JP2005018384A - Information processing system - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an information processing system in which an uninterruptible power supply unit and a plurality of servers directly communicate with each other, and all the servers are automatically shut down in power failure, and the shut down is confirmed to safely stop power supply. <P>SOLUTION: This information processing system is provided with a plurality of servers connected through a network, to which a power is supplied from an uninterruptible power supply unit equipped with a network interface, and each of the plurality of servers is provided with a monitoring process for monitoring the uninterruptible power supply unit, and when the power failure of a commercial power source connected to the uninterruptible power supply unit is detected by each monitor process after the lapse of a predetermined time, each of those servers is shut down after batch processing. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an information processing system of a plurality of servers which are supplied with power from an uninterruptible power supply and connected via a network, and particularly relates to an information processing system protected against a power failure.
[0002]
[Prior art]
The information processing system executes various programs and provides various functions to the user. However, when a power failure occurs, there is a possibility of program destruction or hardware failure, and an uninterruptible power supply is installed to protect against such a power failure.
In this small protection system, one uninterruptible power supply (UPS) backs up one server, and connects between them using RS232C level signals to exchange operating status information. . The uninterruptible power supply monitoring process provided in the server constantly monitors the operating state of the uninterruptible power supply, and shows a technique for shutting down the server when a commercial power failure continues for a certain period (for example, Patent Documents). 1).
In a medium-sized system where one uninterruptible power supply backs up several information processing devices such as a client server system, the server and the uninterruptible power supply are connected one-to-one using a dedicated communication line. Then, communication is performed using an RS232C level signal.
[0003]
[Patent Document 1]
JP-A-2002-297270 [0008] column, FIG.
[0004]
[Problems to be solved by the invention]
In the conventional small-scale system disclosed in Patent Document 1 and the medium-scale system, small uninterruptible power supply units are distributed and installed in each system. However, recent server systems have increased in capacity and scale. The server system has been increasingly installed in a dedicated server room. Along with this, there is an increasing number of systems for centrally backing up a large number of servers with one large uninterruptible power supply. In such a large-scale system, the server room and the uninterruptible power supply room are often far away from each other, and there is a problem that the conventional technique using the RS232C level signal cannot cope with the problem. Also, if the server is stopped for some reason, the client computer connected to it cannot be shut down, and in the power supply stop processing after server shutdown, the uninterruptible power supply directly shuts down the server that is communicating Although it can be monitored, the state of the client computer cannot be monitored, so there is a problem that the power supply stop process cannot be performed in a safe state.
[0005]
The present invention has been made to solve the above-described problems, and the uninterruptible power supply and a plurality of servers can directly communicate with each other, and all servers are automatically shut down and confirmed in the event of a power failure. An object of the present invention is to provide an information processing system capable of safely stopping power supply.
[0006]
[Means for Solving the Problems]
An information processing system according to the present invention is provided with power from an uninterruptible power supply device provided with a network interface unit, and includes a plurality of servers connected via a network. Each of the servers is shut down after batch processing when a power failure of the commercial power source connected to the uninterruptible power supply is detected after a predetermined time. is there.
[0007]
The network interface unit is provided with setting means for enabling / disabling power supply, and a plurality of servers are provided with a monitoring process for monitoring the uninterruptible power supply. When a commercial power failure connected to the power failure power supply is detected after a lapse of a predetermined time, each of the multiple servers shuts down after batch processing, and the network interface unit is powered by the power supply stop valid / invalid setting means. When the stop is validated, it is instructed to stop the power supply from the battery provided in the uninterruptible power supply after confirming that all of the plurality of servers are shut down.
[0008]
Furthermore, the network interface unit manages the number of servers, and does not start the monitoring process when the number of software modules in the monitoring process exceeds the number of contracts.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiment 1 FIG.
Embodiment 1 of the present invention will be described below with reference to the drawings.
FIG. 1 is a block diagram showing an information processing system according to the first embodiment. In the figure, an uninterruptible power supply (UPS) 1 supplies power to n servers 2a to 2n (SV1 to SVn) via a power line 5. The uninterruptible power supply 1 is provided with a network interface unit 11 and is provided with a LAN card mounted with TCP / IP, and is connected to the servers 2 a to 2 n via the network 6. Each of the servers 2a to 2n is provided with a monitoring process 21 for monitoring the uninterruptible power supply 1. In addition, a client computer (not shown) is connected to each of the servers 2a to 2n. The uninterruptible power supply 1 is supplied with power from the commercial power supply 4.
[0010]
Next, the operation will be described with reference to the flowchart shown in FIG. In S10, the monitoring process 21 of the uninterruptible power supply (hereinafter abbreviated as UPS) 1 provided in each of the servers 2a to 2n transmits a polling command to the UPS 1 at a predetermined cycle. The network interface unit (LAN card) 11 of the UPS 1 receives the command in S20, transmits the operating state information of the UPS 1 in S22, and each monitoring process 21 receives the information in S11. Here, the polling interval is always 5 seconds.
