JP3214423B2 - Server remote maintenance management 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 server remote maintenance management system for maintaining a server from a remote place, and more particularly, to a method for maintaining a plurality of servers installed at the same place from a remote place via a modem. In addition, the present invention relates to a server remote maintenance management system that can be performed by one public line.

[0002]

2. Description of the Related Art FIG. 9 is a diagram showing a configuration example 1 of a conventional remote maintenance management system for a server. In FIG. 9, 1 is a computer site to be remotely maintained, 1-1 to 1-n are a plurality of server machines, and 2-1 to 2-n are server machines 1-1 to 1-n, respectively.
A server management device (SMC) for monitoring the status of the server; 4-1 to 4-n and 81 are modems;
41 to 4n and 82 are modem cables, 6 is a public line network, 61 to 6n and 83 are public lines, and 80 is a remote maintenance console.

As shown in FIG. 9, even when a plurality of server machines 1-1 to 1-n are installed on a relatively narrow computer site 1 such as the same floor of an office building, remote maintenance is performed from a remote maintenance console 80. In order to perform the above, it is necessary to separately lay public lines 61 to 6n on the respective server machines 1-1 to 1-n and to connect the modems 4-1 to 4-n, respectively. For this reason, there are drawbacks that laying of the public lines 61 to 6n requires a lot of labor and cost, and that a basic public line charge is required.

FIG. 10 is a diagram showing a configuration example 2 of a conventional remote maintenance management system for a server. 11, the same reference numerals as those in the conventional example shown in FIG. 9 indicate the same or corresponding parts. As a new configuration, 3-1 to 3-m are switching devices, 31 to 3m are modem cables, 5 is a private branch exchange (PBX), 51 to 5
m is a private line connected from the PBX 5 to the modems 4-1 to 4m.

In FIG. 10, the number of the public line 61 and the number of the modems 4-1 to 4m can be smaller than that of the configuration example 1 of FIG.
It was necessary to newly provide 3-m and private lines 51 to 5 m. For this reason, the PBX 5 and the switching devices 3-1 to 3-3 are used.
-M and the addition of the private lines 51 to 5m have the disadvantage that the cost increases and labor is required to lay the private lines 51 to 5m.

[0006]

As described above, in the conventional remote maintenance management system shown in FIG.
Even when the communication devices 1-1 to 1-n are installed in a relatively narrow place, the modems 4-1 to 4-n are connected to each of the installed server devices 1-1 to 1-n, Lines 61-6
n must be laid separately, so the public line 61
There are drawbacks in that a lot of labor and cost are required for laying ６6n, and a basic public line charge is high.

In the conventional remote maintenance management system shown in FIG. 10, one public line 61 and one of modems 4-1 to 4-1 are used.
Although the number of m can be smaller than that of the configuration example 1 in FIG. 9, the PBX 5, the switching devices 3-1 to 3-m, and the private lines 51 to 5m are newly provided.
5 and the switching devices 3-1 to 3-m and the private lines 51 to 5m, the cost increases, and the private lines 51 to 51
There is a disadvantage that labor is required for laying 5 m.

Therefore, the present invention has been made to solve the above problems, and has been made so that a single public line can be shared by a plurality of server machines without adding an external device, It is an object of the present invention to provide a server remote maintenance management system that can easily and at a low cost perform remote maintenance of a plurality of server machines arranged at the same site using one public line.

[0009]

According to the first aspect of the present invention,
Via remote maintenance console and modem for remote maintenance
Connected to the server management device of each server machine installed at the same computer site, its own user ID and password and
Storage means for storing a connection flag and a permission flag, a modem interface for connecting to the modem, and a server management device communication interface for communicating with a server management device of another server machine; The server management device of the second server is connected to the modem via the modem interface, and the server management device of the second server is connected to the server management device via the communication interface between the server management devices. When the server management device of the third server device is connected by a communication interface between the server management devices, and the server device is located downstream of the third server device on the opposite side of the modem, each server management device is similarly connected to the server. Connected by the management device communication interface, and the server management device of the first server machine is connected to the same device via the server management device communication interface. It is configured to communicate with the server management device of a server installed machine calculation machine site, the thermic
The server management device is a user specified from the remote maintenance console.
The ID and password are registered to the user
If this is the case, the permission flag in the storage means is set and the response is sent to the remote
Sent to the maintenance console and registered with itself
Communication interface between server management devices
Connection from another server management device via
Set the flag and send the response to another server
Sent via the server management device communication interface,
After that, via the server management device with the connection flag set
The remote maintenance console and the server with the permission flag set
Communication with the server management device .

[0010] According to a second aspect of the present invention, in the server remote maintenance management system according to the first aspect, the server management device of the first server is connected to the server management device of the last server in the connection. It is characterized by being connected by an inter-communication interface.

The third aspect of the present invention is directed to the first and second aspects .
In any of the server remote maintenance management methods described in any of the above,
Among the server machines other than the first server machine installed in the same computer site, the server management device of any server machine is different from the modem connected to the server management device of the first server machine. And a line input unit of the modem is connected to a telephone output unit of the modem connected to the server management device of the first server machine.

The invention according to claim 4 is the invention according to claims 1 to 3 .
In any of the server remote maintenance management methods described in any of the above,
An ID code registering means for registering an ID code specifying the server management device, a server management device of each server machine connected by the server management device communication interface, and a server management device transmitted and received from a remote maintenance console via a modem. If the ID code for specifying the device and the ID code for specifying the server management device read from the ID code registration unit match and match, the status information of the corresponding server device is read, and the read status information of the server device is stored in the server. If there is a server management device connected by the communication interface between management devices, the server management device has a server information transmitting unit that transmits the server management device to the remote maintenance console via a modem via the server management device.

According to a fifth aspect of the present invention , maintenance is performed remotely.
Connected to the remote maintenance console via a modem, the server management device of each server installed at the same computer site has its own user ID, password, connection flag and permission.
Storage means for storing an available flag, a modem interface for connection to the modem, and a pass-through interface for transmitting information received by the modem interface to a server management device of another server machine. The modem interface of the server management device is connected to the modem, the pass-through interface of the server management device of the first server is connected to the modem interface of the server management device of the second server, and the modem of the second server is connected to the modem. When the pass-through interface of the server management device is connected to the modem interface of the server management device of the third server device, and the server device is located downstream of the third server device on the opposite side of the modem, each of the server devices is similarly operated. Connect the management device with a pass-through interface and a modem interface, and Server management device of the server computer, via a pass-through interface and modem interface, will be configured to communicate with the server management device of a server installed machine on the same computer site, the thermic
The server management device is a user specified from the remote maintenance console.
The ID and password are registered to the user
If this is the case, the permission flag in the storage means is set and the response is
Sent to the maintenance console and registered with itself
And the response is passed through a pass-through interface
Connection flag when received from another server management device
And send the response to the server management
Interface, then set connection flag
Remote maintenance console via the server management device
Between the server and the server management unit with the permission flag set
Is performed .

According to a sixth aspect of the present invention, in the remote maintenance management system for a server according to the fifth aspect, the server management device of each server connected via the pass-through interface and the modem interface specifies the server management device. I
The ID code registration means for registering the D code is compared with the ID code for specifying the server management apparatus transmitted and received from the remote maintenance console via the modem and the ID code for specifying the server management apparatus read from the ID code registration means. If they match, the status information of the corresponding server is read, and the read status information of the server is
When there is a server management device connected by an interface and a modem interface, the server management device transmits the server information to the remote maintenance console via the modem via the server management device.

