JPH09153000A - Parameter setting device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To calculate and set an optimum transfer rate and further set time intervals and time when the optimum transfer rate is calculated by holding parameters calculated by a parameter calculation part in a parameter information holding part. SOLUTION: A transfer rate part 102 monitors transfer rate, terminal by terminal. According to the state monitored by the transfer rate monitor part 102, a transfer rate calculation part 104 recalculates a new optimum transfer rate and when time intervals and time when a system is reconstituted are held in a system reconstitution interval holding part 108, they are compared with the value of the transfer rate as one of pieces of parameter information held previously in the system parameter holding part 101. When they are different, a parameter calculation part 105 recalculates parameters of the system needed to reconstitute the system and a parameter setting part 106 newly sets the parameters, so that the system is reconstituted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a parameter setting device for constructing a system in a system for delivering audio / video information and the like to terminal devices.

[0002]

2. Description of the Related Art In recent years, with the advance of image compression technology and high-speed digital network technology, opportunities for constructing various multimedia systems have increased. In order to construct a multimedia system by combining various devices, a general computer has a function of changing various system parameters and rebuilding the system according to various situations.

A conventional parameter setting device will be described below. FIG. 21 is a block diagram of a conventional parameter setting device. In the figure, reference numeral 2101 is a condition input unit for the user to input the conditions of the specifications required for the system. 2102
Is a parameter information holding unit that holds parameters for system construction that are set in advance in the system. A determination unit 2103 determines whether or not a parameter matching the condition input by the condition input unit 2101 exists in the parameter information holding unit 2102. 2
A parameter calculation unit 104 calculates a new parameter when the determination unit 2103 determines that the matching parameter does not exist in the parameter information holding unit 2102. Reference numeral 2105 is for setting a parameter that matches the specifications and configuration of the system calculated by the parameter calculation unit 2104, and constructs the system. Actually, in addition to this, various components such as a system configuration inspection unit that inspects the system configuration, such as a calculation information storage unit that stores information for calculating parameters, are required, but the main purpose of the present invention is to Omit it because it is not available

The operation of the conventional parameter setting device configured as described above will be described below. (1) The user inputs the conditions of the specifications required for the system from the condition input unit 2101. (2) In the determination unit 2103, the parameter information holding unit 210 stores information on parameters that match the conditions input in (1).
It is determined whether or not it is held at 2. (3) If the parameter information holding unit 2102 does not hold the matching parameter information in (2), the parameter calculating unit 2104 calculates the parameters that match the input conditions, and the parameter setting unit 2105 calculates the parameters. Set the parameters and build the system.

Such a configuration is disclosed in (Japanese Patent Application No. 7-1503).
90).

[0006]

However, in the above configuration, once the system is constructed, the system should be reconstructed unless the user intentionally inputs the condition even if the system parameters are not optimal. I couldn't. In addition, because there was no mechanism for determining whether the system parameters or the performance of the storage device can withstand the operation of the system during operation, the system could continue to operate with inefficient parameters, resulting in sufficient performance. There were cases where it could not be demonstrated. In addition, when the system is rebuilt, it is necessary to suspend the system, back up the data in the storage device, rebuild the system, and then restore the data in the storage device. In addition, when measuring the performance of the storage device of the system before operating the system, the performance was judged by a momentary value, so the average performance and the performance at singular points appearing at certain intervals are There was a problem that the correct decision could not be made without consideration.

In view of the above points, the first and second inventions of the present invention calculate and set an optimum transfer rate while monitoring the transfer rate of each terminal during the operation of the system, and a time interval for calculating the optimum transfer rate. An object of the present invention is to provide a parameter setting device capable of specifying the time and the time.

In view of the above points, the present inventions 3 and 4 aim to provide a block size changing device capable of changing the block size of a storage device and rebuilding the system without stopping the system. .

In view of the above points, the fifth and sixth aspects of the present invention calculate the optimum transfer rate and set it while monitoring the transfer rate of each terminal during the operation of the system, and the time interval for calculating the optimum transfer rate. A parameter setting device including a parameter setting device that can specify the time and time and a block size changing device that can reconfigure the system by changing the block size of the storage device without stopping the system The purpose is to do.

In view of the above points, the present inventions 7 and 8 provide a parameter calculating device for calculating a parameter in consideration of an average performance tendency of a storage device of a system, and for determining whether or not the system can be operated. The purpose is to provide.

In view of the above point, the ninth aspect of the present invention determines whether or not data transmission is completed for each terminal within a predetermined time interval during system operation, and if not completed, the system An object of the present invention is to provide a parameter setting device that calculates parameters and sets them in the system.

[0012]

According to a first aspect of the present invention, a parameter information holding unit for holding a parameter for system construction which is set in advance in a system, and a system to a terminal at a predetermined constant time interval. A transfer rate monitoring unit that monitors the transfer rate for each terminal based on the amount of data to be transmitted, a monitoring status holding unit that holds the monitoring status monitored by the transfer rate monitoring unit, and a monitoring status holding unit that holds the monitoring status. A transfer rate calculating unit that calculates an optimum transfer rate based on the monitoring status, a transfer rate calculated by the transfer rate calculating unit, and a transfer rate that is one of the parameter information held in the parameter information holding unit. Compare the values,
A parameter calculation unit that recalculates the parameters required to reconstruct the system if different, and set the parameters calculated by the parameter calculation unit in the system,
And a parameter setting unit that holds the set parameters in the parameter information holding unit.

A second aspect of the present invention is a rebuilding interval input section for designating a time interval and a time for rebuilding a system, and a rebuilding interval holding section for holding a time interval and a time input by the rebuilding interval input section. And a basic transfer rate calculation unit that calculates an optimal basic transfer rate according to the time interval and time held in the reconstruction interval holding unit instead of the basic transfer rate calculation unit. It is a parameter setting device of the first present invention.

According to a third aspect of the present invention, a storage device for storing system data in block units, a block size information holding unit for holding a block size of data stored in the storage device, and data storage in the storage device. Block position information holding unit that holds information about which data is stored in which block, and the block size information holding unit holds the data stored in the storage device at the transfer rate when transferring to the terminal. A determination unit that determines whether or not the information conforms, and when reading data from the storage device when the determination unit determines that the transfer rate does not conform to the information held by the block size information holding unit How many times to increase the block size held by the block size information holding unit according to the information of the block position information holding unit A block size calculation unit that calculates whether or not the block size matches the transmission rate, and a read data conversion unit that collectively reads blocks corresponding to the block size calculated by the block size calculation unit and converts them into one block. And a read data control unit for controlling whether to read the data directly from the storage device or to read the data through the read data conversion unit according to a result determined by the determination unit. It is a change device.

A fourth aspect of the present invention is a read data dividing section for dividing one block read by the read data converting section into a plurality of blocks, and a read data temporary storing section for temporarily storing the data divided by the read data dividing section. A storage unit and a read data control unit that controls whether the data is directly read from the storage device instead of the read data control unit or whether the data is read from the data temporary storage unit according to the result of determination by the determination unit A block size changing device according to a third aspect of the present invention.

A fifth aspect of the present invention is a parameter setting device including the parameter setting device according to the first aspect of the present invention and the parameter setting device including the block size conversion device according to the third aspect of the present invention.

A sixth aspect of the present invention is a parameter setting device including the parameter setting device according to the first present invention and the parameter setting device including the block size conversion device according to the fourth present invention.

According to a seventh aspect of the present invention, a storage device for storing system data, a performance measuring unit for measuring the performance of the storage device at predetermined time intervals, and a result measured by the performance measuring unit. Performance information history holding unit that holds the history information of, the history information analysis unit that analyzes a singular point that appears periodically from the information held in the performance information history holding unit, and the result analyzed by the history information analysis unit A performance information extraction unit that extracts performance information of the storage device based on the above, and a parameter calculation unit that calculates a parameter necessary for system construction based on the information extracted by the performance information extraction unit. Storage device performance determination and calculation device.

An eighth aspect of the present invention includes a history information analysis unit for analyzing singular points appearing irregularly, instead of the history information analysis unit,
A storage device performance determination and calculation device, comprising: a performance determination unit that determines whether or not the storage device can withstand operation of the system based on the information analyzed by the history information analysis unit.

A ninth aspect of the present invention is a parameter information holding unit that holds parameters for system construction set in advance in the system, and a predetermined fixed time when the system transfers data to a plurality of terminals. A transmission cycle determination unit that monitors whether or not the transmission of a predetermined amount of data has been completed within an interval, and the transmission cycle determination unit determines that the data transmission has been completed within a predetermined fixed time interval. If a delay time calculation unit that calculates the delay time when it is determined that there is not, using the delay time calculated by the delay time calculation unit and the parameter information held in the parameter information holding unit, a predetermined constant time A parameter calculation unit that recalculates parameters so that the data transmission is completed within the interval, and the parameters calculated by the parameter calculation unit are set in the system and set. Was a parameter setting apparatus characterized by comprising a parameter setting unit for holding said parameter information storage unit parameters.

According to the present invention, the transfer rate unit monitors the transfer rate for each terminal, and the transfer rate calculation unit recalculates a new optimum transfer rate based on the situation monitored by the transfer rate monitoring unit. If the system rebuilding interval holding unit holds the time interval or time to rebuild the system, the value of the transfer rate, which is one of the parameter information held in advance by the system, is stored at that time interval or time. If they are compared and different from each other, the parameter calculation unit recalculates the parameters of the system necessary for reconstructing the system and sets them in the system. Further, according to the present invention, when it is determined that the block size of the data of the storage device that stores the system data in block units does not match the transfer rate when transferring the data to the terminal, the block size The calculation unit calculates how many times the current block size should be expanded to obtain a suitable block size, or how many divisions should be made to obtain a compatible block size. When collectively reading and dividing the compatible block size, the divided data is temporarily stored in the read data temporary storage unit, and the read data control unit reads the data directly from the storage device or the read data conversion unit. Read through the temporary data storage unit or read from the temporary data storage unit based on the result of the determination unit. Look out the data control unit reads the data. Further, according to the present invention, with the above-described configuration, the performance measuring unit measures the performance of the storage device that stores the data at predetermined intervals, and the performance information history holding unit holds the history, and the history information analyzing unit. The singular points that appear periodically or the singular points that appear irregularly are analyzed from the stored history information, and the parameters necessary for system construction are calculated based on the information analyzed by the parameter calculation unit, or the performance judgment unit Is a storage device that can withstand the operation of the system. Further, according to the present invention, with the above-described configuration, the parameter information holding unit holds the parameters for system construction set in advance in the system, and is predetermined when the transmission cycle determination unit transfers data to a plurality of terminals. By monitoring whether or not the transmission of a predetermined amount of data has been completed within a certain time interval, the transmission cycle determination unit determines that the data transmission has not been completed within a predetermined certain time interval. In this case, the overdue time calculation unit calculates the overdue time,
The parameter calculation unit recalculates the parameters by using the calculated delay time and the parameter information stored in the parameter information storage unit so that the data transmission is completed within a predetermined fixed time interval, and a new system is created. The calculated parameter is set and held in the parameter information holding unit.

[0022]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing a first embodiment of the present invention. In the figure, 101 is a parameter information holding unit that holds parameters for system construction set in advance in the system, and 102 is for each terminal based on the amount of data transmitted by the system to the terminal at a predetermined fixed time interval. A transfer rate monitoring unit that monitors the transfer rate, 103 a monitoring status holding unit that holds the monitoring status monitored by the transfer rate monitoring unit 102, 107 a rebuilding interval input unit that specifies the time interval and time for rebuilding the system, 1
Reference numeral 08 is a rebuilding interval holding unit that holds the time interval and time input by the rebuilding interval input unit 107, and 104 is an optimum transfer rate calculated based on the monitoring status held by the monitoring status holding unit 103. Alternatively, the reconstruction interval holding unit 1
08, a transfer rate calculation unit that calculates the optimum basic transfer rate according to the time interval and time, and 105 represents the transfer rate calculated by the transfer rate calculation unit 104 and the parameter information stored in the parameter information storage unit 101. The parameter calculation unit 106 compares the values of one transfer rate and recalculates the parameters necessary to reconstruct the system if they are different.
5 is a parameter setting unit that sets the parameters calculated in 5 in the system and holds the set parameters in the parameter information holding unit 101.

The operation of the parameter setting device of the present embodiment configured as described above will be described below with reference to the flowchart of FIG. In FIG. 2, (1) In step S201, the transfer rate monitoring unit 1
02 is a predetermined fixed time interval, for example, 1000
Amount of data to send to the terminal in milliseconds, eg 1 megabp
Information such as s is monitored for each terminal, and the status is held by the monitoring status holding unit 103. FIG. 3 shows the monitoring status holding unit 1.
03 is an example of information held. (2) In step S202, the reconstruction interval holding unit 1
It is determined whether or not 08 holds data of a rebuilding interval and a rebuilding time, for example, data of an X minute interval, XX hour XX minute, X day later. (3) When data is held in the reconstruction interval holding unit 108 (for example, at time 11:00), the transfer rate calculation unit 10 is set in step S203 according to the data.
4 calculates the optimum basic transfer rate for the system.

FIG. 4 shows an example of data calculated by the transfer rate calculation unit from the information in the monitoring status storage unit 103. For example, at time 11:00, when the transfer rate calculation unit 104 determines that the transfer rate and the number of times of the data reproduced by the system from the data held by the monitoring status holding unit 103 are as shown in the example of FIG. The transfer rate calculation unit calculates the transfer rate of 6.0 Mbs, which has the largest number of reproductions, as the basic transfer rate. Then, the parameter calculation unit 105
Optimal system parameters for transferring 0 Mbps data, for example, values shown in FIG. 5 are calculated. (4) If no data is held in the rebuilding interval holding unit, in step S204, the data that has been replayed the most at the time determined by the system in the same manner as the transfer rate (3). Is calculated as a basic transfer rate, and a system parameter optimal for reproducing the data, for example, a value as shown in FIG. 5 is calculated. (5) In step S205, the value of the parameter calculated in (3) or (4) is compared with the value held in the parameter holding unit 101 in advance. (6) In step S205, if the value of the parameter calculated in (3) or (4) is different from the value held by the parameter holding unit 101 in advance, the newly calculated system parameter is set in step S206. The information set by the parameter setting unit 106 and subsequently updated by the parameter information holding unit 101 is updated. (End) As described above, according to the present embodiment, the transfer rate unit 102 monitors the transfer rate for each terminal, and the transfer rate calculation unit 10 is based on the situation monitored by the transfer rate monitoring unit 102.
4 newly recalculates the optimum transfer rate, and if the system rebuilding interval holding unit 108 holds the time interval or time for rebuilding the system, at that time interval or time,
The transfer rate value, which is one of the parameter information held in advance by the system parameter holding unit 101, is compared, and if different, the parameter calculation unit 105
The parameters of the system necessary for reconstructing the system are recalculated, the parameter setting unit 106 sets new parameters, and the system can be reconstructed.

In the present embodiment, an example of the data held by the monitoring unit status holding unit 103 is shown in FIG. 3, but the present invention is not limited to this, and the data of which transfer rate and how much is transferred. Any information can be used as long as it is clear. Further, although an example of the parameter value as shown in FIG. 5 is given, there may be more parameters in the actual system or there may be less parameters. Further, in the present embodiment, the highest transfer rate is calculated as the basic transfer rate according to the number of times of reproduction as shown in FIG. 4, but actually, the average value or weighted average of the whole is calculated. Good.

FIG. 6 is a block diagram showing the second embodiment of the present invention. In the figure, 601 is a storage device that stores system data in block units, 602 is a block size information holding unit that holds the block size of the data that the storage device 601 stores, and 603 is one that is used when storing data in the storage device 601. A block position information holding unit that holds information about which block the data is stored in, and 604 is a block size information holding unit 6 based on the transfer rate when the data stored in the storage device 601 is transferred to the terminal.
02 determines whether or not the information held by the determination unit 605 determines whether or not the determination unit 604 determines that the transfer rate does not match the information held by the block size information holding unit 602. A block size calculation unit that calculates how many times the block size held by the information holding unit 602 is multiplied to obtain a block size that conforms to the transfer rate. Reference numeral 606 denotes a block corresponding to the block size calculated by the block size calculation unit 605. A read data conversion unit for collectively reading and converting into one block,
Reference numeral 608 is a read data dividing unit that divides one block read by the read data converting unit 606 into a plurality of blocks, and 609 is a read data temporary storage unit that temporarily stores the data divided by the read data dividing unit 608.
Reference numeral 07 is a read data control unit that controls whether to read data directly from the storage device 601, whether to read through the read data conversion unit 607, or to read from the data temporary storage unit 609 according to the result determined by the determination unit 604. is there.

