JP2000231454A - Operating system - Google Patents

Abstract

PROBLEM TO BE SOLVED: To develop the maximum file performance of an information processing system. SOLUTION: A partition map means 24 abstracts logical partition information to be used by an application program 1 in performing access to hard disks(HD) 5-10 for enabling the change of map with physical partition information. A load information obtaining means 23 records performance information by HD and physical partition units through a file input and output interface 26, and a load analyzing means 22 analyzes this performance information, and when detects an overload state, prepares the constitution change pattern of the physical partition. A physical partition changing means 25 operates the constitution change of the physical partition, and transfers the constitution change pattern of the physical partition to a partition map means 24. An executing controlling means 21 controls the execution of each means.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an operating system having a file load distribution mechanism for optimizing hard disk access performance and increasing efficiency.

[0002]

2. Description of the Related Art Conventionally, an operating system is constructed by applying, for example, an application program for controlling a database. In the application program for performing the database control, when access to a specific hard disk is biased, the file performance of the information processing system is not sufficiently exhibited. After changing the hard disk partition configuration, you must rebuild the database and change the configuration. In addition, in order to reconstruct an optimal database, experience and knowledge by a skilled person are required.

[0003] As a conventional example similar to the present invention in the technical field, Japanese Patent Application Laid-Open No. 5-108273, which relates to a technique for distributing the load for each information processing system connected on a network, discloses an operation method in which an operator is based on disk free area information. Japanese Patent Application Laid-Open No. H8-63376, in which a partition restructuring instruction is manually issued to enable load distribution, and a Japanese Patent Application Laid-Open No. H08-264, in which load distribution is enabled by automatically rebuilding partitions based on disk free area information. 8-314
773 and the like.

[0004]

However, the above prior art has the following problems. First, when access to a specific hard disk by an application program is uneven, the physical file performance of the information processing system is not sufficiently exhibited. In order to solve the problem, the operator must reconfigure the data structure used by the application program after changing the partition configuration on the hard disk, and change the configuration information of the application program.

[0005] The reason is that when the partition configuration on the hard disk is changed, all data created on the partition is cleared, and the partition information used by the application program becomes invalid.

[0006] Second, it is not easy to equalize the frequency of access to the hard disk to maximize the file performance of the information processing system.

[0007] The reason is that the experience and knowledge of a skilled technician are required to find a bottleneck that causes the file performance not to be sufficiently exhibited and to optimize the arrangement of the database used in the application program. Because there is.

An object of the present invention is to provide an operating system having a file load distribution mechanism, optimizing hard disk access performance and increasing efficiency.

[0009]

In order to achieve the above object, an operating system according to the present invention comprises: a partition map means for enabling use without changing logical partition information even when physical partition information is changed; A load information acquisition unit that measures and records the performance information of the hard disk in units of hard disks and physical partitions, and analyzes the load state from the performance information recorded by the load information acquisition unit. In this case, a load analysis unit that creates a configuration change pattern in units of physical partitions, a physical partition change unit that transfers configuration change information to the partition map unit after relocating the physical partitions on the hard disk according to the configuration change pattern, And execution control means for performing load balancing file to activate the partition changing means is characterized by comprising a.

The partition map means may change the map of the physical partition information so that the logical partition information can be used without change even when the physical partition information is changed.

Further, the physical partition information indicates logical partition information used when an application program in the information processing system accesses the hard disk, and physical mounting information of a partition arranged on the hard disk. It is good to

The performance information recorded by the load information acquisition means is executed for all the hard disks installed in the information processing system, and the analysis of the load state from the performance information is performed on a physical partition basis, a hard disk basis and a hard disk basis. May be performed in units of disk controllers that perform the above control.