[0015]

Embodiments of the present invention will be described below in detail with reference to the drawings. Embodiment 1 FIG. FIG. 1 is a block diagram showing a configuration of a remote maintenance management system for a server according to the first embodiment of the present invention.
1, the same reference numerals as those in the conventional example shown in FIG. 9 indicate the same or corresponding parts. As a new configuration, the SMC has an SM for performing data communication with the other two adjacent SMCs.
An inter-C interface is provided. Also, 211-
21n-1 is an SM that connects the SMC interface between SMCs and the SMC interface between SMCs of other server machines.
C connection cable, this SMC connection cable 2
11 to 21n-1 have the same configuration as the modem cable 41.

FIG. 2 is a block diagram showing the configuration of each SMC shown in FIG. 200 is a CPU of the SMC that controls the operation of the SMC, 201 is a ROM for storing firmware for controlling the operation of the SMC, 202 is an internal variable, an internal flag, and a user name necessary for the operation of the firmware of the SMC. Readable / writable RAM for storing passwords, etc., 203 is an SMC
A server interface for reading information from the server unit, setting the status, and instructing the server unit to reset; a modem interface 204 for controlling a modem and transmitting / receiving data;
Reference numerals 05 and 206 denote interfaces between the SMCs for performing communication with the SMC of another server machine. Modem interface 204 and SMC interfaces 205 and 20
6 is a UART 251 for converting parallel data into serial data when communicating data, and RS-232C.
Level converter 252 for converting the signal level based on the standard
It is composed of

Next, the operation of the remote maintenance management system according to the first embodiment will be described. In FIG. 1, a case where the status of the server machine 1-3 is referred to from the remote maintenance console 80 will be described as an example. First, communication paths of the modem cable 82, the modem 81, the public line 83, the public line network 6, the public line 61, the modem 4-1, the modem cable 41, and the SMC 2-1 are established from the remote maintenance console 80. Next, the remote maintenance console 80 transmits an authentication command packet including a user name and a password registered in the SMC 2-3 of the server machine 1-3 to view the contents of the server machine 1-3. . When receiving the authentication command packet transmitted from the remote maintenance console 80, the SMC 2-1 checks whether the user name and the password included in the authentication command packet are registered in the SMC 2-1. In this case, the user name and password of the received authentication command packet are SMC2
-1 is not registered in the SMC 2-1.
The received authentication command packet is transmitted to the SMC 2-2 connected by the inter-MC connection cable 211.

The SMC 2-2 is an SMC connection cable 2
SMC2-3 transmitted from SMC2-1 through 11
Receives an authentication command packet containing a user name and password registered in. The SMC 2-2 uses this S
Upon receiving the authentication command packet transmitted from the MC 2-1, it checks whether the user name and password of the authentication command packet are registered in the SMC 2-2 itself. In this case, since the received user name and password are not those registered in SMC2-2,
The MC 2-2 transmits the received authentication command packet to the SMC 2-3 connected by the SMC connection cable 212.

The SMC 2-3 is an SMC connection cable 2
SMC2-3 transmitted from SMC2-2 through 12
Receives an authentication command packet containing a user name and password registered in. Authentication command received
Since the packet includes the user name and password registered in the SMC 2-3, the SMC 2-3 sets an internal permission flag in the RAM 202 to permit reference from the remote maintenance console 80, and sets an approval response packet. Is transmitted to the SMC 2-2 via the SMC connection cable 212.

The SMC 2-2 is an SMC connection cable 2
When the acknowledgment response packet transmitted from the SMC 2-3 through the SMC 12 is received, it is recognized that the SMC 2-3 is connected, the internal connection flag is set in the RAM 202, and the received acknowledgment response packet is transmitted to the SMC connection cable 211. To the SMC 2-1 via the. SMC
2-1 is an SMC via the SMC connection cable 211
When receiving the acknowledgment response packet transmitted from 2-2,
It recognizes that the SMC 2-2 is connected, sets the internal connection flag in the RAM 202, and transmits the received acknowledge response packet to the remote maintenance console 80 via the modem interface 204.

When the acknowledgment response packet transmitted from the SMC 2-1 is received by the remote maintenance console 80, the remote maintenance console 80 determines that it is possible to refer to the state of the server machine 1-3, The read command packet for reading the state of the server machine 1-3 is SM
Transmit to C2-1. When the SMC 2-1 receives the read command packet for reading the status of the server machine 1-3 transmitted from the remote maintenance console 80,
Since the internal connection flag indicating that MC2-2 is connected is set, the received read command
The packet is transmitted to SMC2-2.

When the SMC 2-2 receives the read command packet transmitted from the SMC 2-1 for reading the status of the server machine 1-3, the SMC 2-2 sets an internal connection flag indicating that the SMC 2-3 is connected. The received read command packet is transmitted to SMC2
-3. When the SMC 2-3 receives the read command packet transmitted from the SMC 2-2 for reading the state of the server machine 1-3, the internal permission flag of reference permission has already been set, so the server machine 1-3
Is set in the read response packet and transmitted to the SMC 2-2.

When the SMC 2-2 receives the read response packet transmitted from the SMC 2-3, the SMC 2-2
Since the internal connection flag indicating that is connected is set, the received read response packet is
Send to 2-1. When the SMC 2-1 receives the read response packet transmitted from the SMC 2-2, the SMC 2-1
Since the internal connection flag indicating that 2-2 is connected is set, the received read response packet is transmitted to the remote maintenance console 80 via the modem interface 204.

The remote maintenance console 80 uses the SMC2
-1 and a read response packet including the content indicating the status of the server machine 1-3 transmitted from the server machine 1-3 is received.
Earn part of the state. The remote maintenance console 80
A read command packet is repeatedly transmitted until information of the server machine 1-3 that can be collected via the SMC 2-3 is obtained, and a read response packet returned from the SMC 2-3 via the SMC 2-1 and the SMC 2-2. The state of the server machine 1-3 is referred to based on the content set in the server machine 1-3.

Here, the remote maintenance console 80
By acquiring a part of the state of the server machine 1-3 for one read command packet transmitted from the remote maintenance console 80 and repeatedly transmitting the read command packet from the remote maintenance console 80 to the server machine 1-3, The case where the status of the server 1-3 is referred to has been described, but the configuration is such that all information on the status of the server 1-3 is acquired at once for one read command packet transmitted from the remote maintenance console 80. May be. Although the case where the remote maintenance console 80 refers only to the information of the server machine 1-3 has been described, the server 1 other than the server machine 1-3 is transmitted from the remote maintenance console 80 by the same method as described above.
All information of -1 to 1-n can be referred to.

As described above, in the present embodiment, the S of each of the server machines 1-1 to 1-n installed in the same computer site 1
The MC 2-1 to 2-n are provided with a modem interface 204 for connecting to a modem and SMC communication interfaces 205 and 206 for communicating with the SMCs of the other two server machines. 1 is connected to the modem 4-1, and the SMC 2-2 and the S
Connected by the communication interfaces 205 and 206 between the MCs, the SMC 2-2 of the server machine 1-2 and the SMC of the server machine 1-3 are connected.
2-3 are connected by the SMC communication interfaces 205 and 206, and the server on the opposite side of the server 1-3 opposite to the modem 4-1 is similarly connected, and the SMC of the server 1-1 is connected.
2-1 is connected to the SMC communication interfaces 205 and 206.
Is communicated with the SMCs 2-2 to 2-n of the other server machines 1-2 to 1-n installed in the same computer site 1 via the remote maintenance console 80. Through the lines 61 and 81 and one modem 4-1, all the servers 1-1 to 1-n installed in the same computer site 1 can be connected and maintained. For this reason, connect a modem to each installed server machine,
In addition, it is not necessary to separately lay the public line, and the labor and cost for installation can be reduced. In addition, the basic cost of the public line can be reduced to only one line, and the maintenance cost can be reduced. Increase can be suppressed. Further, since it is not necessary to install devices such as a private switchboard and a switching device, a remote maintenance system can be realized at low cost and with a small space.

Embodiment 2 FIG. FIG. 3 is a block diagram showing a configuration of a remote maintenance management system for a server according to a second embodiment of the present invention. 3, the same reference numerals as those in the first embodiment shown in FIG. 1 indicate the same or corresponding parts. As a new configuration, the SMC 2-n of the server machine 1-n at the last stage of the connection
The first server 1-1 connected to the interface between MCs
The SMC interface of the SMC 2-1 is connected by the SMC connection cable 21n.

Next, the operation of the remote maintenance management system according to the second embodiment will be described. In FIG. 3, the server machine 1-2
The case where the status of the server machine 1-3 is referred to from the remote maintenance console 80 when the SMC 2-2 has failed will be described as an example. First, communication paths of the modem cable 82, the modem 81, the public line 83, the public line network 6, the public line 61, the modem 4-1, the modem cable 41, and the SMC 2-1 are established from the remote maintenance console 80. Next, the remote maintenance console 80 transmits an authentication command packet including a user name and a password registered in the SMC 2-3 of the server machine 1-3 to view the contents of the server machine 1-3. .

Upon receiving the authentication command packet transmitted from the remote maintenance console 80, the SMC 2-1 determines whether the user name and password included in the authentication command packet are registered in the SMC 2-1. Check. In this case, the received authentication command
Since the user name and password of the packet are not registered in the SMC 2-1, the SMC 2-1 transmits the received authentication command packet to the SMC 2-2 connected by the SMC connection cable 211. However, SMC2
-2 indicates that the SMC connection cable 21 has failed.
Authentication command transmitted from SMC 2-1 through
The response to the packet cannot be returned. Then, SMC2-1 sends an authentication command from SMC2-2.
Since the response to the packet is not returned, the authentication command received by the SMC2-n of the server machine 1-n at the last stage of the connection connected via the SMC connection cable 21n.
Send a packet.

The SMC2-n at the last stage is an authentication command including a user name and a password registered in the SMC2-3 transmitted from the first SMC2-1 connected via the SMC connection cable 21n. Receive the packet.
When the SMC2-n receives the authentication command packet transmitted from the SMC2-1, the SMC2-n receives the authentication command packet.
The user name and password of the packet are the last stage SMC2-
Check whether the information is registered to itself. In this case, since the user name and password of the received authentication command packet are not those registered in the last-stage SMC2-n, the last-stage SMC2-n is connected by the SMC connection cable 21n-1. The received authentication command packet is transmitted to the preceding SMC2-n-1.

Similarly, the authentication command packet is changed from SMC2-1 → SMC2-n →... → SMC2-5.
→ Transmission and reception are repeated with SMC2-4, and finally SMC
2-3. SMC2 received by SMC2-3
Since the authentication command packet including the user name and password registered in SMC2-3 includes the user name and password registered in SMC2-3, SMC2-
3 sets an internal permission flag for permitting reference from the remote maintenance console 80 in the RAM 202, and transmits an approval response packet to the SM via the SMC connection cable 213.
Send to C2-4. When receiving the acknowledgment response packet transmitted from the SMC 2-3 via the SMC connection cable 213, the SMC 2-4 recognizes that the SMC 2-3 is connected, sets the internal connection flag, and receives the received packet. An acknowledgment response packet is transmitted to the SMC 2-5 via the SMC connection cable 214.

Similarly, the acknowledgment response packet is S
MC2-4 → SMC2-5 → ... → SMC2-n → S
The transmission and reception with the MC 2-1 are repeated, and the setting of the internal connection flag is repeated. SMC2-1 is SM
The final stage SMC2-n via the C connecting cable 21n
SMC receives an acknowledgment packet sent from
2-n recognizes that it is connected, sets the internal connection flag, and sends the received acknowledge response packet to the remote maintenance console 80 via the modem interface 204. When this approval response packet is received by the remote maintenance console 80, the remote maintenance console 80
Determines that it is possible to refer to the state of the server machine 1-3, and transmits a read command packet for reading the state of the server machine 1-3 to the SMC 2-1.

The read command packet is SMC2
-1, after receiving SMC2-1 → SMC2-n →
... SMC2-5 → SMC2-4 → SMC2-3. When the SMC 2-3 receives the read command packet, since the internal permission flag of reference permission has already been set, the SMC 2-3 sets the content indicating the state of the server machine 1-3 in the read response packet and sets the SMC connection cable. 213 to the SMC 2-4. SMC
2-4, since the internal connection flag is set, the received read response packet is transmitted to the SMC connection cable 2
14 to the SMC 2-5. Similarly, the read response packet is changed from SMC2-4 to SMC2.
-5 →... → SMC2-n → SMC2-1. Since the internal connection flag is set, the SMC 2-1 transmits the received read response packet to the remote maintenance console 80 via the modem interface 204.

The remote maintenance console 80 uses the SMC2
-1 and a read response packet including the content indicating the status of the server machine 1-3 transmitted from the server machine 1-3 is received.
Earn part of the state. The remote maintenance console 80
A read command packet is repeatedly transmitted until the information of the server machine 1-3 that can be collected via the SMC 2-3 is obtained, and the read command packet is transmitted through the SMC 2-1 to SMC 2-4.
The state of the server machine 1-3 is referred to based on the content set in the read response packet returned from the SMC 2-3.

Here, the remote maintenance console 80
By acquiring a part of the state of the server machine 1-3 for one read command packet transmitted from the remote maintenance console 80 and repeatedly transmitting the read command packet from the remote maintenance console 80 to the server machine 1-3, The case where the status of the server 1-3 is referred to has been described, but the configuration is such that all information on the status of the server 1-3 is acquired at once for one read command packet transmitted from the remote maintenance console 80. May be. Also, the case where the remote maintenance console 80 refers to only the information of the server machine 1-3 has been described. However, in the same manner as described above, the server machine 1 other than the failed server machine 1-2 is transmitted from the remote maintenance console 80 by the same method. All information of -1 to 1-n can be referred to.

For example, when the user wants to know the status of the server machine 1-4, he cannot go to the server machine 1-1 if the SMC 2-1 is out of order.
If there is no failure in -1 to 2-n, the server can be taken from the SMC 2-1 of the server 1-1 by the method of the first embodiment. When the SMC 2-3 of the server machine 1-3 is out of order, it cannot be taken out by the method of the first embodiment. Therefore, according to the method of the second embodiment, the SMC 2-3 of the last server machine 1-n is used. Then, information on the state of the server machine 1-4 is obtained via n.

As described above, in the present embodiment, the SMC 2-1 of the first server machine 1-1 is connected to the SMC 2-n of the last server machine 1-n by the SMC communication interface 21n. In this configuration, one public line 61, 83 and one modem 4-
Server machines 1 other than the first server machine 1-1 to which the modem 4-1 is connected among the server machines 1-1 to 1-n installed in the same computer site 1 which is remotely maintained via the PC 1 -2
Even if the SMC 2-2 to 2-n of any one of the server machines 1-2 to 1-n fails among the SMCs 2-2 to 2-n of the. Since remote maintenance of the machine can be performed, remote maintenance can be performed more reliably.

Embodiment 3 FIG. 4 is a block diagram showing a configuration of a remote maintenance management system for a server according to a third embodiment of the present invention. 4, the same reference numerals as those in the second embodiment shown in FIG. 3 indicate the same or corresponding parts. As a new configuration, the modem 4-2 is connected to the SMC 2-2 by the modem cable 42, and the telephone output unit 4-1a of the modem 4-1 connected to the first SMC 2-1 is connected to the modem 4-2.
-2 line input section 4-2a. Normally, a modem has a line input unit for connecting to a telephone line and a telephone output unit for connecting a telephone in order to share the modem and the telephone with one telephone line.In this embodiment, This function is used.

Next, the operation of the remote maintenance management system according to this embodiment will be described. In FIG. 4, the first connection S
When the MC 2-1 has failed, the remote maintenance console 8
The case where the status of the server machine 1-3 is referred to from 0 will be described as an example. When the incoming signal from the modem 4-1 becomes significant n times or more, the SMC 2-1 transmits an AT command (modem control command) for connection to the modem 4-1. 81, and the SMC 2-2 is connected to the modem 4-2.
When the incoming signal from the server becomes significant at least m times, an AT command for connection is transmitted to the modem 4-1.
2 and a modem 81 are established. Here, n and m are different values, and SMC2-1 and SMC2-1 are different values.
The MC 2-2 is set not to transmit the AT command for connection to the modem at the same time, and has a relationship of n <m.

First, an AT command for calling is transmitted from the remote maintenance console 80 to the modem 81.
Lines are connected via the public line 83, the public line network 6, and the public line 61, and the modem 4-1 is connected to the SMC 2-1.
The modem 4-2 repeatedly makes the SMC 2-2 enable / disable the incoming call signal. At this time, SMC2-1
Has failed, the SMC 2-1 does not transmit an AT command for connection to the modem 4-1 even if the incoming signal of the modem 4-1 becomes valid n times. At the same time, the modem 4-2 validates the incoming call signal n times, but since it has not reached m times, the SMC 2-2 also does not transmit the AT command for connection. When the time elapses and the modem 4-2 validates the incoming call signal m times, the SMC 2-2 transmits an AT command for connection to the modem 4-2. Thus, the remote maintenance console 80 connects the modem cable 8
2, modem 81, public line 83, public line network 6, public line 61, modem 4-2, modem cable 42, SMC2
A communication path of -2 is established.

Next, the remote maintenance console 80 checks the communication path in which the authentication command packet including the user name and the password registered in the SMC 2-3 has been established in order to view the contents of the server machine 1-3. To the SMC 2-2 via the The SMC 2-2 uses the remote maintenance console 80
Receives the authentication command packet sent from
The user and password of the authentication command packet are S
It is checked whether it is registered in MC2-2 itself. In this case, since the user name and the password included in the received authentication command packet are not those registered in the SMC 2-2, the SMC 2-2 receives the user name and the password in the SMC 2-3 connected by the SMC connection cable 212. Send an authentication command packet.

The SMC 2-3 is an SMC connection cable 2
SMC2-3 transmitted from SMC2-2 via SMC12
Receives an authentication command packet containing a user name and password registered in. Authentication command received
Since the packet includes the user name and the password registered in the SMC 2-3, the SMC 2-3 sets an internal permission flag permitting reference from the remote maintenance console 80, and transmits the approval response packet to the SMC. It is transmitted to the SMC 2-2 via the connection cable 212. SMC
2-2, upon receiving the acknowledgment response packet transmitted from the SMC 2-3, recognizes that the SMC 2-3 is connected, sets the internal connection flag, and transmits the received acknowledgment response packet to the modem interface 204. And to the remote maintenance console 80 via the established communication path. When the remote maintenance console 80 receives the acknowledgment response packet transmitted from the SMC 2-2, the remote maintenance console 80 determines that it is possible to refer to the state of the server machine 1-3, and
-3 is sent to the SMC 2-2 via the established communication path.

The SMC 2-2 is connected to the remote maintenance console 80
When a read command packet for reading the state of the server machine 1-3 transmitted from the server is received, the SMC2-
Since the internal connection flag indicating that No. 3 is connected is set, the received read command packet is transmitted to the SMC 2-3 via the SMC connection cable 212. When the SMC 2-3 receives the read command packet transmitted from the SMC 2-2, the content indicating the state of the server machine 1-3 is set in the read response packet because the internal permission flag of reference permission has already been set. Through the SMC connection cable 212
Send to 2-2.

When the SMC 2-2 receives the read response packet including the contents indicating the status of the server machine 1-3 transmitted from the SMC 2-3, the SMC 2-2 sets an internal connection flag indicating that the SMC 2-3 is connected. Has been
The received read response packet is transmitted to the remote maintenance console 80 via the modem interface 204 via the established communication path. Remote maintenance console 8
0 is the server machine 1-3 transmitted from the SMC 2-2.
Receiving a read response packet including the content indicating the state of the server machine 1-3, and acquires a part of the state of the server machine 1-3. The remote maintenance console 80 repeatedly sends a read command packet until the information of the server machine 1-3 that can be collected via the SMC 2-3 is obtained, and the read returned from the SMC 2-3 via the SMC 2-2. The status of the server machine 1-3 is referred to based on the content set in the response packet.

It should be noted that here, the remote maintenance console 80
By acquiring a part of the state of the server machine 1-3 for one read command packet transmitted from the remote maintenance console 80 and repeatedly transmitting the read command packet from the remote maintenance console 80 to the server machine 1-3, The case where the status of the server 1-3 is referred to has been described, but the configuration is such that all information on the status of the server 1-3 is acquired at once for one read command packet transmitted from the remote maintenance console 80. May be. Also, the case where the remote maintenance console 80 refers to only the information of the server machine 1-3 has been described. However, in the same manner as described above, the first server machine in which the SMC 2-1 has failed is transmitted from the remote maintenance console 80. All information of the server machines 1-2 to 1-n other than 1-1 can be referred to.

For example, when it is desired to know the status of the server machine 1-4, the SMCs 2-1 to 2-n of the server machines 1-1 to 1-n can be used.
If there is no failure in the server machine 1-1, it is possible to take it out from the SMC 2-1 of the server machine 1-1 by the method of the first embodiment. Server machine 1
In the case where the SMC 2-3 of the -3 is out of order, the first embodiment is used.
Therefore, the information of the state of the server machine 1-4 is obtained via the SMC 2-n of the last server machine 1-n by the method of the second embodiment. When the SMC 2-1 of the server machine 1-1 is out of order, the process proceeds to the above-described method according to the present embodiment.

As described above, in the present embodiment, of the server machines 1-2 to 1-n other than the first server machine 1-1 installed in the same computer site 1, the server machine 1-2 is selected. S
MC2-2 is the SMC2-1 of the first server machine 1-1.
Is connected to a modem 4-2 different from the modem 4-1 connected to the first server machine 1-1. The line input section 4-2a of the modem 4-2 is connected to the SMC 2-1 of the first server machine 1-1. Since it is connected to the telephone output unit 4-1a of the modem 4-1, the remote maintenance is performed from the remote maintenance console 80 via one public line 61, 83 by adding one modem 4-2. Server machine 1 installed in the same computer site 1
SMC of the first server 1-1 among -1 to 1-n
SMC2 of the second server machine 1-2 even if 2-1 fails
, The remote maintenance of the other server machines 1-2 to 1-n can be performed, so that the SMC 2-1 to 1-n of the server machines 1-1 to 1-n installed in the same computer site 1 can be performed. 2-n
Even if one of them fails, remote maintenance of another server can be performed, and remote maintenance can be performed more reliably.

In the above embodiment, among the server machines 1-2 to 1-n other than the first server machine 1-1 installed in the same computer site 1, the SMC of the server machine 1-2 is set.
2-2 is connected to a modem 4-2 different from the modem 4-1 connected to the SMC 2-1 of the first server machine 1-1, and the line input section 4-2a of the modem 4-2 is connected. A modem 4 connected to the SMC 2-1 of the first server machine 1-1
-1a is connected to the telephone output unit 4-1a, but the server units 1-2 to 1-1 other than the first server unit 1-1 installed in the same computer site 1 are described.
n, the SMC of any server is connected to a modem 4-2 different from the modem 4-1 connected to the SMC 2-1 of the first server 1-1, and this modem 4-2 The line input unit 4-2a of the first server machine 1-1 is connected to the SMC of the first server machine 1-1.
2-1. Telephone output unit 4- of modem 4-1 connected to 2-1.
1a. In this case, too, the modem 4a
-2 is added, only one of the server machines installed in the same computer site 1 that is remotely maintained from the remote maintenance console 80 via one public line 61, 83 Even if the SMC breaks down, remote maintenance of other server machines can be performed, so remote maintenance can be performed more reliably.

Embodiment 4 FIG. 5 is a block diagram showing a configuration of the SMC according to the fourth embodiment of the present invention. 5, the same reference numerals as those in FIG. 2 indicate the same parts. SMC is
An ID code for specifying the SMC can be set in the RAM 202 of the SMC.

Next, the operation of the remote maintenance management system according to this embodiment will be described. In the present embodiment, the SMCs 2-1 to 2-n having the configuration shown in FIG.
Is realized in place of the SMC having the configuration shown in FIG. In FIG.
A case will be described as an example where the statuses of the server machines 1-1 to 1-3 are referred to from the remote maintenance console 80. First, from the remote maintenance console 80 to the modem cable 82,
Modem 81, public line 83, public line network 6, public line 6
1, modem 4-1, modem cable 41, SMC2-1
Is established. Next, the remote maintenance console 80 establishes an authentication command packet including a user name and a password registered in the SMC 2-1 of the server machine 1-1 in order to view the contents of the server machine 1-1. To the SMC 2-1 via the communication path.

When the SMC 2-1 receives the authentication command packet including the user name and the password registered in the SMC 2-1 transmitted from the remote maintenance console 80, the user name and the password of the authentication command packet are received. Is registered in the SMC 2-1 itself. The received authentication command packet is
Since the user name and password registered in the SMC 2-1 are included, the SMC 2-1
And sets an internal permission flag for permitting reference from the server and transmits an approval response packet including an ID code specifying the SMC 2-1 to the remote maintenance console 80. The remote maintenance console 80 receives the approval response packet transmitted from the SMC 2-1 to determine that it is possible to refer to the state of the server 1-1, and to set the status in the approval response packet. The ID code specifying the SMC 2-1 is stored.

Next, the remote maintenance console 80 checks the contents of the server machine 1-2 to check the contents of the server machine 1-2.
The authentication command packet including the user name and the password registered in the MC 2-2 is transmitted to the SMC 2-1 via the established communication path. When the SMC 2-1 receives the authentication command packet including the user name and the password registered in the SMC 2-2 transmitted from the remote maintenance console 80, the SMC 2-1 changes the user name and the password of the authentication command packet to the SMC 2-2. 1. Check if it is registered in itself. In this case, the user name and password of the received authentication command packet are
Since it is not registered in SMC2-1, SMC2-
1 is the SMC connected by the SMC connection cable 211
The received authentication command packet is transmitted to 2-2.

When the SMC 2-2 receives the authentication command packet including the user name and the password registered in the SMC 2-2 transmitted from the SMC 2-1, the user name and the password included in the authentication command packet are received. Is registered in the SMC 2-2 itself. The received authentication command packet is SM
Since the user name and password registered in C2-2 are included, the SMC 2-2
An approval response packet in which an internal permission flag for permitting reference from the SMC 2-2 is set, and an ID code specifying the SMC 2-2 set in the SMC 2-2 is set
It is transmitted to the SMC 2-1 via the connection cable 212.

When receiving the acknowledgment response packet transmitted from SMC 2-2, SMC 2-1 recognizes that SMC 2-2 is connected, sets the internal connection flag, and transmits the acknowledgment response packet to the remote maintenance console. 8
Send to 0. The remote maintenance console 80 uses the SMC2-
1 receives an acknowledgment response packet including an ID code specifying the SMC 2-2 transmitted from the server 1-1.
SMC 2-2 that has been determined to be able to refer to the state of
Is stored.

In the same manner as described above, the remote maintenance console 8
0 refers to the SMC2-
3 transmits an approval command packet including the user name and password registered in SMC2-1 to SMC2-1. SMC2
-1 and SMC2-2, SMC2-3 is SM
An approval command packet including the user name and password registered in C2-3 is received.

When the SMC 2-3 receives the approval command packet, the user name and the password included in the received approval command packet are registered in the SMC 2-3. Set an internal permission flag that permits reference, and
I for specifying SMC2-3 set in MC2-3
The acknowledgment response packet in which the D code is set is sent to SMC2-
2 and transmitted to the remote maintenance console 80 via the SMC 2-1. The remote maintenance console 80 determines that it has become possible to refer to the state of the server machine 1-3 by receiving the approval response packet including the ID code identifying the SMC 2-3 transmitted from the SMC 2-1. In addition, the ID code specifying the SMC 2-3 set in the acknowledgment response packet is stored.

When reading the information of the server machine 2-3, the remote maintenance console 80 uses the SMC2 as shown in FIG.
Server machine 1-3 that has set an ID code identifying
Is transmitted to the SMC 2-1. The SMC 2-1 sends an IMC 2-3 identifying the SMC 2-3 transmitted from the remote maintenance console 80.
When a read command packet including the D code is received, the S set in the read command packet is set.
The ID code specifying the MC2-3 is compared with the ID code specifying the SMC2-1 set in the SMC2-1. In this case, the ID code is different and SMC2-2
Since the internal connection flag indicating that is connected is set, the received read command packet is transmitted to the SMC 2-2 via the SMC connection cable 211.

When the SMC 2-2 receives the read command packet including the ID code specifying the SMC 2-3 transmitted from the SMC 2-1, the SMC 2-2 sets the ID specifying the SMC 2-3 set in the read command packet. Code and SMC2 set in SMC2-2
Compare the ID code specifying -2. In this case, ID
Since the code is different and the internal connection flag indicating that the SMC 2-3 is connected is set, the received read command packet is transmitted to the SMC 2-3 via the SMC connection cable 212.

When the SMC 2-3 receives the read command packet including the ID code specifying the SMC 2-3 transmitted from the SMC 2-2, the SMC 2-3 sets the ID specifying the SMC 2-3 set in the read command packet. Code and SMC2 set in SMC2-3
-3 are compared. In this case, ID
Since the codes match and the internal permission flag of reference permission has already been set, the content indicating the state of the server machine 1-3 is set in the read response packet, and the SMC2 is set via the SMC connection cable 212. Send to 2. S
Since the internal connection flag is set, the MC 2-2 transmits a read response packet including the received content indicating the state of the server machine 1-3 to the SMC 2-1 via the SMC connection cable 211.

Since the SMC 2-1 is connected to the modem 4-1, the server 1--1 transmitted from the SMC 2-2.
When the read response packet including the content indicating the status of No. 3 is received, the received read response packet is transmitted to the remote maintenance console 80 via the modem interface 204. The remote maintenance console 80 receives the read response packet including the content indicating the status of the server machine 1-3 transmitted from the SMC 2-1 and acquires a part of the status of the server machine 1-3. The remote maintenance console 80 is an SMC
The read command packet is repeatedly transmitted until the information of the server machine 1-3 that can be collected through the server 2-3 is obtained, and the SMC is transmitted via the SMC 2-1 and the SMC 2-2.
The state of the server machine 1-3 is referred to based on the content set in the read response packet returned from the MC 2-3.

Here, the remote maintenance console 80
By acquiring a part of the state of the server machine 1-3 for one read command packet transmitted from the remote maintenance console 80 and repeatedly transmitting the read command packet from the remote maintenance console 80 to the server machine 1-3, The case where the status of the server 1-3 is referred to has been described, but the configuration is such that all information on the status of the server 1-3 is acquired at once for one read command packet transmitted from the remote maintenance console 80. May be.

Similarly, the remote maintenance console 80 adds the ID specifying the SMC 2-2 to the read command packet.
By setting and transmitting the code, the server machine 1-
2 can be read, and the information of the server 1-1 can be read by transmitting a read command packet in which an ID code specifying the SMC 2-1 is set.

As described above, in the present embodiment, the SMCs 2-1 to 2-n of each of the server machines 1-1 to 1-n connected by the SMC communication interfaces 205 and 206
RAM for registering ID codes specifying 2-1 to 2-n
202 and the remote maintenance console 8 via the modem 4-1
0 and the ID code specifying the SMC2-1 to 2-n transmitted and received and the SMC2-
If the ID codes identifying the items 1 to 2-n match and match, the status information of the corresponding server device 1-1 to 1-n is read, and the read status information of the server device 1-1 to 1-n is read. If there is an SMC connected by the SMC communication interfaces 205 and 206, the data is sent to the remote maintenance console 80 via the SMC and the modem 4-1. All server machines 1-1 to 1-1 installed in site 1
−n can be remotely maintained through one public line 61, 83 with a single connection. For this reason, every time an operator or a maintenance worker working on the remote maintenance console 80 changes the server to be maintained, the remote maintenance console 8
Disconnection and reconnection of the communication path between 0 and the SMC can be avoided, so that the time required for maintenance can be shortened, and a connection operation error can be prevented.

In the fourth embodiment, the SMCs 2-1 to 2-n having the configuration shown in FIG.
Embodiment 1 by replacing SMC with the configuration shown in FIG.
In the second embodiment, the SMC 2-1 to 2-n having the configuration shown in FIG. 2 of the second embodiment shown in FIG. 2 is replaced with the SMC having the configuration shown in FIG. The SMC 2-1 to 2-n of the configuration of FIG. 2 shown in FIG. 4 of the third embodiment may be applied to the SM
It may be configured in place of C and applied to the third embodiment.

Embodiment 5 FIG. 7 is a block diagram showing a configuration of a remote maintenance management system for a server according to a fifth embodiment of the present invention. 7, the same reference numerals as those in FIG. 1 indicate the same or corresponding parts, and reference numerals 221 to 22n-1 denote pass-through cables. FIG. 8 is a block diagram showing the configuration of each SMC shown in FIG. 8, the same reference numerals as those in FIG. 2 denote the same or corresponding parts, and 207 denotes a pass-through interface.

In this embodiment, each of the servers 1-1 to 1-n installed in the same computer site 1 has a built-in server to monitor server status, collect fault information, execute diagnosis,
SMC2 for power on / off, reset, etc.
Modems for connecting to the modem 4-1
Interface 204 and modem interface 20
4, a pass-through interface 207 for transmitting the information received to the SMC of another server is provided, and the modem interface 204 of the SMC 2-1 of the first server 1-1 is connected to the modem 4-1. At the same time, the pass-through interface 207 of the SMC 2-1 of the server machine 1-1 is connected to the modem interface 204 of the SMC 2-2 of the server machine 1-2, and the SMC2 of the server machine 1-2 is connected.
-2 pass-through interface 207 to server machine 1
-3 is connected to the modem interface 204 of the SMC 2-3, and similarly each SMC is connected by the pass-through interface 207 and the modem interface 204,
The SMC 2-1 of the server machine 1-1 is connected to the server machine 1-2 installed in the same computer site 1 via the pass-through interface 207 and the modem interface 204.
1-n to communicate with the SMCs 2-2 to 2-n.

As a new configuration, SMC2-1 to 2-n
Outputs a control input signal from the modem 4-1 to another SMC as a control output signal, and outputs a modem control output signal from the other SMC to the modem 4-1 as a control output signal. And a pass-through interface 207 for transmitting data received from the modem 4-1 to another SMC and transmitting data received from the other SMC to the modem 4-1. Reference numerals 221 to 22n denote pass-through cables for connecting the SMC pass-through interface 207 to the SMC modem interface 204 of another server.
Is the same as

Next, the operation will be described. In FIG. 7, a case will be described as an example where the state of the server machine 1-2 is referred to from the remote maintenance console 80. Modem 4-1
Is a function that can control connection control with an AT command, and, when a communication path is established or a communication path is disconnected, notifies a device to which the modem 4-1 is connected by a data string called a result code to that effect. With a modem. First, from the remote maintenance console 80 to the modem cable 82 and the modem 8
1, communication lines of the public line 83, the public line network 6, the public line 61, the modem 4-1, the modem cable 41, and the SMC 2-1 are established.

Next, the remote maintenance console 80 checks the communication path in which the authentication command packet including the user name and the password registered in the SMC 2-2 has been established in order to view the contents of the server machine 1-2. To the SMC 2-1. The SMC 2-1 uses the remote maintenance console 80
Receives the authentication command packet including the user name and password registered in SMC 2-2 transmitted from the server, determines whether the user name and password of the authentication command packet are registered in SMC 2-1 itself. Check. In this case, the user name and the password included in the received authentication command packet are not registered in the SMC 2-1, and the pass-through interface 207 is connected to the SMC 2 through the pass-through cable 221.
SMC 2-1 simulates the operation of the modem 4-1 and changes the state of the control output signal to the pass-through interface 207 through the modem 4-1. In addition to the state at the time of establishment, the data string transmitted by the modem 4-1 when the communication path is established is transmitted to the pass-through interface 207.

Further, the SMC 2-1 transmits to the pass-through interface 207 an authentication command packet containing the user name and password registered in the SMC 2-2 received from the remote maintenance console 80 via the modem interface 204. After this, SMC2-1
Copies the state of the control input signal from the modem interface 204 to the control output signal to the pass-through interface 207 and the state of the control input signal from the pass-through interface 207 to the control output signal to the modem interface 204, respectively. I do. Also, SMC2
-1 transmits the data received from the modem interface 204 to the pass-through interface 207 as it is, and transmits the data received from the pass-through interface 207 to the modem interface 204 as it is.

The pass-through interface 207 of the SMC 2-1 is connected to the SMC 2- through the pass-through cable 221.
2 is connected to the modem interface 204, the SMC 2-2 receives the data string transmitted by the SMC 2-1 at the time of establishing the communication path, and as if the modem 4
It recognizes that a communication path with the remote maintenance console 80 has been established via the communication line 1. Thus, SMC2-2, pass-through cable 221, SMC2-1, modem cable 4
1, a communication path of the modem 4-1, the public line 61, the public line network 6, the public line 83, the modem 81, the modem cable 82, and the remote maintenance console 80 is established.

Next, the SMC 2-2 receives the authentication command packet transmitted from the SMC 2-1 and containing the user name and the password registered in the SMC 2-2.
The received authentication command packet including the user name and the password registered in SMC2-2 is transmitted to SMC2-
SMC 2-2 sets the internal permission flag for permitting reference from the remote maintenance console 80, and sets the communication path in which the acknowledgment response packet has been established. And sends it to the remote maintenance console 80. When the acknowledgment response packet transmitted from the SMC 2-1 is received by the remote maintenance console 80, the remote maintenance console 80 sets the server 1-2.
It is determined that it is possible to refer to the status of the server device 1-2, and a read command packet for reading the status of the server device 1-2 is transmitted via the established communication path to the SMC 2-2.
Send to

The SMC 2-2 receives the read command
When the packet is received, since the internal permission flag of reference permission has already been set, the content indicating the state of the server 1-2 is set in the response packet, and the remote maintenance console 80 is set via the established communication path. Send to The remote maintenance console 80 repeatedly transmits the read command packet until the acquisition of the information of the server machine 1-2 that can be collected via the SMC 2-2 is completed.
Server machine 1 specified by read command packet
2 is set in the response packet and returned. Thus,
The status of the server machine 1-2 is referred to from the remote maintenance console 80.

In this case, the remote maintenance console 80
By acquiring a part of the state of the server machine 1-2 for one read command packet transmitted from the remote maintenance console 80 and repeatedly transmitting the read command packet from the remote maintenance console 80 to the server machine 1-2, The case where the status of the server machine 1-2 is referred to has been described, but the configuration is such that all information on the status of the server machine 1-3 is acquired at once for one read command packet transmitted from the remote maintenance console 80. May be.

When referring to the status of the server machine 1-3, the remote maintenance console 80 and the SMC 2-3 communicate with each other via the SMC 2-1 and SMC 2-2, and the status of the server machine 1-4 is referred to. , The remote maintenance console 80 and the SMC 2-4 communicate via the SMC 2-1 and the SMC 2-2 and the SMC 2-3. Similarly, from the remote maintenance console 80, the server machines 1-1 to 1-1-
n information can be referred to.

As described above, in the present embodiment, the S of each of the server machines 1-1 to 1-n installed in the same computer site 1
A modem interface 204 connected to the modem 4-1 and a modem interface 2 are connected to the MCs 2-1 to 2-n.
04, the information received in SMC2-
2 is provided, the modem interface 204 of the SMC 2-1 of the server machine 1-1 is connected to the modem 4-1 and the pass-through interface 207 of the SMC 2-1 of the server machine 1-1 is connected. Connected to the modem interface 204 of the SMC 2-2 of the server 1-2, and connected to the SMC of the server 1-2.
The 2-2 pass-through interface 207 is replaced with the modem interface 204 of the SMC 2-3 of the server machine 1-3.
When the server machines 1-4 to 1-n are located downstream of the server machine 1-3 on the opposite side of the modem 4-1, the SMCs 2-4-2 to 2-n are connected to the pass-through interface 207 in the same manner. To the SMC 2-1 of the server machine 1-1 via the pass-through interface 207 and the modem interface 204.
Server machines 1-2 to 1 installed in the same computer site 1
-N SMC 2-2 to 2-n, so that one public line 6
1, 83 and one modem 4-1, all the servers installed in the same computer site 1 can be maintained, and the number of interfaces to be provided in each SMC can be reduced. it can.

In the fifth embodiment, the SM of each of the server devices 1-1 to 1-n connected by the pass-through interface 207 and the modem interface 204 is used.
C2-1 to 2-n are stored in the RAM 202 for registering an ID code that specifies the SMCs 2-1 to 2-n, and the S transmitted and received from the remote maintenance console 80 via the modem 4-1.
ID code for specifying MC2-1 to 2-n and RAM 20
ID that specifies SMC2-1 to 2-n read out from 2
If the codes are compared and they match, the corresponding server machine 1-
The status information of the server devices 1-1 to 1-n is read out, and if there is an SMC connected by the pass-through interface 207 and the modem interface 204, the read status information of the server machine 1-1 to 1-n is passed through the SMC. , Modem 4-
1 may be transmitted to the remote maintenance console 80. In this case, from the remote maintenance console 80, all the server machines 1-1 to 1-n installed in the same computer site 1 can be remotely maintained by one connection via one public line 61, 83. can do. Therefore, every time the operator or the maintenance staff working on the remote maintenance console 80 changes the server to be maintained, the communication path between the remote maintenance console 80 and the SMC does not need to be disconnected and reconnected. In addition, the time required for maintenance can be reduced, and a connection operation error can be prevented.

[0078]

According to the first aspect of the present invention, the server management device of each server machine installed at the same computer site has:
A modem interface for connecting to the modem and a communication interface between the server management devices for communicating with the server management devices of the other two server devices are provided, and the server management device of the first server device is connected to the modem. The server management device of the second server is connected to the server management device of the second server by the communication interface between the server management devices.
If the server management device of the server device is connected by a communication interface between the server management devices, and the server device is located downstream of the third server device on the opposite side of the modem, the connection is performed in the same manner, and the first server device is connected. Is configured to communicate with a server management device of a server machine installed in the same computer site via a communication interface between the server management devices, so that one public line can be connected from the remote maintenance console. Can be connected to all the servers installed in the same computer site via a single modem and can be maintained, so connect a modem to each installed server and separate the public line In addition to reducing the labor and cost for installation, and reducing the basic cost of the public line to only one line. There is an effect that it is possible to suppress the increase of the cost for the duck maintenance. Further, since it is not necessary to install devices such as a private exchange and a switching device, there is an effect that a remote maintenance system can be realized at low cost and in a small space.

According to a second aspect of the present invention, in the server remote maintenance management system according to the first aspect, the server management device of the first server is replaced by the server management device of the last server in the connection. Of the servers installed in the same computer site that is remotely maintained from the remote maintenance console via one public line and one modem by connecting via the intercommunication interface, the modem is connected. Even if the server management device of any one of the server management devices of the server devices other than the first server device fails, remote maintenance of the remaining server devices can be performed from the remote maintenance console. There is an effect that remote maintenance can be performed more reliably.

According to the third aspect of the present invention, there are provided the first and second aspects.
In the server remote maintenance management method described above, the server management device of any one of the server machines other than the first server machine installed in the same computer site is replaced with the server management device of the first server machine. Connected to a modem different from the modem connected to the first server, and the line input section of the modem is connected to the telephone output section of the modem connected to the server management device of the first server machine. Even if any one of the server machines installed in the same computer site that is remotely maintained via a single public line from the remote maintenance console fails only by adding one
Since remote maintenance of another server can be performed, there is an effect that remote maintenance can be performed more reliably.

In the invention according to claim 4, claims 1 to 3
In the server remote maintenance management system described above, the server management device of each server connected by the communication interface between the server management devices is connected to the server management device via an ID code registration unit that registers an ID code that specifies the server management device, and a modem. If the ID code specifying the server management device transmitted and received from the remote maintenance console and the ID code specifying the server management device read from the ID code registration unit match and match, the status information of the corresponding server device is read, Server information transmitting means for transmitting the read status information of the server machine to the remote maintenance console via a modem via the server management device if there is a server management device connected by the communication interface between the server management devices; From the remote maintenance console,
All server machines installed in the same computer site
Since remote maintenance can be performed with a single connection via the public line of the book, every time the operator or maintenance staff working on the remote maintenance console changes the server to be maintained,
This eliminates the need to disconnect and reconnect the communication path between the remote maintenance console and the server management device, shortening the time required for maintenance, and preventing connection mistakes. There is.

According to a fifth aspect of the present invention, there is provided a server management device of each server machine installed at the same computer site, wherein a modem interface for connecting to a modem and information received by the modem interface are transmitted to a server of another server machine. A pass-through interface for transmitting to the management device is provided, a modem interface of the server management device of the first server device is connected to the modem, and a pass-through interface of the server management device of the first server device is connected to the second server device. Connected to the modem interface of the server management device of
The pass-through interface of the server management device of the second server is connected to the modem of the server management device of the third server.
Interface and the third side opposite the modem
If there is a server machine after the server machine, the server management devices are connected by a pass-through interface and a modem interface in the same manner, and the server management device of the first server machine is connected to the pass-through interface and the modem interface. To communicate with a server management device of a server machine installed in the same computer site via the remote maintenance console, through one public line and one modem from the remote maintenance console. Can be maintained, and the number of interfaces to be provided in each server management device can be reduced.

According to a sixth aspect of the present invention, in the server remote maintenance management system according to the fifth aspect, the server management device of each server connected via the pass-through interface and the modem interface is specified. I
The ID code registration means for registering the D code is compared with the ID code for specifying the server management apparatus transmitted and received from the remote maintenance console via the modem and the ID code for specifying the server management apparatus read from the ID code registration means. If they match, the status information of the corresponding server is read, and the read status information of the server is
If there is a server management device connected by an interface and a modem interface, the server management device is configured to have server information transmission means for transmitting to the remote maintenance console via the modem via the server management device, if any.
Remote maintenance can be performed with a single connection via a single public line, so each time an operator or maintenance person working on the remote maintenance console changes the server to be maintained, the remote maintenance console and the server are updated. It is possible to avoid disconnection and reconnection of the communication path between the management devices, thereby reducing the time required for maintenance, and preventing connection operation errors and the like.

[Brief description of the drawings]

FIG. 1 is a block diagram showing a configuration of a remote maintenance management system for a server according to a first embodiment of the present invention.

FIG. 2 is a block diagram showing a configuration of each SMC shown in FIG.

FIG. 3 is a block diagram showing a configuration of a remote maintenance management system for a server according to a second embodiment of the present invention.

FIG. 4 is a block diagram showing a configuration of a remote maintenance management system for a server according to a third embodiment of the present invention.

FIG. 5 is a block diagram illustrating a configuration of a server management device according to a fourth embodiment of the present invention.

FIG. 6 is a diagram showing an example of a read command packet used in a remote maintenance management system of a server according to a fourth embodiment of the present invention.

FIG. 7 is a block diagram showing a configuration of a remote maintenance management system for a server according to a fifth embodiment of the present invention.

FIG. 8 is a block diagram illustrating a configuration of each SMC illustrated in FIG. 7;

FIG. 9 is a block diagram showing a configuration of a conventional remote maintenance management system for a server.

FIG. 10 is a block diagram showing a configuration of another conventional server remote maintenance management system.

[Explanation of symbols]

1 computer site, 1-1 to 1-n server machine, 2-1
~ 2-n SMC (server management device), 4-1 and 4-
2,81 modem, 4-1a telephone output unit, 4-2
a line input unit, 6 public line network, 41, 42, 82
Modem cable, 61,83 public line, 202 RA
M, 204 Modem interface, 205, 206
SMC interface, 207 pass-through interface, 211-21n-1, 21n SMC connection cable, 221-2n-1 pass-through cable.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) G06F 11/28-11/36 G06F 13/00

Claims (6)

(57) [Claims] 1. A remote maintenance console for performing maintenance remotely.
Connected via a modem, the server management device of each server installed at the same computer site has its own user ID and
To store passwords, connection flags, and permission flags
Means, a modem interface for connecting to the modem, and a communication interface between server management devices for communicating with a server management device of another server device. The server management device of the first server device is connected via the modem interface. A modem is connected to the server management device of the second server via a communication interface between the server management devices, and the server management device of the second server and the server management device of the third server are connected between the server management devices. When the server is connected by a communication interface and the server is located downstream of the third server on the opposite side of the modem, the respective server management devices are connected in the same manner by the communication interface between the server management devices, and the first server Of the server machines installed at the same computer site via the server management apparatus communication interface. The server management device is configured to communicate with the server management device.
User ID and password registered to the user
If it is, set the permission flag in the storage means and send a response.
Send to the above remote maintenance console and register
And the response is not
Received from another server management device via the interface
Set the above connection flag and send the response to the server management
To another device via a communication interface between server management devices
The server management device that sent the message and set the connection flag
Via the remote maintenance console and the permission flag set
A remote maintenance management system for a server , wherein communication is performed with a server management device . 2. The server remote maintenance management system according to claim 1, wherein the server management device of the first server is connected to the server management device of the last server in the connection by a communication interface between the server management devices. A remote maintenance management system for servers. 3. A remote maintenance system server according to any one of claims 1 to 2, of the first server device other than the server computer installed in the same computer in the site, either the server machine The server management device is connected to a modem different from the modem connected to the server management device of the first server, and a line input unit of the modem is connected to the server management device of the first server. A remote maintenance management system for a server, which is connected to an output unit for a telephone of a modem. 4. A remote maintenance management system server according to any one of claims 1 to 3, the server management device of the server machines connected between the server management apparatus communication interface, identify the server management device ID ID code registration means for registering a code, and an ID code for specifying a server management device transmitted and received from a remote maintenance console via a modem.
If the D code and the ID code for identifying the server management device read out from the ID code registration means are compared and matched,
Reads the status information of the corresponding server machine, and if there is a server management device connected via the server management device communication interface, remotely maintains the read status information of the server machine via the server management device and a modem. And a server information transmitting means for transmitting to a console. 5. A remote maintenance console for performing remote maintenance.
Connected via a modem, the server management device of each server installed at the same computer site has its own user ID and
To store passwords, connection flags, and permission flags
Means, a modem interface for connecting to the modem, and a pass-through interface for transmitting information received by the modem interface to a server management device of another server machine. The interface is connected to the modem, the pass-through interface of the server management device of the first server is connected to the modem interface of the server management device of the second server, and the pass-through interface of the server management device of the second server is connected. When the interface is connected to the modem interface of the server management device of the third server device, and the server device is located downstream of the third server device on the opposite side to the modem, the server management device is similarly connected to the pass-through interface. And the modem interface, and the server of the first server machine The management device is configured to communicate with a server management device of a server machine installed at the same computer site via a pass-through interface and a modem interface, and the server management device is designated from a remote maintenance console. Sa
User ID and password registered to the user
If it is, set the permission flag in the storage means and send a response.
Send to the above remote maintenance console and register
Pass-through interface with no response
Connection from another server management device via
Set a flag and model the response to the server management device on the other side.
Transmitted via the system interface, after which the connection flag
Remote maintenance control via the server management device
Between the console and the server management unit with the permission flag set
A remote maintenance management system for a server, characterized in that communication is performed by a server. 6. The server remote maintenance management system according to claim 5, wherein the server management device of each server machine connected by the pass-through interface and the modem interface registers an ID code for specifying the server management device.
D code registration means and an ID for identifying the server management device transmitted and received from the remote maintenance console via the modem
If the code and the ID code for identifying the server management device read from the ID code registration means match, the status information of the corresponding server device is read, and the read status information of the server device is transmitted to the pass-through interface and the modem. A server information transmitting means for transmitting, via a modem, to a remote maintenance console via a server management device when there is a server management device connected by an interface;