JPH01251117A - File server device - Google Patents

Abstract

PURPOSE:To prevent such constitution where a file under processing is broken or an information processor set at the remote side of connection becomes unworkable even though a control operator drops the power supply level by mistake in a file processing state by using an information processor kept under the logical connection. CONSTITUTION:A station 19 produces the user declaration in case the station 19 gives an access a file contained in a memory resources controlled by a file server device 10. Then the station 19 starts the operation of the file after confirming that said user declaration is accepted by the device 10 and the logical connection is satisfied. When the user declaration is received by a communication control part 4 from the station 19 at the side of the device 10, the part 4 informs the reception of said declaration to a CPU 1. Thus the CPU 1 performs the preparation for communication, e.g., the allocation of a buffer to a main memory 2, etc., and at the same time transmits a state display signal under logical connection to a power supply control part 8. In this state display state, a logical connection mode is held until the end declaration is received after the end of a file operation.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a file server device, and particularly to a file server device used via a communication path.

[Prior Art] Generally, when a file server device provided for this type of service is operated manually, the service is provided by setting an available time slot (service time slot). That is, according to a planned schedule,
The device administrator is turning the power on and off.

Therefore, a user who uses an information processing device connected to a file server device is responsible for managing the operation of the file server device,
Alternatively, in order to use the service, it is assumed that the service hours are known in advance.

By the way, when such a management method is adopted, a person is required to operate the device according to a predetermined service time. However, in recent years, with the development of office automation, many information processing devices have been deployed on office floors and are being used by a specific number of people. Therefore, conventionally,
It has become difficult to perform operations at the same level as those performed by specialized operators in computer rooms.

That is, some people are unable to finish using the file server device within the service time.

On the other hand, a file server device that is used via a communication path is a device that is difficult to judge whether or not it is in use by looking at it.

For this reason, in conventional file server devices, there was a high possibility that the power could be erroneously turned off even though the device was in use.

[Problems to be solved] In the conventional file server device described above, if an administrator accidentally turns off the power while processing a file, the file being processed may be destroyed or the connected information processing device may be unable to process it. This poses a problem in that it becomes impossible to execute and data and processing results are lost.

The present invention has been made in view of the above-mentioned problems. Even if an administrator accidentally turns off the power while processing a file, the file being processed may be destroyed or the information processing device of the connected partner may be unable to process the file. An object of the present invention is to provide a file server device that can prevent a file server device from becoming unexecutable.

[Means for Solving Problems] In order to achieve the above object, the file server device of the present invention includes a central processing unit, a console unit, a main storage unit, a communication control unit, a power supply control unit, and an input/output channel control unit. In the file server device, which is connected to an external storage device via the input/output control unit and connected to an external communication path via the communication control unit, the power supply control unit is connected to an electric source. If there is an information processing device that is logically connected to the file server device when the switch is turned off, the power-off is suspended, and while the power-off request is pending, the information processing device is This configuration eliminates the power-off hold control means for cutting off the power when the logical connection is released.

[Example] Hereinafter, the present invention will be explained in detail based on the drawings.

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

In the figure, l is a central processing unit, and its internal bus includes a main memory unit 2, a console unit 3 for displaying messages and inputting operation commands, and a wide area communication network or local area network. A communication control section 4 that performs data communication and an input/output channel control section 5 are connected.

6 is an external storage device, and input/output channel control i
It is connected to the central processing unit l via the aj unit 5.

On the other hand, 7 is a power supply device which receives commercial power, converts it into AC or DC power for use inside the device, and supplies it to each part. It also has a switch for turning on and off the power. A power supply control section 8 monitors the status signal from the central processing section 1, generates a control signal, and controls the power switch of the power supply device 8.

Next, FIG. 2 is a system configuration diagram when the file server device of FIG. 1 is connected to a plurality of stations through a local area network.

In FIG. 2, 10 is a file server device, and connected stations 11 to 19 are devices having an information processing function, such as a personal computer, to which a local area network connection function is added.

In the above configuration, for example, when the station 19 accesses a file in a storage resource managed by the file server device 10, it first issues a usage declaration. Then, the file server device IO accepts the declaration of use and starts file operations after confirming that a logical connection has been established. Also, when the file operation is completed, a termination declaration is issued and the logical connection is released.

In the file server device 10, when the usage declaration from the station 19 is received by the communication control unit 4, the communication control unit 4
notifies the central processing unit l of this. Then, in parallel with communication preparations such as allocating a buffer on the main storage unit 2, the central processing unit 1 outputs a logically connected state display signal to the power supply control unit 8. This status display remains logically connected until the file operation is completed and a termination declaration is received.

On the other hand, after receiving the usage declaration, the central processing unit 1 secures a buffer, etc., and when the file access is possible, it notifies the station 19 that the usage declaration has been accepted. Then, when a file manipulation command is received from the station 19, the file in the external storage device 6 is manipulated via the input/output channel control section 5, and services are provided to the station 19.

In principle, logical connections are possible even if usage declarations are issued from multiple stations, but the maximum number of connections that can be made at the same time will be selected depending on the type of service used, traffic volume, etc. It's difficult.

By the way, the power supply control unit 8 monitors the surface water during the logical connection from the central processing unit 1, and prevents the power from being turned off immediately even if the power switch is turned off during the logical connection. That is, a control signal is supplied to the power supply device 7 to cause the switch circuit to set a bypass route.

FIG. 3 is a block diagram of a switch circuit for setting a switch bypass route by a power supply control unit in the file server device of FIG. 1.

In FIG. 3, the received commercial power source is branched into two. On the one hand, there is a manual switch 21 as a so-called power switch that is manually operated by a device administrator, and an off detection circuit 22.
There is a main route that enters the power supply circuit 240 through the power section, and the other side is an automatic switch 20 that is turned on and off by the power supply control section 8, and a manual switch 23 for forced disconnection in case this automatic switch 20 breaks down. This is a bypass route connected in series. Then, both routes are coupled at the input portion of the power supply circuit 24. Note that the manual switch 23 on the bypass route is for emergency use when the automatic switch 20 fails. For this reason, it is normally conductive all the time, and it is desirable to install it inside the housing to prevent accidental touching.

Now, when the power supply control section 8 detects surface water during the logical connection from the central processing section 1, it turns on the automatic switch 20 and sets a bypass route. Thereby, even if the administrator accidentally disconnects the manual switch 21, a power supply route from the commercial power source to the power supply circuit 24 can be secured.

Further, if the surface water runs out during the logical connection from the central processing unit 1, the power supply control unit 8 turns off the automatic switch 20. Therefore,
If the manual switch 21 is turned off at that time, the power to the file server device 10 is automatically turned off.

With such a configuration, even if the administrator accidentally tries to turn off the power of the file server device IO and operates the manual switch 21 even though any station is using the file server device 10, The power won't turn off. Furthermore, when the main route power supply is turned off, the off detector 22 detects this and notifies the power supply control unit 8 of the same. Then, the power supply control section 8 interrupts the central processing section 1 and generates an alarm in the console device 3 indicating that a station is logically connected.

This allows the operator to know the status of the file server device.

In this way, in this embodiment, a power control function is added to the file server device used via the communication path.

In other words, a bypass path is set up at the power switch while the file server device is being accessed via a communication path, so even if the power switch is accidentally operated while a file is being manipulated, there will be no power outage. You will be stuck waiting until the file operation is completed, which can reduce the risk of file destruction. With i, station users no longer have to worry about losing files or processing results if the service time is exceeded.

Furthermore, since the power is automatically turned off after file access is completed, if the administrator turns off the power switch, the same function as remote power-off from the station is realized.

[Effects of the Invention] As explained above, the present invention suspends power-off and suspends power-off if there is an information processing device logically connected to the file server device when the power switch is turned off. If the logical connection from the information device is released while a power-off request is pending, the power will be turned off, and if the service time is exceeded and the administrator turns off the power switch. Even in this case, it is possible to provide a file server device that does not cause files to be lost.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a file server device according to an embodiment of the present invention, FIG. 2 is a block diagram of a network system using the file server device of FIG. 1, and FIG. 3 is a block diagram of the file server device of FIG. 1. FIG. 2 is a block diagram of a switch circuit for bypass route setting used in FIG. 1: Central processing unit 2: Main storage unit 3: Console device 4: Communication control unit 5: Input/output channel control unit 6: External storage device 7: Power supply device 8: Electrical control unit 1O: File server device 20: Automatic switch 22: off detector

Claims (1)

[Claims] It has a central processing section, a console section, a main storage section, a communication control section, a power supply control section, and an input/output channel control section, and is connected to an external storage device via the input/output control section. In the file server device connected to an external communication path via the communication control unit, the power supply control unit includes:
If there is an information processing device that is logically connected to the file server device when the power switch is turned off, the power-off is suspended and the above information is stored while the power-off request is pending. A file server device comprising: a power-off hold control means for cutting off the power when a logical connection from the device is released.