[0013] The load distribution in the execution control means is performed after execution of preprocessing necessary for changing the physical partition when an overload state is detected, and the load distribution in the execution control means is performed in accordance with an instruction from an operator. It is preferable to execute the pre-processing necessary for measuring information and the load analysis unit after activating the load analysis unit and checking the load status of the file.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, an embodiment of an operating system according to the present invention will be described in detail with reference to the accompanying drawings. Referring to FIGS. 1-8, one embodiment of the operating system of the present invention is shown.

FIG. 1 is a block diagram showing an example of a system to which an embodiment of the operating system according to the present invention is applied. The application system of the present embodiment includes an application program 1, an operating system 2, disk controllers 3, 4, hard disks 5, 6, 7,.
8, 9, 10, a console 11, and a backup device 12.

The operating system 2 applied as one component to the above-described system includes an execution control unit 21
, A load analysis unit 22, a load information acquisition unit 23, a partition map unit 24, a physical partition change unit 25, and a file input / output interface 26.

Further, one disk controller 3 comprises:
The hard disks 5, 6, and 7 are controlled, and the other disk controller 4 controls the hard disks 8, 9, and 10.

On the hard disk 5, a physical partition 51 and a physical partition 52 are created. A physical partition 61 is created on the hard disk 6. On the hard disk 7, a physical partition 71 and a physical partition 72 are created. A physical partition 81 is created on the hard disk 8. The hard disk 9 has a physical partition 9
1 has been created. Further, a physical partition 101 is created on the hard disk 10.

The execution control means 21 constituting the operation system 2 starts the application program 1 in response to an operator's instruction from the console 11 and then starts the load analysis means 22 to start measuring the file load.

Next, after the analysis of the file load measurement result by the load analysis means 22 is completed, if an overload state is detected, the operator is prompted to select a backup device 12 necessary for changing the physical partition. When a backup device having an appropriate capacity is selected, the application program 1 is stopped, and then the physical partition changing unit 25 is started.

The load analysis unit 22 includes a load information acquisition unit 2
After starting 3 and acquiring the performance information of the file,
Analyzes performance information for each disk controller, each hard disk, and each physical partition. If an overload state is detected in this analysis, a configuration change pattern is created for each physical partition.

The load information obtaining means 23 monitors the performance information for each hard disk and physical partition for a certain period of time via the file input / output interface 26, records it, and delivers the performance information to the load analysis means 22.

The physical partition changing means 25 reconstructs a physical partition according to the configuration change pattern for each physical partition created by the load analyzing means 22. At this time, the backup device 1 set by the execution control means 21 as a temporary work area if necessary.
Use 2. Next, after the rebuilding of the physical partition is completed, the configuration information of the physical partition is delivered to the partition map unit 24.

The partition map means 24 makes it unnecessary to change the logical partition information even when the physical partition is changed. The procedure is as follows when the application program 1 accesses the hard disk
By mapping the abstracted logical partition information to be used to the actual physical partition information.

The partition map means 24 abstracts the logical partition information used by the application program 1 to access the hard disk, and converts the logical partition information into physical partition information indicating physical mounting information of the partitions arranged on the hard disk. Map can be changed. Therefore, even when the physical partition information is changed, the logical partition information can be used from the application program 1 without any change.

The load information acquisition means 23 can record performance information by measuring the load status for all hard disks and physical partitions implemented in the information processing system for a certain period of time.

The load analysis unit 22 includes a load information acquisition unit 2
The load state analysis is performed in units of physical partitions, hard disks, and disk controllers for controlling the hard disks based on the performance information recorded in step 3, and if an overload state is detected, a configuration change pattern in units of physical partitions is detected. Can be created.

The physical partition changing means 25 can notify the change information to the partition map means 24 after rearranging the physical partitions on the hard disk according to the configuration change pattern created by the load analyzing means 22.

The execution control means 21 includes an operator (11)
, The load analysis unit 22 and the load information acquisition unit 23 are activated to analyze the load of the file. When overload information is detected, a backup device temporarily used to change the physical partition is identified. Prompt for choice. Next, when the backup device is selected correctly, the application program 1 being executed is terminated, and then the physical partition changing means 25 is started. As a result, the physical partition can be changed without adversely affecting the system.