The operation of the block size changing device of the present embodiment configured as described above will be described below with reference to FIG.
This will be described with reference to the flowchart of. In FIG. 7, (1) in step S701, the block position information holding unit 602 holds information indicating which data was stored in which block when the storage device 601 stores the data in block units.

FIG. 8 shows an example of information held by the block position information holding unit.

In this example, for example, the data 1 is stored in the position from the xx block to the yy block, and the position information indicating where the data is stored can be known. (2) In step S702, the determination unit 604, when transferring the data stored in the storage device 601,
Whether or not the block size, which is one of the system parameters, conforms to the transfer rate at the time of transfer is determined according to the information held by the block size information holding unit 602.

FIG. 9 shows an example of a calculation formula for calculating the block size, and FIG. 10 shows an example of information held by the block size information holding unit.

The determination unit 604 calculates the block size size from the transfer rate and the time slot period, which are the system parameters shown in FIG. 10, using the calculation formula shown in FIG. It is determined whether or not they match. (3) In step S702, when the determination unit 604 determines that the block size is suitable for the transfer rate, the read data control unit 607 controls the read data control unit 607.
At, the data is directly read from the storage device 601. (4) If it is determined in step S702 that the block size of the determination unit 604 does not match the transfer rate, the transfer rate should be multiplied by the block size of the information held by the block size information holding unit 603 in step S703. It is calculated whether the block size is suitable for. (5) In step S703, if the block size is expanded to obtain a suitable block size, for example,
In the case of expanding the data twice, in step S708, the read data conversion unit 606 stores the data in accordance with the block position information held by the block position information holding unit 602 when reading the data from the storage device 601 as shown in FIG. The blocks at the designated positions are read out in batches of two and converted into one block. Then, the read data control unit 607 does not read the data directly from the storage device in step S707, but reads the data through the read data conversion unit in step S708. (6) In step S703, when the block size is divided to obtain a suitable block size, for example,
When the data is divided into ½ times, the read data conversion unit 606 reads out the data according to the original block size in step S705, and the data division unit 608 outputs 1
The data is divided into / 2 and read, and the divided and read data is stored in the data temporary storage unit 609.

Then, in step S707, the read data control unit holds the data divided into two blocks in the data temporary storage unit 608 and stored by the block position information holding unit 602 as shown in FIG. It is read from the temporary storage unit 608 according to the position information.
(End) As described above, according to the present embodiment, if the block size of the data stored in the storage device does not match the transfer rate, the block size is expanded to the compatible block size without stopping the system. It is possible to split or split.

In this embodiment, as an example of the information held by the block position information holding unit, the head block and the end block of the block position are described for each data as shown in FIG. Other formats may be used as long as it is known at which position is stored. Further, as the calculation formula for calculating the block size suitable for the transfer rate, the one shown in FIG. 9 is given. However, it may be a more complicated calculation formula depending on the system, or may be suitable for the system in advance for each transfer rate. Any value may be retained. Furthermore, as an example of expanding the block size, 2
As an example of doubling and dividing, ½ was assumed, but it is clear that the number is not limited to this value. Further, although an example of the parameter value as shown in FIG. 10 is given, there may be more parameters in the actual system or there may be less parameters.

FIG. 11 is a block diagram showing the third embodiment of the present invention. Reference numeral 1101 is a storage device that stores system data, 1102 is a performance measurement unit that measures the performance of the storage device 1101 at predetermined time intervals, and 1103 holds history information of the results measured by the performance measurement unit 1102. A performance information history holding unit, 1104 is a history information analysis unit that analyzes singular points that appear periodically from information held in the performance information history holding unit 1103 and analyzes singular points that appear irregularly, and 1105 is a history information analysis unit. 1
A performance information extraction unit that extracts performance information of the storage device 1101 based on the analysis result of 104, a parameter calculation unit that calculates a parameter necessary for system construction based on the information extracted by the performance information extraction unit 1105,
A performance determination unit 07 determines whether the storage device can withstand the operation of the system based on the information analyzed by the history information analysis unit 1104.

The operation of the storage device performance judgment and calculation device of the present embodiment configured as described above will be described below.

The operation of the storage device performance determination and calculation device in this embodiment will be described with reference to the flowchart of FIG.

In S1201, the performance measuring section 1102
13 continuously measures the performance of the storage device 1101 and stores the measurement result as shown in the example of FIG. 13 in the performance information history holding unit 1103 at regular intervals.

In S1202, the history information analysis unit 11
04 indicates whether, among the total time of the full seek time and the elevator seek time stored in the performance information history holding unit 1103, a measurement time significantly different from other measurement times appears periodically or appears irregularly. To analyze. FIG. 14 shows an example of the measurement results in the case where they appear regularly, and FIG. 15 shows an irregular example.

In S1203, the history information analysis unit 11
If it is analyzed that a periodic singular point appears in 04, S
In 1204, the performance information extraction unit 1105 removes the periodic singular point analyzed by the history information analysis unit 1104 from the measurement result stored in the performance information history storage unit 1103, and averages the full seek time and the elevator seek time. The values are extracted as full seek time and elevator seek time.

In S1203, the history information analysis unit 11
If it is analyzed in 04 that no periodic singular points appear, in S1205, if the history information analysis unit 1104 analyzes that singular points appear irregularly, S1206.
In the performance determination unit 1107, the history information analysis unit 11
If the difference between the values of irregularly appearing singular points analyzed in 04 and the remaining values obtained by removing the singular points from the measurement result stored in the performance information history holding unit 1103 is too large, the system The storage device 1101 determines that the storage device cannot withstand the above operation.

In step S1207, the performance information extraction unit 11
05 removes the periodic singular points analyzed by the history information analysis unit 1104 from the measurement results stored in the performance information history storage unit 1103, and obtains the respective average values of the full seek time and the elevator seek time as the full seek time and the elevator seek time. Extract as time.

In S1208, the parameter calculation unit 1
Reference numeral 106 calculates a parameter required for system construction based on the full seek time and the elevator seek time extracted by the performance information extraction unit 1105.

As described above, according to the present embodiment, the average performance of the storage devices of the system can be measured, and more accurate parameters can be calculated. Further, it becomes possible to automatically judge whether the storage device of the system can withstand a long-time operation.

FIG. 16 is a block diagram showing the fourth embodiment of the present invention. Reference numeral 1601 denotes a parameter information holding unit that holds parameters for system construction set in advance in the system, and 1602 is set within a predetermined time interval when the system transfers data to a plurality of terminals. The transmission cycle determination unit 1603 that monitors whether or not the transmission of the data of the specified data amount is completed,
A delay time calculation unit that calculates a delay time when the transmission cycle determination unit 1602 determines that the data transmission is not completed within a predetermined fixed time interval, and 1604 indicates a delay time calculated by the delay time calculation unit 1603. A parameter calculation unit that recalculates parameters using time and the parameter information stored in the parameter information storage unit 1601 so that data transmission is completed within a predetermined fixed time interval, and 1605 is a parameter calculation unit. A parameter setting unit that sets the parameters calculated by 1604 in the system and holds the set parameters in the parameter information holding unit 1601.

The operation of the parameter setting device of the present embodiment configured as above will be described below.

The operation of the parameter setting device in this embodiment will be described with reference to the flowchart of FIG.

In S1701, the transmission cycle determination unit 16
02 monitors the time it takes for the system to send out a defined amount of data when transferring data to multiple terminals. FIG. 18 is an example of the monitoring result. This time is compared with the value of the time slot period held in the parameter information holding unit 1601. FIG. 19 is an example of parameters held in the parameter information holding unit 1601.

The value of the monitoring result is compared with the value of the time slot period, and if the value of the monitoring result is larger, it is judged that the transmission of the data of the data amount defined within the fixed time interval is not completed.

In S1702, the transmission cycle determination unit 16
If 02 determines that the data transmission is not completed, in S1703, the delinquency time calculation unit 1603
The difference between the time slot period and the value of the monitoring result is calculated as the overdue time.

In S1704, the parameter calculation unit 1
20 uses the delay time calculated by the delay time calculation unit 1603 and the parameter information stored in the parameter information storage unit 1601 so that the data transmission is completed within a predetermined constant time interval in FIG. The number of supported terminals is recalculated using the formula shown, and parameters for completing the transmission of data to all terminals within a predetermined fixed time interval are calculated.

In S1705, the parameter setting unit 1
605 sets the parameters calculated by the parameter calculation unit 1604 in the system.

In S1706, the parameter setting unit 1
605 stores the parameters calculated by the parameter calculation unit 1604 in the parameter information storage unit 1601.

In this embodiment, the parameters are calculated by the formula shown in FIG. 20, but it is not always necessary to use this formula and there is a method of increasing or decreasing the time slot period,
The parameters may be calculated by other methods.

As described above, according to the present embodiment, it is judged whether or not the data transmission is completed for each terminal within a predetermined time interval during system operation, and it is not completed. In that case, recalculate the system parameters,
By automatically reconfiguring the system, it is possible to provide a more reliable system, which has a great practical effect.

[0056]

As described above, according to the first and second aspects of the present invention, it becomes possible to reset the system parameters in accordance with the transfer rate of the data transferred by the system while monitoring the transfer rate. , The system can be dynamically rebuilt. In addition, the interval for resetting and the time can be specified in advance, which makes it possible to construct an efficient system according to the operating state, which is a great practical effect.

According to the third and fourth aspects of the present invention, the block size of the system can be dynamically changed without temporarily stopping the system, and the system can be operated with a block size suitable for the transfer rate of data to be transferred at all times. Is possible. For this reason, backup and restoration of the storage device due to the change of the block size are not necessary at all, and its practical effect is great. Further, according to the present inventions 7 and 8, it is possible to measure the performance and characteristics of the storage device in a form close to the operating state. As a result, it becomes possible to calculate the parameters in consideration of the average performance of the storage device of the system and the characteristics peculiar to the storage device such as the temperature compensation time. Also,
It becomes possible to judge whether the storage device can withstand the operation of the system, and the practical effect is great.

According to the ninth aspect of the present invention, it is possible to catch a malfunction during operation, and it becomes possible to calculate more accurate parameters based on the values at that time, thereby providing a highly reliable system. It will be possible.

[Brief description of the drawings]

FIG. 1 is a block diagram of a parameter setting device according to an embodiment of the present invention.

FIG. 2 is a flowchart showing the operation of the parameter setting device in the embodiment.

FIG. 3 is a schematic diagram showing an example of data held by a monitoring status holding unit of the parameter setting device in the embodiment.

FIG. 4 is a schematic diagram showing an example of data calculated from information in a monitoring status holding unit 103 by a transfer rate calculation unit of the parameter setting device in the embodiment.

FIG. 5 is a schematic diagram showing an example of parameters held by the system of the parameter setting device in the embodiment.

FIG. 6 is a block diagram of a block size changing device according to an exemplary embodiment of the present invention.

FIG. 7 is a flowchart showing an operation of the block size changing device in the embodiment.

FIG. 8 is a schematic diagram showing an example of data held by a block position information holding unit of the block size changing device in the embodiment.

FIG. 9 is an example of a calculation formula when a block size calculation unit of the block size changing device in the embodiment example calculates a block size.

FIG. 10 is a schematic diagram showing an example of information held by a block size information holding unit of the block size changing device in the embodiment.

FIG. 11 is a block diagram of a storage device performance determination and calculation device according to a third exemplary embodiment of the present invention.

FIG. 12 is a flowchart showing the flow of processing in the third embodiment.

FIG. 13 is a schematic diagram showing an example of information held by a performance information history holding unit according to the third embodiment.

FIG. 14 is a schematic diagram showing an example in which information held by a performance information history holding unit in the third embodiment has a singular point periodically.

FIG. 15 is a schematic diagram showing an example in which information held by a performance information history holding unit in the third embodiment has irregular singular points.

FIG. 16 is a block diagram of a parameter setting device of a fourth exemplary embodiment of the present invention.

FIG. 17 is a flowchart showing the flow of processing in the same fourth embodiment.

FIG. 18 is a schematic diagram showing an example of information monitored by a transmission cycle determination unit in the fourth embodiment.

FIG. 19 is a schematic diagram showing an example of information held by a parameter information holding unit in the fourth exemplary embodiment.

FIG. 20 is an example of a calculation formula used by a parameter calculation unit in the fourth embodiment.

FIG. 21 is a diagram showing a conventional parameter setting device.

[Explanation of symbols]

 101 Parameter Information Holding Unit 102 Transfer Rate Monitoring Unit 103 Monitoring Status Holding Unit 104 Transfer Rate Calculation Unit 105 Parameter Calculation Unit 106 Parameter Setting Unit 107 Rebuilding Interval Input Unit 108 Rebuilding Interval Holding Unit

Claims (8)

[Claims] 1. A parameter information holding unit that holds a parameter for system construction set in advance in the system, and for each terminal based on the amount of data transmitted by the system to the terminal at a predetermined fixed time interval. A transfer rate monitoring unit that monitors the transfer rate, a monitoring status holding unit that holds the monitoring status monitored by the transfer rate monitoring unit, and an optimal transfer rate based on the monitoring status that the monitoring status holding unit holds. When the transfer rate calculation unit to calculate and the optimum transfer rate calculated by the transfer rate calculation unit and the value of the transfer rate, which is one of the parameter information held in the parameter information holding unit, are compared, and different from each other A parameter calculation unit that recalculates the parameters required to reconstruct the system, and the parameters calculated by the parameter calculation unit. Parameter setting apparatus characterized by setting, with a, a parameter setting unit which holds a parameter set in the parameter information storage portion. 2. A rebuilding interval input unit for designating a time interval and a time for rebuilding the system, a rebuilding interval holding unit for holding the time interval and time input by the rebuilding interval input unit, and the transfer. The basic transfer rate calculation unit that calculates an optimum basic transfer rate according to the time interval or time held in the reconstruction interval holding unit, instead of the rate calculation unit. Parameter setting device. 3. A storage device for storing system data in block units, a block size information holding unit for holding a block size of data stored in the storage device, and which data when the data is stored in the storage device. The block position information holding unit that holds information about which block is stored, and the information held by the block size information holding unit is suitable for the transfer rate when transferring the data stored in the storage device to the terminal. If a determination unit that determines whether or not, the determination unit determines that the transfer rate does not match the information held by the block size information holding unit,
A block size calculation unit that calculates how many times the block size held by the block size information holding unit is expanded to obtain a block size that matches the transfer rate; and a block position when reading data from the storage device. A read data conversion unit that collectively reads a block corresponding to the block size calculated by the block size calculation unit according to the information in the information holding unit and converts it into one block, or whether to read the data directly from the storage device. Or a read data control unit that controls whether to read through the read data conversion unit according to the result determined by the determination unit. 4. A read data dividing unit that divides one block read by the read data converting unit into a plurality of blocks, a read data temporary storage unit that temporarily stores the data divided by the read data dividing unit, and In place of the read data control unit, a read data control unit that controls whether to directly read the data from the storage device or to read from the data temporary storage unit according to the result of the determination made by the determination unit, The block size changing device according to claim 3, wherein: 5. The parameter setting device according to claim 1,
A parameter setting device comprising: the block size conversion device according to claim 3 or 4. 6. A storage device that stores system data, a performance measurement unit that measures the performance of the storage device at predetermined constant time intervals, and history information of the results measured by the performance measurement unit. A performance information history holding unit, a history information analysis unit that analyzes a singular point that appears periodically from the information held in the performance information history holding unit, and the storage based on a result analyzed by the history information analysis unit A storage device performance comprising: a performance information extraction unit that extracts device performance information; and a parameter calculation unit that calculates parameters necessary for system construction based on the information extracted by the performance information extraction unit. Judgment parameter calculation device. 7. A history information analysis unit that analyzes irregular points that appear irregularly instead of the history information analysis unit, and a storage device that can withstand operation of the system based on the information analyzed by the history information analysis unit. 7. The storage device performance determination parameter calculation device according to claim 6, further comprising: a performance determination unit that determines whether or not the storage device performance determination parameter calculation device is included. 8. A parameter information holding unit that holds a parameter for system construction set in advance in the system, and is set within a predetermined time interval when the system transfers data to a plurality of terminals. A transmission cycle determination unit that monitors whether or not the transmission of the data of the specified data amount is completed, and the transmission cycle determination unit determines that the data transmission is not completed within a predetermined fixed time interval. A delay time calculation unit that calculates a delay time, and the delay time calculated by the delay time calculation unit and the parameter information held in the parameter information holding unit are used to store data within a predetermined time interval. The parameter calculation unit that recalculates parameters so that the transmission is completed, and the parameters calculated by the parameter calculation unit are set in the system and the set parameters are set. Parameter setting apparatus characterized by comprising: a parameter setting unit for holding data in the parameter information storage unit.