When a power failure occurs in the commercial power supply 4, the UPS 1 is switched to battery operation and supplies power to the servers 2a to 2n. In S30, the UPS 1 detects a power failure of the commercial power supply 4, transmits the information to each monitoring process 21, and receives the power failure information in S11. When the power recovery waiting time (T1) or more elapses in S12 and S13, the servers 2a to 2n that are operated by power supply from the battery provided in the UPS 1 shift to the batch processing of S14. The power recovery waiting time (T1) is set to the same value in all the servers 2a to 2n. This is to avoid a mixture of servers that are shut down and servers that are not shut down depending on the power recovery timing.
[0011]
The batch processing in S14 is continued even if the commercial power source 4 is restored. As the batch processing of S14, application termination processing such as a database and shutdown processing of the client computer are incorporated. Next, OS shutdown is executed in S16, and the servers 2a to 2n are stopped.
As described above, in the first embodiment, each server 2a to 2n is provided with the monitoring process 21 of the UPS 1, and directly communicates with the UPS 1 so as to check its operation state. You can shut down independently without being affected by the situation. As the network 6 shown in FIG. 1, an existing network environment can be used, and there is no need to install a new communication cable.
[0012]
Embodiment 2. FIG.
The second embodiment will be described with reference to the drawings. In the second embodiment, an entry table 111 is provided in the network interface unit 11 provided in the UPS 1 of the system configuration diagram shown in FIG. This entry table 111 is a table in which the IP addresses of all the servers 2a to 2n are registered.
In addition, a step 21 for newly registering / deleting a server entry and a step 31 for automatically transmitting power failure occurrence information to all the servers registered in the entry table 111 are provided in the flowchart of FIG. It was. A flowchart of the second embodiment is shown in FIG.
FIG. 4 shows details of the step 21 for registering / deleting the server entry shown in FIG. FIG. 5 shows a schematic structure of a TCP / IP packet of a command transmitted from each of the servers 2 a to 2 n to the UPS 1 and the entry table 111.
[0013]
Next, the operation will be described with reference to FIGS. Note that the omitted steps are the same as those in the first embodiment. When the interface network unit 11 receives the polling command transmitted from each of the servers 2a to 2n in S20 of FIG. 4, the same IP address as the transmission source IP address of the IP header unit shown in FIG. 5 is entered in S212. If it is not registered in the table 111, the source IP address is registered in the entry table 111 in S213. Here, the polling interval is 1 minute.
Next, the timer management job in S215 provides an accumulation counter for each entry to monitor the reception status of the polling command. If the polling command is not received for a predetermined time (in this case, 1 minute), the time is over in S216. As a process, the IP address of the corresponding server is deleted from the entry table 111. When a polling command is received from the normal server (S20), the timer is reset at step 214, and the integration counter is set to zero.
[0014]
Next, in FIG. 3, when the network interface unit 11 detects a power failure in S30, the power failure occurrence information is automatically transmitted to all the servers registered in the entry table 111 in S31.
When the monitoring process 21 of each of the servers 2a to 2n receives the power failure occurrence information at S11 and detects a power failure at S21, the period for transmitting the polling command (S10) only during that period is shortened from a predetermined one. Here, the predetermined polling interval of 1 minute is shortened to 5 seconds. When power is restored within the power recovery waiting time T1, the polling interval is returned to a predetermined one minute. The other steps shown in FIG. 3 are the same as those in the first embodiment, and a description thereof will be omitted.
[0015]
As described above, in the second embodiment, the server entry registration / deletion step is provided in S21 shown in the flowchart of FIG. 3 so that the entry table is automatically updated. Since transmission can be performed and the polling interval of 5 seconds in the first embodiment can be extended to 1 minute, the amount of network information can be reduced.
Further, when the server is started, an entry is automatically registered by S213 shown in FIG. 4, and when the server is stopped, the entry is automatically deleted by S215 and S216. Therefore, when the system of the second embodiment is introduced and Labor savings can be achieved when installing or relocating servers during system operation.
[0016]
Embodiment 3 FIG.
A third embodiment will be described with reference to FIGS. The third embodiment is obtained by adding S50 shown in FIG. 6 to the flowchart of the second embodiment described above. S50 is a process of stopping power supply from the UPS 1 after all servers are shut down. FIG. 7 shows details of the step 21 for registering / deleting the server entry shown in FIG. 6, and the step 211 for judging the type of command is provided in the flow of the second embodiment. . FIG. 8 is a time chart showing an operation example of the commercial power supply 4 and each of the servers 2a to 2n from a power failure to power supply stop.