Next, the overall operation of this embodiment will be described in detail with reference to the flowcharts of FIGS. 2, 3, and 4 and FIGS.

The execution control means 21 starts the application program 1 with file operation according to an operator's instruction from the console 11 (step S1). Next, the operator is prompted to set a file load monitoring time (step S2). When the setting of the file load monitoring time is completed, the load analysis unit 22 is started (Step S).
3).

The load analysis means 22 is a load information acquisition means 2
3 (step S11), and waits until the load monitoring time set by the execution control means 21 has elapsed (step S12).

The load information obtaining means 23 performs, via the file input / output interface 26, the performance information and the physical partitions 51, 52, 61, 71, 72 of the hard disks 5 to 10 connected to the hard disk controller 3 and the hard disk controller 4. 8
The performance information items 1, 91 and 101 are collected.

When the load monitoring time has expired, the load analysis means 22 stops the load information acquisition means 23, edits the collected performance information, and collects the performance total information (D1 in FIG. 5) for each hard disk and the physical partition. Performance total information in units (D in FIG. 6)
2) is created (step S13). Next, performance information is analyzed to check whether or not there is an overloaded hard disk (step S14).
If there is an overloaded hard disk, a change candidate is selected for each physical partition on the hard disk (step S15).

In this embodiment, the hard disk 6 and the hard disk 7 are overloaded with reference to the performance total information of each hard disk (D1 in FIG. 5) and the performance total information of each physical partition (D2 in FIG. 6). Thus, the physical partition 61 and the physical partition 72 are selected as change targets. The physical partition in which the main body of the operating system 2 is stored needs to be excluded from the change target.
When the physical partition to be changed is determined, the load status is checked for each disk controller, and a hard disk under the disk controller having a performance margin is selected as a destination candidate of the physical partition (step S16). In this embodiment, the disk controller 4 is selected. When the destination disk controller is determined, a configuration change pattern of the physical partition (M2 in FIG. 8) is created, and control is returned to the execution control means 21 (step S17).

The execution control unit 21 checks whether or not the configuration change pattern (M2 in FIG. 8) of the physical partition has been created by the load analysis unit 22 (step S4). In this check, if a configuration change pattern has been created,
The backup device 12 used as temporary storage is
The operator makes a selection via the console 11 (step S5). Here, as the backup device 12, a hard disk connected to a remote server on a network, a tape device locally connected, or the like can be selected. When the selection of the valid backup device 12 is completed, the application program 1 accompanying the file operation being started is stopped (step S6). Next, the control is transferred to the physical partition changing unit 25.

The physical partition changing means 25 first obtains the physical partition configuration change pattern (M2 in FIG. 8) created by the load analyzing means 22 (step S).
21). Next, when the physical partition is changed, it is determined whether it is necessary to back up the physical partition of the destination hard disk to temporary storage (step S2).
2). In this determination, if backup is necessary, the physical partition is backed up to the backup device 12, and then the physical partition is released (step S23). Next, the physical partition is moved to the destination hard disk (step S24). If there is a backed up physical partition, the destination is searched for and restored from the physical partition configuration change pattern (M2 in FIG. 8) (step S25). Next, it is checked whether or not all the physical partition changes have been completed (step S26), and if completed, the control is transferred to the partition map means 24. If not completed, the process is repeated from step S22.

In the present embodiment, in the first loop, the physical partition 81 is backed up to the backup device 12, then released and the physical partition 61 is moved to the hard disk 8. Next, the backup device 12
To restore the physical partition 81 to the hard disk 6. In the second loop, the physical partition 72 is moved to the hard disk 9.

As described above, the present invention relates to an operating system having a file load distribution mechanism, and in particular, has a file load distribution mechanism for optimizing hard disk access performance without changing an application program. According to the above-described embodiment having this configuration, the partition created on the hard disk is automatically changed to the optimum configuration without changing the configuration information of the application program that performs data operations on the hard disk. As a result, the maximum file performance of the information processing system can be obtained.

The above embodiment is an example of a preferred embodiment of the present invention. However, it is not limited to this.
Various modifications can be made without departing from the spirit of the present invention.

[0041]

As is apparent from the above description, the operating system of the present invention measures and records the performance information of the hard disk for each hard disk and for each physical partition, and analyzes the load state from the recorded performance information. If an overload condition is detected, a configuration change pattern is created for each physical partition to distribute the file load, and even if the physical partition information is changed, it can be used without changing the logical partition information. And

First, by making it possible to change the abstracted logical partition information used when the application program accesses the hard disk and the map of the physical partition information indicating the physical mounting information of the partition, Even when the physical partition information is changed, it is not necessary to change the logical partition information, and all data on the physical partition is retained. For this reason, the database on the hard disk can be rearranged without performing a special operation such as a change in the configuration of an application program for performing the database operation and a reconstruction of the database.

Second, after the performance information of the file device is measured, a rebuilding pattern is automatically created in units of physical partitions on the hard disk, and the configuration of the file is maximized by utilizing the performance of the file device. Restructuring can be performed. For this reason, the load distribution of the file device can be realized by an easy operation without the experience and knowledge of a skilled engineer.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of an embodiment of an operating system of the present invention.

FIG. 2 is a flowchart showing the operation of the execution control means.

FIG. 3 is a flowchart showing an operation of a load analysis unit.

FIG. 4 is a flowchart showing the operation of a physical partition changing unit.

FIG. 5 is an example of hard disk performance total information;

FIG. 6 is an example of performance total information of a physical partition;

FIG. 7 is an example of partition map information before a change.

FIG. 8 is an example of changed partition map information.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Application program 2 Operating system 3, 4 Disk controller 5, 6, 7, 8, 9, 10 Hard disk 11 Console 12 Backup device 21 Execution control means 22 Load analysis means 23 Load information acquisition means 24 Partition map means 25 Physical partition change means 26 File input / output interface 51, 52, 61, 71, 72, 81, 91, 101
Physical partition D1 Total performance information of hard disk D1 Total performance information of physical partition M1 Partition map information before change M2 Partition map information after change / configuration change pattern of physical partition

Claims (7)

[Claims] 1. A partition map means which can be used without changing logical partition information even when physical partition information is changed, and a load for measuring and recording hard disk performance information in units of hard disks and physical partitions. An information acquisition unit, a load analysis unit that analyzes a load state from the performance information recorded by the load information acquisition unit, and creates a configuration change pattern in units of physical partitions when an overload state is detected. Physical partition changing means for transferring the configuration change information to the partition map means after relocating the physical partition on the hard disk according to the configuration change pattern; and executing the physical partition changing means to perform file load distribution. Operating system comprising: the control means. 2. The partition map means according to claim 1, wherein the map of the physical partition information is changeable, so that the logical partition information can be used without change even when the physical partition information is changed. The operating system according to claim 1, wherein 3. The physical partition information indicates logical partition information used when an application program in an information processing system accesses a hard disk, and physical mounting information of a partition arranged on the hard disk. The operating system according to claim 1 or 2, wherein 4. The operating system according to claim 1, wherein the performance information recorded by the load information acquisition unit is executed for all hard disks installed in the information processing system. system. 5. The apparatus according to claim 1, wherein the analysis of the load state from the performance information is performed in units of physical partitions, in units of hard disks, and in units of disk controllers for controlling hard disks. operating system. 6. The load distribution in the execution control means,
The operating system according to any one of claims 1 to 5, wherein when an overload state is detected, pre-processing necessary for changing a physical partition is executed after execution. 7. The load distribution in the execution control means,
7. The operating system according to claim 6, wherein a pre-process necessary for measuring the load information in accordance with an instruction from an operator is executed, and the pre-processing is executed after activating the load analysis unit and checking a load state of the file. system.