JPS6367617A - Battery support system at service interruption - Google Patents

Abstract

PURPOSE:To perform the service interruption processing in response to the estmated discharging time point by using a means which calculates the present dischargeable time from the past service interruption (discharge)/charge histories. CONSTITUTION:The means 11 and 12 estimate the subsequent discharging time points from the past service interruption/recovery histories at the present service interruption mode and inform these estimated time points to software. The software receives the action securing times through both informing means 11 and 12 and performs the service interruption processing in response it said action securing times. The means 11 and 12 contain a table 1 which stores the past service interruption/recovery time and a charge/discharge characteristic table for batteries or a calculation formula 2, and a current consumption capacity table 3 for devices forming a computer system. The the discharging time is estimated based on these tables 1-3 or a calculation formula.

Description

[Detailed Description of the Invention] [Required] To solve the problem that in a battery support method during a power outage in a computer system, if a power outage occurs continuously, the system lifespan of 3W supported by the battery cannot be guaranteed. By providing a means for calculating the current available discharge time from past power outage (discharge)/charging history, power outage processing corresponding to the predicted discharge time is executed. .

[Industrial application field]

The present invention relates to a panteri support system during a power outage, and in particular,
The present invention relates to a method of calculating and predicting the current dischargeable time based on past power outage/charging history, and executing power outage processing based on the predicted time.

Generally, in data processing in a computer system, there is important data that must not be lost once it has been imported from the outside, even if it is due to a power outage. Panteli support during power outages is utilized for such systems.

However, as the computer system becomes larger, the number of input/output devices increases, and the system battery support also becomes larger, which becomes uneconomical.

On the other hand, with the recent trend of online computer systems, there is an increasing demand for improved reliability of computer systems, and battery support during power outages is an essential condition.

In addition, due to the recent rise in labor costs, automatic operation is also required for computer systems (automatic power on at a predetermined time, Q system startup, automatic disconnection at the end of a job, etc.)
There has been a need for an effective system battery support system during a power outage that is suitable for larger computer systems and automatic operation.

[Prior art and problems to be solved by the invention] Fig. 3 is a diagram explaining a conventional battery support system during a power outage, in which (a) shows the memory battery system, and (b) shows the system battery system. The method is shown.

Table 1 Table 1 shows the characteristics of these battery support methods by control method.

Therefore, with the memory battery method, there is a problem that data will be lost if there is a power outage for more than a certain period of time, and even with the system battery method, even if it is guaranteed according to the specifications for the first power outage, after the second power outage In the event of a power outage, the battery support time at the time of the power outage will be uncertain,
The current situation is that this is not guaranteed.

Therefore, there is a problem in that the power outage processing program must always take into consideration the fact that pantry support during power outages is insufficient.

In particular, in the system battery method shown in Figure (b) above, which ensures continuity of data processing by saving important data to the file storage device (DASD) la every time a power outage occurs, the file storage Bag W (DASD) l
evacuation to a, it is always necessary to guarantee operation for a certain period of time, and in the current situation where it is not possible to know in advance whether or not the battery support time is guaranteed, there is a problem that the reliability of the system decreases. there were.

SUMMARY OF THE INVENTION In view of the above conventional drawbacks, it is an object of the present invention to provide a battery support system that predicts the battery support time during a power outage and executes power outage processing appropriate for the guaranteed time.

[Means for solving problems]

FIG. 1 is a diagram schematically showing a configuration example of a system for predicting guaranteed battery support time according to the present invention.

In the present invention, (1) A battery support method for a computer system during a power outage, which is a means for predicting the subsequent discharge time based on past power outage/power restoration history during the current power outage and notifying the software. The software is configured such that the software that receives the guaranteed operation time through the notification means LL12 executes a power outage process that matches the guaranteed operation time.

(2) A table that stores past power outage/power restoration times as means 11.12 for predicting future discharge times and notifying the software based on the past power outage/power restoration history during the current power outage. , a battery charging/discharging characteristic table or calculation formula 〇, and a current consumption capacity table ■ for each device that constitutes the computer system, and then using the tables or calculation formulas in the above ■ to ■. It is configured to predict the discharge time based on the above.

[Effect]

That is, according to the present invention, in order to solve the problem that in the puff battery support method during power outages in a computer system, if power outages occur continuously, the system protection time supported by the battery cannot be guaranteed, the system protection time supported by the battery cannot be guaranteed. (・
By providing a means to calculate the current available discharge time from the discharge/charging history, power outage processing corresponding to the predicted discharge time is executed, so current cannot be supplied while the system is operating. becomes nothing (no longer becomes),
It is possible to turn off the power to the hardware in a stable state, which has the effect of improving system reliability.

〔Example〕

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 2 is a flowchart showing the battery support prediction operation according to the present invention, which includes step 11 of calculating a predicted battery support time, notification of a power outage to software, and step 12 of notifying the battery support guaranteed time. are the means necessary to carry out the present invention. still,
The same reference numerals indicate the same objects throughout the figures.

Hereinafter, the method for predicting the Panteri support guaranteed time according to the present invention will be explained with reference to FIGS. 1 and 2 while referring to FIG. 3(b).

Step 11: First, the central processing unit (CPU) lb connects the uninterruptible power supply (UPC), which supplies power to the computer system, via the service processor (SVP) 2.
) When a commercial power outage for 3 is recognized, the power outage/power outage is detected based on the hardware internal clock 11a provided in the central processing unit (CPU) lb of the computer system.
Collect power recovery time data■, for example, main memory (M
S) Accumulates in lc.

Next, a battery charge/discharge characteristic table or calculation formula (2) is created and stored in a specific area of the main memory (MS) lc.

Further, the current consumption capacity (2) of each device constituting the computer system is stored in a specific area on the main memory (MS) lc by the external manual input mechanism 11b shown in the figure.

The above-mentioned accumulated data of past power outage/power restoration times stored on the main storage device (MS) LC, the battery charge/discharge characteristic table or calculation formula ■, and each device making up the computer system The central processing unit (CPU) lb calculates the dischargeable time of the battery at the time of the current power outage based on the current consumption capacity (1) and (1).

Step 12: The central processing unit (CPU) lb executes the interruption of power supply from the power supply device, that is, the power outage, and the guaranteed operation time (discharging possible time) of the battery at that point calculated in step 11 above. software that is running.

Step 13 The software that receives the notification in step 12 determines whether there is enough time to process the power outage, and if it determines that there is enough time,
The process moves to step 14, but if it is found that there is not enough time to process the power outage, the process jumps to step 16.

Step 14.15: Save the data required at the time of power restoration to the file storage device (DASD) la, and record this fact in the file storage device (DASD) la.

Step 16: Record in the file storage device (DASD) la that the data required at the time of power restoration could not be saved to the file storage device (DASD) la.

Step 17: Stop all input/output operations and wait for the power supply from the uninterruptible power supply (UPC) 3 to be disconnected.

Step 20: When the power supply from the uninterruptible power supply (UPC) 3 is recognized, the software system automatically starts up, and then the file is stored to record the state in which the power supply was cut off last time. Device (DASD)
If the judgment is made by looking at the specific area of la and it is recognized that the data has been saved, the process moves to step 21. However, if it is recognized that the data saving time is insufficient and the data has not yet been saved, the process proceeds to step 22. fly to

Step 21: File storage device (DASD) la
The saved data is reproduced on the main memory (MS) LC, and the data processing before the power outage is continued.

Step 22: Display on the display 1d, for example, that the battery discharge time was not sufficient to save data, and follow the operator's instructions.

Among the above processes, the processes from the detection of a power outage to steps 11 to 17 are performed in such a way that they can be performed even in any momentary power outage.
It is necessary to secure it with an uninterruptible power supply (UPC) 3.

As described above, in the battery support system during power outages, the present invention calculates the battery support time during the current power outage based on the past power outage/power restoration history, and predicts the power outage time. The feature is that the power outage process is executed in accordance with the battery guarantee time.

〔Effect of the invention〕

As explained above in detail, the battery support method during power outages of the present invention is such that, in the case of battery support methods during power outages in computer systems, if a power outage occurs continuously, the system protection time supported by the battery cannot be guaranteed. In order to solve this problem, by providing a means to calculate the current available discharge time from past power outage (discharge)/charging H history, power outage processing corresponding to the predicted discharge time can be executed. As a result, the current supply will not run out while the system is operating, and the hardware can be powered off in a stable state, which has the effect of improving the (δ reliability) of the system. .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram schematically showing a configuration example of a system for predicting guaranteed battery support time according to the present invention. FIG. 2 is a flowchart showing the battery support prediction operation according to the present invention. FIG. 3 is a diagram illustrating a conventional battery support system during a power outage. It is. In the drawing, 1a is a file storage device (DASD). 1b is a central processing unit (CPU). 1c is the main memory (MS), 3 is the uninterruptible power supply (
UPC). 11a is the hardware internal clock. 11b is a manual input mechanism from the outside. 11-17. and 20 to 22 are operation steps. ■～■ are various tables or calculation formulas. are shown respectively. ○ 66

Claims (2)

[Claims] (1) A battery support method for a computer system during a power outage, which includes means (11, 12) for predicting the subsequent discharge time and notifying the software based on past power outage/power restoration history during the current power outage. A battery support system at the time of a power outage, characterized in that the software that receives the guaranteed operation time by the notification means (11, 12) executes power outage processing that matches the guaranteed operation time. (2) As means (11, 12) for predicting the subsequent discharge time and notifying the software based on the past power outage/power restoration history at the time of the current power outage, past power outage/power restoration times are stored. table ([1]) and battery charge/discharge characteristics table or calculation formula ([2]
]), and a current consumption capacity table ([3]) for each device constituting the computer system, and calculate the above discharge based on the tables or calculation formulas in [1] to [3] above. The battery support system at the time of a power outage according to claim 1, characterized in that the time is predicted.