JP2638564B2 - Remote resume system - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a remote resume system, and in particular, saves the work state of a host computer at the end of work or at the time of interruption in a file, and reads the information of the file by the host computer after work transfer. The present invention relates to a remote resume system for resuming work from the end of work or the point of interruption of work.

[0002]

2. Description of the Related Art As a conventional resume method, in the case of a single host computer, the work state of the host computer immediately before power-off is stored in a memory such as a nonvolatile random access memory (RAM) or a file. It is stored so as to reproduce the work state immediately before the power is turned off when the power is turned on again (for example, see JP-A-5-2500).
No. 61).

[0003] Further, as a conventional resuming method when the working host computer has to be changed,
A file in which the work status of the host computer at the end of work or at the time of interruption is saved in a file, and the work status is saved from the host computer that worked before after logging in to another host computer as the migration destination In some cases, the tasks are manually activated one by one on the basis of the contents thereof, thereby reproducing the work state of the work host computer at the end of the work before the transfer or at the time of interruption.

[0004]

However, when the host computer has to be migrated during the operation, the former conventional resume system using the single host computer cannot cope with it, and the latter conventional system cannot be dealt with. Then
To resume work from the suspended state on the host computer before the migration on the destination host computer, you must remember the tasks that were running when the work was suspended, and These tasks must be started manually one by one, and there is a problem that the work cannot be smoothly shifted.

Further, in the conventional method, there is also a problem that the screen image displayed on the display of the host computer before the transfer of the work cannot be transferred to the host computer after the transfer of the work.

[0006] The present invention has been made in view of the above points,
The screen data of the working host computer is used as the work history, which is stored in a file along with the status of the tasks running on the working host computer, and the work is transferred from the working host computer to another host computer. In doing so, the information of the above file is read by the host computer logged in for the work transfer, so that the system state at the time of interruption of the work on the host computer before the work transfer is reproduced immediately after login, and it is called redo work An object of the present invention is to provide a remote resume system capable of eliminating useless work.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, according to the present invention, of a plurality of host computers constituting a network capable of transmitting and receiving data to and from each other, the work is performed during the work of a first host computer. In the remote resume method when the operation is suspended and the operation is transferred to the second host computer, the first host computer
History storage means for storing the screen data displayed on the display and the state of the task being executed in a first history storage file; and a user account of a user who owns the screen data stored by the history storage means. ,
History screen user management means for managing the update date and time of the first history storage file.

Further, the second host computer in the present invention transmits a user account inquiry request to another host computer constituting the network, and responds to the user account information transmitted by the history screen user management means. Transmitting / receiving means for receiving the history storage file update date / time information, and comparing the user logged in to the second host computer with the user account information obtained by the transmitting / receiving means, and the host computer name or host computer having the same user account If the user account matching means for obtaining the location and the user account matching means are
The latest update date and time is checked from the history save file update date and time information obtained by the transmission / reception means, and the latest history collation means for obtaining the host computer name or host computer location having the latest update history and the latest history collation means have been verified. Auto-mounting means that is activated upon the start of the first history storage file and mounts the first history storage file in the file system as a second history storage file, and a history storage file that reads out screen data and task status information from the second history storage file An access unit, a task execution unit that starts the same task from the status information of the task read by the history storage file access unit, and a screen data read by the history storage file access unit after the task is started by the task execution unit. Display that shows the same screen on that display It is obtained by a structure having a Lee display means.

[0009]

According to the present invention, the first host computer, whose operation is interrupted, saves the screen data displayed on the display and the status of the task being executed in the first history storage file and stores the screen data. The second host computer that manages the user account of the owner and the update date and time of the first history storage file and shifts the work can check the user account information of the user received from the first host computer. In this case, the host computer name or the location of the host computer having the latest update history is obtained from the received history storage file update date and time information, and the first history storage file is mounted on the file system as the second history storage file.

[0010] Thereafter, the second host computer is connected to the second host computer.
Screen data and task status information are read from the history storage file, and the screen is displayed on the display after the task is started.
When it is necessary to transfer from the host computer to the second host computer, the work screen of the first host computer before the transfer can be displayed on the second host computer after the transfer, The task state can also be transferred to the second host computer after the transfer.

[0011]

Next, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows a system configuration diagram of an embodiment of a remote resume system according to the present invention. The present embodiment is an example of a multi-host system having host computers (hereinafter, also referred to as “hosts”) 1 and 2.

The hosts 1 and 2 are first and second host computers independent of each other in the local area network, and can exchange data by communication. Further, in the present embodiment, the host 1
The host 2 performs an operation according to the flowchart shown in FIG. The host 1 has a file system and a display 3, and the host 2 similarly has a file system and a display 4.

Next, the operation of this embodiment shown in FIG. 1 will be described with reference to FIG.
This will be described with reference to FIG. Now, a case where the operation on the host 1 is interrupted and the operation is switched to the host 2 will be described. The history storage means 7 on the host 1 monitors whether a user has logged in to the host 1 (step 21 in FIG. 2A), and is activated when the user logs in, and is displayed on the display 3. The state of the screen data and the state of the task started by the user who owns the screen and the state of the task started by the root are stored in the history storage file 5 at regular time intervals (step 22). ). This is because it is not possible to predict when a work interruption will occur.

Subsequently, the history screen user management means 8 on the host 1 manages the user account of the user who owns the screen data displayed on the display 3 and manages the update date and time of the history storage file 5 ( Step 23 in FIG. 2A).

