JPH02270018A - Data back-up device - Google Patents

Abstract

PURPOSE:To easily obtain the necessary information by displaying the prescribed time required up to the end of a back-up state and the number of necessary storage media before the start of the back-up device and also displaying the necessary time to back up the back-up end degree and the remaining data during the back-up state. CONSTITUTION:A worker inputs the name of the data to be backed up, the storage density, and the number and sizes of storage media via a data input means 2 before a back-up state. Thus a data size check means 3 checks the size of the data to be backed up and a storage medium number check means 4 checks the number of necessary storage media. Then a necessary time check means 5 checks the time required up to the end of the back-up state and outputs the check result of a data output means 7 to a display device 11. A back-up means 8 performs a back-up operation during a back-up state and the means 3 checks the size of the remaining data to be backed up. An end degree check means 6 checks the end degree of the back-up operation, and the means 5 checks the time necessary for back-up of the remaining data and outputs it to the device 11. In such a way, the necessary information can be easily obtained.

Description

[Detailed Description of the Invention] [Field of Industrial Application] This invention checks the number of storage media and time required for backup before backing up, outputs the results to a display device, and displays the data when the work is completed during backup. The present invention relates to a data backup device that checks the degree of work and the time required to complete the work, and outputs the results to a display device.

[Conventional technology]

FIG. 2 is a block diagram illustrating backup using a conventional data backup device.

In the figure, Q-kon is a backup device, (2) is a data input means, (7) is a data output means, (8) is a backup means, (9) is a directly accessible auxiliary storage device, 00 is data to be backed up, αυ is a display device!
, 03 is a storage medium, and C13 is an auxiliary storage device that can only be accessed sequentially.

Next, the operation will be explained. The backup operator uses the data input means (2) to input the name of the data to be backed up, the storage density to be backed up, and the like.

The backup means (8) operates the auxiliary storage device [alpha] which can only be accessed sequentially, and writes the data q1 to be backed up on the directly accessible auxiliary storage device (9) to the storage medium Qa. Further, the data output means (7) outputs the contents input using the data input means (2) and the information at the time of backup to the display device (6).

[Problem to be solved by the invention]

Since conventional data backup devices are configured as described above, it is not possible to know the number of storage media required before backup. Additionally, there were other problems such as not knowing how much time it would take to complete the backup.

This invention was made to solve the above-mentioned problems. Before backup, the time required for backup and the number of required storage media are output on a display device, and even during backup, the progress of backup is displayed. To provide a data bank up device capable of displaying the degree of backup completion according to the data and the time required to back up data to be left.

[Means to solve the problem]

The data backup device according to the present invention includes a data input means for inputting the name of data to be backed up, storage density, and storage medium size, a data size checking means for checking the data size to be backed up, and a data size checking means for checking the time required to complete the backup. A time checking means, a storage medium number checking means for checking the number of storage media necessary for backup, a bank up means for performing backup, a completion degree checking means for checking the degree of bank up completion, and outputting the results of the check. It is equipped with data output means.

[Effect]

In the data backup device of the present invention, before backup, an operator uses the data input means to input the data name, storage density, and storage medium size to be backed up, and the data size checking means checks the data size to be backed up. The storage medium number checking means checks the number of required storage media, the required time checking means checks the time required to complete the backup, and the data outputting means outputs the checked results to the display device. During backup, the backup means performs the backup, the data size checking means checks the remaining data size to be backed up, the completion degree checking means checks the degree of backup completion, and the required time checking means backs up the remaining data. The required time is checked, and the data output means outputs the check result to the display device.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings. 1st
The figure is a block diagram illustrating backup using a data backup device. In the factor, (2>, (7
) to clear are the same as those shown in the conventional example of FIG. 2, so their explanation will be omitted. (1) is a data backup device, (
(March) is a data size investigation means, (4) is a storage medium number investigation means, (5) is a required time investigation means, and (June is a completion degree investigation means).

Next, the operation will be explained. The backup worker is
Before backing up, the name of the data to be backed up, the storage density at the time of backup: d (byte/1nch), and the storage medium size to be used: F (feet) are input using the data input means (2). Next, the data size checking means (3) checks the total data size: DA (byte) of the data to be backed up on the directly accessible auxiliary storage device (9). Next, the required time investigation means (5) calculates the total data size to be backed up: DA (byte), the backup speed: v (byte/5ec), and the CPU occupancy rate at that time:
Using CA (%), calculate the time required to complete backup: TA (sec) as TA = DVv x 10
Calculated from 0/cA. The storage medium number survey means (4) is
Storage medium size: F (feet) and storage density: d (byte/1) input using data input means (2)
From the total data size (in bytes) to be backed up, which was investigated using
F)) (where n is an integer rounded up to the nearest whole number). The data output means (7) calculates the backup time required for the calculated results: 'IA (sec)
and the required number of storage media: n (pieces) are output to the display device 0〃. If the backup means (8) starts the backup, the data size checking means (3) checks the remaining data size to be backed up: Dn (byte), and the completion degree checking means (6) checks the total data size to be backed up. = Dm (byte) and the remaining data size to be picked up: Dn (byte), the backup completion degree: E (%), E = (D people -
Calculated from DR)/DMX 100. In addition, the required time investigation means (5) calculates the remaining data size to be backed up as determined by the data size investigation means (3):
DR (byte) and CPU occupancy rate at that time: CB (%
), the time required to back up the remaining data: Tu (sec) is TR = Dn/v x
Calculated from loo /Cs.

Then, the data output means (7) outputs the calculated backup completion degree: E (%) and the time required to back up the remaining data: Tn (sec) to the display device αV. At regular intervals, use the data size investigation means (3), the required time investigation means (5), and the completion degree investigation means (6) to determine the degree of backup completion: E (%) and the amount necessary to back up the remaining data. Required time:
Tn (sec) is calculated and the result is output to the display device αV.

〔Effect of the invention〕

As described above, according to the present invention, the data pickup device outputs the time required to complete the backup and the required number of storage media to the display device before the start of the backup, and during the backup, the data Since the configuration is configured to output the backup rate and the time required to back up the remaining data to a display device, the operator can know the time required to complete the backup and the number of storage media required before starting the backup. Additionally, during the backup, it is possible to know the degree of backup completion and the time required to back up the remaining data.

[Brief explanation of drawings]

FIG. 1 is a block diagram illustrating backup using a data backup device according to an embodiment of the present invention;
FIG. 2 is a block diagram illustrating backup using a conventional data backup device. In the figure, (1) is a data backup device, (2)
is a data input means, (3) is a data size survey means, (
4) means to check the number of storage media, (in May) means to check the time required, (6) means to check the degree of completion, (7) to data output means, (8) to backup means, and (9) to direct access. An auxiliary storage device, 11l) is data to be backed up, 11l) is a display device, (6) is a storage medium, and α4 is an auxiliary storage device that can only be accessed sequentially. In addition, in the figures, the same reference numerals indicate the same or equivalent parts.

Claims (1)

[Claims] Backup is used when data stored in an auxiliary storage device that can be directly accessed to a storage medium such as a magnetic disk is written to a storage medium such as a magnetic tape on an auxiliary storage device that can only be accessed sequentially (hereinafter referred to as backup). a data input means for inputting the name of data to be backed up, storage density, etc.; a data size investigation means for inspecting the data size to be backed up; and a required time investigation means for inspecting the time required to complete the backup;
A storage medium number checking means for checking the number of storage media required for backup, a backup means for performing backup, a completion degree checking means for checking the degree of backup completion, and a data output means for outputting the checked results to a display device. A data backup device characterized by: