 240 arranges the virtual machine Vm-D having the next largest work amount on the physical server Srv2 having the smallest work amount at the present time.

(6) The arrangement planning unit 240 arranges the virtual machine Vm-B having the next largest work amount on the physical server Srv1 having the smallest work amount at the present time.
(7) The arrangement planning unit 240 arranges the last remaining virtual machine Vm-F on the route server Srv1 with the smallest sum of work amounts at the present time.

  In step 38, the placement planning unit 240 refers to the VM relocation table 530, and calculates the total work amount in each physical server 100 and the difference between the total work amounts between the physical servers 100 as shown in FIG. calculate.

  In step 39, the arrangement planning unit 240 executes the relocation of the virtual machine 120 based on whether or not the difference in total work amount in each physical server 100 becomes small based on the calculation results of step 36 and step 38. It is determined whether or not to do. If the placement planning unit 240 determines to relocate the virtual machine 120, the process proceeds to step 40 (Yes), whereas if it is determined not to relocate the virtual machine 120, the process proceeds to step 41. (No). In the embodiment, since the difference in the total work amount in each physical server 100 is reduced by executing the rearrangement of the virtual machine 120, the arrangement planning unit 240 determines to execute the rearrangement.

In step 40, the arrangement planning unit 240 refers to the VM relocation table 530 and updates the VM arrangement table 520 as shown in FIG.
In step 41, the arrangement planning unit 240 notifies the arrangement execution unit 250 that the relocation of the virtual machine 120 should be executed in accordance with the VM arrangement table 520.

  In step 42, the arrangement planning unit 240 refers to the VM arrangement table 520 and updates the VM management table 216 of the storage device 210 as shown in FIG. In the embodiment, the work amount of the virtual machine Vm-XX that has started operation is assumed to be zero.

According to the virtual machine initial arrangement processing, when the operator specifies the virtual machine 120 to start operation, the operation work amount table 212 of the storage device 210 is referred to, and one day required for operation management of the virtual machine 120 The expected amount of work is acquired. Further, the VM management table 216 of the storage device 210 is referred to, and the actual work amount of the operating virtual machine 120 is acquired. Further, when the virtual machine 120 to start operation is arranged on the physical server 100 with the smallest total work amount of the operating virtual machine 120, the difference in the total work amount between the physical servers 100 (first difference) Is calculated. Next, when the virtual machines 120 are sequentially arranged in order from the virtual machine 120 with the largest work amount to the physical server 100 with the smallest total work amount, the difference in the total work amount between the physical servers 100 (second Difference) is calculated. Then, the arrangement execution unit 250 is notified that the relocation of the virtual machine 120 should be executed in accordance with the arrangement plan with the smaller difference between the first difference and the second difference.
2. FIG. 21 shows a process of relocation of the virtual machine when the change information arrives at the operation management server 200 from the change detection unit 130 of the physical server 100 or when the change information is input by the operator. The relocation process of the virtual machine which the arrangement plan part 240 performs is shown. Here, as with the initial arrangement process of the virtual machine, for the purpose of facilitating the understanding of the rearrangement process, an example assuming a specific example will be described as necessary. In the embodiment, it is assumed that the virtual machine Vm-C of the physical server Srv3 is changed from the active system to the standby system in the information system specified by the VM management table 216 shown in FIG.

  In step 51, the arrangement planning unit 240 changes the operation type of the virtual machine 120 (Vm-C) specified by the VM name of the change information in the VM management table 216 of the storage device 210 as shown in FIG. Update to the information operation type (standby).

  In step 52, the placement planning unit 240 refers to the VM management table 216 of the storage device 210, and as shown in FIG. 23, the VM name and physical server of the operating virtual machine 120 whose operation type is “active” A VM arrangement table 520 in which names and workloads are extracted is created.

  In step 53, the arrangement planning unit 240 refers to the VM arrangement table 520 and calculates the total work amount in each physical server 100 and the difference between the total work amounts between the physical servers 100 as shown in FIG. To do.

  In step 54, the arrangement planning unit 240 creates a VM relocation table 530 that defines the virtual machines 120 to be allocated to each physical server 100, as shown in FIG. For the method of creating the VM relocation table 530, see the description of step 37 in FIG.

  In step 55, the placement planning unit 240 refers to the VM relocation table 530, and calculates the total work amount in each physical server 100 and the difference between the total work amounts between the physical servers 100 as shown in FIG. calculate.

  In step 56, the arrangement planning unit 240 executes the relocation of the virtual machine 120 through whether or not the difference in the total work amount in each physical server 100 becomes small based on the calculation results of step 53 and step 55. It is determined whether or not to do. If the placement planning unit 240 determines to relocate the virtual machine 120, the process proceeds to step 57 (Yes), whereas if it is determined not to relocate the virtual machine 120, the process proceeds to step 58. (No). In the embodiment, since the difference in the total work amount in each physical server 100 is reduced by executing the rearrangement of the virtual machine 120, the arrangement planning unit 240 determines to execute the rearrangement.

In step 57, the arrangement planning unit 240 refers to the VM relocation table 530 and updates the VM arrangement table 520 as shown in FIG.
In step 58, the arrangement planning unit 240 notifies the arrangement execution unit 250 that the relocation of the virtual machine 120 should be executed according to the VM arrangement table 520.

In step 59, the arrangement planning unit 240 refers to the VM arrangement table 520 and updates the VM management table 216 of the storage device 210 as shown in FIG.
According to the virtual machine relocation processing, when the operation type of the virtual machine 120 is changed in the physical server 100, the difference in the total work amount between the physical servers 100 when the operation type of the virtual machine 120 is changed. (First difference) is calculated. Further, when the virtual machines 120 are sequentially arranged on the physical server 100 with the smallest total work amount in order from the virtual machine 120 with the largest work amount, the difference in the total work amount between the physical servers 100 (second difference). ) Is calculated. Then, the arrangement execution unit 250 is notified that the relocation of the virtual machine 120 should be executed in accordance with the arrangement plan with the smaller difference between the first difference and the second difference.

In other words, in the virtual machine placement planning process, the placement of the virtual machines 120 placed on each physical server 100 is reduced so that the difference in the total amount of work required for operation management of the virtual machines 120 placed on each physical server 100 is reduced. Planning is done.
[Virtual Machine Placement Execution Process]
FIG. 29 shows the virtual machine placement execution process executed by the placement execution unit 250 of the operation management server 200 when the placement planning unit 240 notifies that the virtual machine 120 should be rearranged. .

  In step 61, the placement execution unit 250 requests the hypervisor 110 of each physical server 100 to relocate the virtual machine 120 specified by the VM name in the VM placement table 520.

  According to the virtual machine arrangement execution processing, when the arrangement planning unit 240 notifies that the reallocation is to be executed, the virtual machine is informed to the hypervisor 110 of each physical server 100 in accordance with the VM arrangement table 520. 120 relocations are requested. In each physical server 100, the virtual machine 120 is rearranged using the function of the hypervisor 110.

Therefore, the operation of the virtual machine 120 in the plurality of physical servers 100 can be leveled.
Regarding the above embodiment, the following additional notes are disclosed.

To (Supplementary Note 1) computer, with reference to the amount of work information necessary for management of the stored in the storage device a virtual device, when generating the placement plan information of the virtual device to be arranged in a plurality of physical devices, said plurality of Control to reduce the difference in the total amount of work required for operation management of virtual devices calculated for each physical device, and arrange virtual devices according to the virtual device arrangement plan information for the plurality of physical devices A virtual device placement program for executing the processing requested by the client.

  (Additional remark 2) When the said computer produces | generates the arrangement plan information of the said virtual apparatus, it arrange | positions a virtual apparatus sequentially to the physical apparatus with the smallest total of work amount in an order from the virtual apparatus with the said large work amount. The virtual device arrangement program according to Supplementary Note 1, wherein

  (Supplementary note 3) The virtual device arrangement program according to supplementary note 1 or supplementary note 2, wherein the work amount is expressed by a point where a minimum unit of work performed in operation management of the virtual device is 1.

  (Supplementary note 4) The virtual device arrangement program according to supplementary note 3, wherein the point is corrected according to at least one of the importance and the content of the work.

  (Supplementary note 5) The virtual computer according to any one of supplementary notes 1 to 4, wherein the computer generates arrangement plan information of the virtual device when a virtual device to start operation is designated. Device placement program.

  (Additional remark 6) At least the said work procedure document is analyzed to the said computer among the work procedure document which prescribed | regulated the work procedure in the operation management of the said virtual apparatus, and the work results of the virtual apparatus in operation, and the said operation is started. The virtual device arrangement program according to appendix 5, further comprising executing a process of calculating a work amount of the virtual device.

  (Supplementary note 7) Any one of Supplementary notes 1 to 4, wherein the computer generates the placement plan information of the virtual device when the operation type of the virtual device arranged in the physical device is changed. The virtual device arrangement program according to one.

(Supplementary Note 8) computer, by referring to the amount of work information necessary for management of the stored in the storage device a virtual device, when generating the placement plan information of the virtual device to be arranged in a plurality of physical devices, said plurality of Control to reduce the difference in the total amount of work required for operation management of virtual devices calculated for each physical device, and arrange virtual devices according to the virtual device arrangement plan information for the plurality of physical devices A virtual device arrangement method for executing processing, which is requested to the user.

(Supplementary Note 9) Work required for operation management of a virtual device calculated for each of a plurality of physical devices by referring to the storage device storing work amount information required for operation management of the virtual device and the work amount information of the storage device A placement planning unit that generates placement plan information for virtual devices to be placed on the plurality of physical devices so that a difference in total amount of the plurality of physical devices is reduced, and the plurality of physical devices according to the placement plan information for the virtual devices. And a placement execution unit that requests placement of the virtual device.

DESCRIPTION OF SYMBOLS 100 Physical server 110 Hypervisor 120 Virtual machine 200 Operation management server (computer)
210 Storage device 212 Operation work amount table 214 Item work amount table 216 VM management table 218 Work result table 230 Work amount setting unit 240 Arrangement planning unit 250 Arrangement execution unit

Claims (5)

On the computer,
A virtual that is calculated for each of the plurality of physical devices when generating the placement plan information of the virtual devices to be arranged on the plurality of physical devices with reference to the work amount information required for operation management of the virtual devices stored in the storage device Control to reduce the difference in the total amount of work required for device operation management,
Requesting the plurality of physical devices to perform virtual device placement according to the virtual device placement plan information;
Virtual device placement program for executing processing.   The computer, when generating the placement plan information of the virtual device, sequentially arranges virtual devices in order from the virtual device with the largest work amount to the physical device with the smallest total work amount. Item 8. The virtual device arrangement program according to Item 1.   The virtual device arrangement program according to claim 1 or 2, wherein the work amount is expressed by a point where a minimum unit of work performed in operation management of the virtual device is 1.   The virtual device arrangement program according to claim 3, wherein the point is corrected according to at least one of the importance and the content of the work. Computer
A virtual that is calculated for each of the plurality of physical devices when generating the placement plan information of the virtual devices to be arranged on the plurality of physical devices with reference to the work amount information required for operation management of the virtual devices stored in the storage device Control to reduce the difference in the total amount of work required for device operation management,
Requesting the plurality of physical devices to perform virtual device placement according to the virtual device placement plan information;
A virtual device arrangement method for executing processing.

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