Thereafter, when the user switches work from the host 1 to the host 2, the user account checking means 9 on the host 2 transmits the data on the host 1 via the data transmitting / receiving means 10 when the user logs in to the host 2. An inquiry about the user account is made to the history screen user management means 8 (step 41 in FIG. 3). At this time, when there are a plurality of hosts other than the host 1 in the local area network, the user account checking means 9 of the host 2 inquires all the hosts about the user account.

History screen user management means 8 on host 1
Upon receiving the inquiry request for the user account information and the history storage file update date / time information from the host 2 (Step 31 in FIG. 2B), the host 2 sends the user account information and the update date / time information of the history storage file 5 to the host 2 (Step 32 in FIG. 2B).

User account matching means 9 of host 2
Receives the user account information and the history storage file update date and time information transmitted from the host 1 via the data transmission / reception means 10 (step 42 in FIG. 3), and checks the user account (step 43 in FIG. 3). It is determined whether the user accounts match (step 44).

When the user account matching means 9 obtains a matching host name or host location result from the user account matching means 9, the latest history matching means 11 of the host 2 uses the matching host name or host location result as a history storage file. Are compared with each other to obtain the host name or host location having the latest update record of the history storage file (step 45 in FIG. 3). Here, it is assumed that the host having the history storage file with the latest history update date and time is the host 1.

Subsequently, the auto mounting means 1 of the host 2
2 automatically mounts the history storage file 5 of the host 1 at the latest history update date and time obtained by the latest history collation means 11 as a history storage file 6 in a file system on the host 2 (step 46 in FIG. 3). ).

Next, the history storage file access means 13 on the host 2 converts the history storage file 6 mounted by the auto-mount means 12 from the screen data of the host 1 before the work transfer, which was displayed on the display 3 on the host 1. And the data of the activated task state are read (step 47 in FIG. 3).

Then, the task executing means 14 on the host 2
Starts the same task on the host 2 after the work transfer from the data of the start task state of the host 1 before the work transfer read from the history save file 6 by the history storage file access means 13 (step 48 in FIG. 3). .

After the execution of the activation task, the display display means 15 on the host 2 displays the screen data of the host 2 before the work shift read out from the history storage file 6 by the history storage file access means 13 on the host 2. 4 (step 49 in FIG. 3). Therefore,
The same screen as the screen displayed on the display 3 of the host 1 before the work transfer is displayed on the display 4 on the host 2 after the work transfer.

When the screen data is displayed on the display 4, the auto mount means 12 on the host 2 releases the mounting of the history storage file 6 (step 50 in FIG. 3). This is because the display of the screen data eliminates the need for mounting, and the mounting imposes a load on the network and must be released as soon as possible.

As described above, according to the present embodiment, even if the host 1 has to be changed to the host 2 in the course of the work, the work on the host 1 before the work transfer is performed on the host 2 after the work transfer. The same screen as the screen can be displayed on the display 4, and the state of the task can be shifted from the host 1 to the host 2 as it is and activated.

[0025]

As described above, according to the present invention,
If it is necessary to transfer from the first host computer to the second host computer during the work, the first host computer before the transfer is used by the second host computer after the transfer.
Can be displayed on the work screen of the host computer, and the state of the task can be transferred to the second host computer after the transfer, so that the work can be performed from the beginning on the second host computer after the transfer. There is no need to redo, and the work can be automatically and smoothly resumed from the work interruption point of the first host computer before the migration, so that work efficiency can be improved as compared with the conventional case.

[Brief description of the drawings]

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

FIG. 2 is a flowchart for explaining a process of one embodiment of a main part of FIG. 1;

FIG. 3 is a flowchart illustrating a process of another embodiment of the main part of FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 first host computer (host) 2 second host computer (host) 3, 4 display 5 first history storage file 6 second history storage file 7 history storage means 8 history screen user management means 9 user account verification Means 10 Data transmission / reception means 11 Latest history collation means 12 Automount means 13 History storage file access means 14 Task execution means 15 Display display means

Claims (3)

(57) [Claims] 1. A host computer comprising a network capable of transmitting and receiving data to and from each other.
In the remote resume system in which the work is interrupted during the work of the first host computer and the work is transferred to the second host computer, the first host computer includes: a screen data displayed on its display; History saving means for saving the status of the task being performed in a first history saving file; a user account of a user who owns the screen data saved by the history saving means; A history screen user management unit for managing an update date and time, wherein the second host computer transmits a user account inquiry request to another host computer constituting the network, and in response to the request, The history screen and the user account information and the history storage file transmitted by the user management means. Transmitting / receiving means for receiving the update date and time information; and comparing the user logged in to the second host computer with the user account information obtained by the transmitting / receiving means, and determining the host computer name or the host computer location where the user account matches. Obtaining user account matching means, and when the user account is matched by the user account matching means, checks the latest update date and time from the history storage file update date and time information obtained by the transmitting and receiving means,
A latest history collating unit for obtaining a host computer name or a location of the host computer having the latest update history; and being activated when the latest history collating unit matches the data, the first history storage file is stored in a file system in a second file system. Auto-mounting means for mounting as a history storage file, a history storage file access means for reading the screen data and task status information from the second history storage file, and Task execution means for starting the same task from task status information; and display display means for displaying the same screen on the display from the screen data read by the history storage file access means after the task execution means starts the task. Characterized by having Remote resume system. 2. The remote resume system according to claim 1, wherein the auto-mounting unit unmounts the second history storage file after a screen is displayed by the display display unit. 3. The history storage means of the first host computer stores the screen data displayed on the display and the status of the task being executed in a first history storage file at regular time intervals. The remote resume system according to claim 1, wherein: