JP2639343B2 - IPL file transfer method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention
The present invention relates to an IPL file transfer method for transferring an IPL file from a distant place when performing a PL file.

[0002]

2. Description of the Related Art Generally, digital systems such as exchanges are
Initial setting is performed by using an IPL file. For example, Japanese Patent Application Laid-Open No. 2-228731 discloses a system. It has one IPL file and switches other applications so that various programs can be used.

[0003] However, if the IPL file is destroyed for any reason, the system cannot be started thereafter. For such a case, an IPL file is also provided outside the device, and when the exchange cannot be started due to a failure, the IPL file can be transferred from the external device and started. .

[0004]

However, in this case as well, if a failure occurs during the transfer of the IPL file from the external device, the exchange cannot be started, and in that case, it takes much time for recovery. Had issues. The present invention has been made in view of such a situation, and is intended to quickly recover from an IPL file failure.

[0005]

In order to solve such a problem, the present invention provides an exchange with an IPL file for starting the exchange.
IPL file area for storing files and whether it is an external device
Area that stores IPL files transferred from
When initializing a disk device with a
Then, transfer the IPL file from the external device to the work area.
If it is being sent, it is stored in the IPL file area.
The switch based on the IPL file
Transfer the IPL file from the external device to the work area.
If the IPL file is not being sent from the work area,
After transferring the IPL file to the
Based on the IPL file stored in the
Initial setting means for initial setting of the exchange.
You. In addition, an IPL file for starting the exchange is stored in the exchange.
The IPL file area to be stored and the transfer from the external device
Work area for storing IPL files
The IPL file is being transferred from the external device to the work area.
Transfer flag setting to set the transfer flag indicating whether or not
Disk device having a fixed area, and an IP from an external device.
When transferring an L file, set the file being transferred to ON.
After setting the IPL file transferred from the external device,
Work area, and IPL file to work area
Control means for setting the transfer flag to off after storage is completed
During the initial setup of the switch,
In some cases, the I stored in the IPL file area
Initialize the exchange based on the PL file and transfer
If medium flag is off, IPL from work area
After transferring the IPL file to the file area,
To the IPL file stored in the PL file area
Initial setting means for performing initial setting of the exchange based on the
It is those that.

[0006]

In the disk system of the exchange system, a work area and a transfer flag setting area are provided separately from the IPL file area. After the transfer flag is turned on, the file is temporarily transferred from the external device to the work area. The IPL file is transferred from the area to the IPL file area. At the time of initial setting of the exchange by the IPL file, if the transfer flag is on, the IPL file is transferred from the work area to the IPL file area. Initialize the exchange. If the transfer flag is on, the transfer is not performed from the work area, but the initialization is immediately performed from the IPL file area.

[0007]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. FIG.
FIG. 1 shows a state where an exchange 1 is connected to a network management system 3 via a line 2 and the exchange 1 has a disk device 4. The network management system 3 has an update IPL file 31 of the exchange 1 therein, and transfers the IPL file 31 to the exchange 1 via the line 2.

[0008] Inside the exchange 1, a control device 11 for transferring and storing files, an initial setting device 12 for performing initial settings,
It has a main memory 13. Further, a disk device 4 is provided outside the exchange 1, and the disk device 4 is an IPL.
An IPL file area 41 which is an area for storing files, a work area 42, and a transfer flag area 43 for a transfer display flag are prepared.

When the control unit 11 receives the update IPL file 31 from the network management system 3, it turns on the transfer flag in the transfer flag area 43 and then updates the update IPL file.
The file 31 is temporarily stored in the work area 42. When all the update IPL files have been stored, the transfer flag is turned off, and the previously transferred update IPL file 3
1 is transferred from the work area 42 to the IPL file area 41.

The initial setting unit 12 performs an initial setting when the exchange 1 needs to initialize the main memory 13 due to some trouble. In this initial setting, when the transfer flag in the transfer flag area 43 is off, the transfer of the update IPL file 31 from the network management system 3 to the work area 42 has already been completed.
2 to the IPL file area 41, and then transfer the IPL file from the IPL file area 41 to the IPL file area 41.
The L file is transferred to the main memory 13.

When the transfer flag in the transfer flag area 43 is on, the transfer is being performed from the update IPL file 31 of the network management system 3 to the work area 42, and the transfer of the IPL file is completed. I haven't
The data cannot be used. Therefore, the data is not transferred from the work area 42 to the main memory 13,
The IPL file stored in the L file area 41 is transferred to the main memory 13. Although this data is older than the data being updated, it is data whose transfer has been completed at a point in time before that point of time, so that a certain degree of reliability is guaranteed.
No problem occurs even if the initialization of 3 is performed.

Here, an initial setting procedure in the case where the exchange 1 fails while transferring the update IPL file 31 from the network management system 3 to the exchange 1 will be described. In this case, the update IPL file 31 has been transferred to the work area 42 only halfway. The initialization unit 12 can confirm this by turning on the transfer flag. However, as described above, the failure does not necessarily occur up to the IPL file in the IPL file area 41, so that the initial setting of the main memory 13 may be performed by the IPL file in the IPL file area 41.

Next, it is assumed that the exchange 1 becomes an obstacle during the transfer from the work area 42 to the IPL file area 41 and the initialization is performed. In this case, the IPL file area 41 stores the IPL transferred via the work area 42.
File is partially destroyed. However, the work area 42 must correctly store the IPL file. Further, since the transfer flag is OFF, the initial setting unit 12 detects this, transfers the IPL file to the IPL file area 41 from the beginning of the work area 42, and then transfers the IPL file area to the main memory 1 from the IPL file area.
3 is initialized.

As described above, even during the file transfer, the IPL in which either the new or the old file is not destroyed.
It can be initialized in a file.

[0015]

As described above, according to the present invention, two storage areas for the IPL file are prepared, and the initial setting is performed using one of the trusted IPL files. Even if the IPL file is transferred from the device, there is an effect that reliable initialization can be performed.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of one embodiment of the present invention.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Switchboard, 2 ... Line, 3 ... Network management system, 4 ... Disk device, 11 ... Control device, 12 ... Initial setting device, 13 ...
Main memory, 31 ... IPL file for update, 41 ... I
PL file area, 42: Work area, 43: Transferring flag.

Claims (2)

(57) [Claims] 1. A IPL file transfer method for transferring the IPL file for exchange start to an external device or al exchange, exchange, IPL file for storing IPL file for exchange start
File area and the IPL file transferred from the external device.
A disk device having a work area for storing files and an IPL file from an external device when initializing the exchange.
File is being transferred to the work area.
Based on the IPL file stored in the file area
Perform the initial setting of the exchange, and set the IPL file from the external device.
Work area if the file is not being transferred to the work area
Transfer IPL file from IPL to IPL file area
Stored in the IPL file area after the
Initialization procedure for initializing the switch based on a file
IPL file transfer method, characterized in that it comprises a stage. 2. An IPL file transfer system for transferring an IPL file for starting an exchange from an external device to an exchange, wherein the exchange includes an IPL file for storing the IPL file for starting the exchange.
File area and the IPL file transferred from the external device.
A work area for storing files and a work area from an external device.
During transfer indicating whether or not the IPL file is being transferred to
A transfer flag setting area for setting a flag.
When transferring an IPL file from a disk device and an external device ,
File transferred from an external device after the file is set to on.
Store the PL file in the work area and go to the work area
The transfer flag is set to male after the IPL file is stored.
The transfer flag is on when the switch is initialized and the switch is initialized.
In the case, the IPL stored in the IPL file area
Initialize the exchange based on the file, and
If the lag is off, the IPL file
IPL after transferring the IPL file to the file area
Based on the IPL file stored in the file area
And an initial setting means for initial setting of the exchange .