[0017]
Next, the operation will be described with reference to FIGS. In addition, what abbreviate | omitted description of each step as described in a flowchart figure is the same as Embodiment 1 and 2 mentioned above. When all the servers 2a to 2n complete batch processing in S14 shown in FIG. 6, an entry deletion request command is transmitted to UPS 1 in S15. When the network interface unit 11 determines that the transmission command is an entry deletion request command as shown in S211 of FIG. 7, the network interface unit 11 deletes the IP address of the transmission source server from the entry table 111 in S216. If the power supply stop setting after the server shutdown in S32 shown in S50 of FIG. 6 is valid, the entry deletion request command is received from all the servers 2a to 2n, and the entry table 111 is emptied in S33. After the elapse of the power supply stop waiting time (T2) in S34, a power supply stop command is transmitted to the UPS1 main body in S35, and the UPS1 stops power supply by the battery in S41. The power supply stop waiting time (T2) is a time that satisfies the following condition. That is, the power supply stop waiting time (T2)> the OS shutdown time of the longest server.
[0018]
Next, the operation will be described with reference to FIG. As shown in S13 and S14 of FIG. 6 described above, when the power failure of the commercial power source 4 continues for the power recovery waiting time (T1) or longer, the servers 2a to 2n start batch processing all at once. Here, when the batch process (S14) of the server 2n ends, the entry table becomes empty, and the power supply is stopped after the power supply waiting time (T2) (S41). T2 is set to a value longer than the OS shutdown time of the server 2n.
As described above, in the third embodiment, as shown in S15 of FIG. 6, the step of transmitting the entry deletion request command is provided, and the entry is deleted from the entry table immediately before the OS starts shutdown. The network interface unit 11 in the UPS 1 can confirm the shutdown state of each of the servers 2a to 2n only by monitoring the state of the entry table, and can stop the power supply in a safe state.
Furthermore, if the program hangs up during batch processing for some reason, the entry of the corresponding server is not deleted, so power supply continues and operates on the fail-safe side, so that a safer information processing system can be obtained. .
[0019]
Embodiment 4 FIG.
The fourth embodiment will be described with reference to the drawings. The fourth embodiment is the same as the third embodiment described above, except that the server is shut down while the commercial power supply 4 is out of power, and the UPS 1 is automatically powered when the commercial power supply 4 is restored with the power supply stopped in the UPS1 power supply stop state. FIG. 9 shows the flow. In the UPS 1 according to the fourth embodiment, automatic power supply valid / invalid setting means and battery charge state confirmation valid / invalid setting means are provided. If the automatic power supply setting is invalid in S60 shown in FIG. 9, the process ends without supplying power. Next, when the automatic power supply setting is valid in S60, the battery charge state confirmation setting is confirmed in S61. If invalid, power supply is immediately started in S63, while if valid in S61, S62, As shown in S63, power supply is started after the battery is fully charged.
[0020]
As described above, in the fourth embodiment, as shown in FIG. 9, since the automatic power supply setting step of S60 is provided, the information processing system provided with an uninterruptible power supply apparatus that adapts to the system operation method. Can be obtained. For example, in a system that is automatically operated by unattended, the setting of the automatic power supply valid / invalid setting means is valid, and in a system in which a system administrator is stationed and a manual operation plan is decided, the setting is invalidated. Therefore, it can correspond to various systems. Furthermore, since the battery charge state confirmation process (S62) is provided, power supply can be started in a state where the battery is fully charged, so that a power failure occurs again during the charge and the shutdown of the server is completed. The problem that the battery capacity is emptied before can be eliminated, and a system with improved reliability can be obtained.
[0021]
Embodiment 5 FIG.
The fifth embodiment will be described with reference to the drawings. FIG. 10 shows the operation of the startup script of the monitoring process 21 of the UPS 1 according to the first embodiment. The module of the monitoring process 21 and the startup script are stored in the same software package, and are deployed on the servers 2a to 2n with dedicated installation software. Further, the network interface unit 11 of the UPS 1 is provided with an ID code corresponding to the number of software contracts. The ID code is a unique code encrypted for each MAC address of the LAN card of the network interface unit 11.
[0022]
Next, the operation will be described. The UPS management process startup scripts of the servers 2a to 2n are executed when the servers 2a to 2n are restarted. When the UPS management process activation script is executed, an activation permission request is transmitted to the network interface unit 11 of the UPS 1 in S70. The network interface unit 11 of the UPS 1 compares the number of software contracts with the current number of server entries as shown in S80 to S84. If the number of server entries is smaller, the network interface unit 11 gives a start permission and the number of server entries is larger. In the case of sending activation rejection. As shown in S71 to S74, the UPS management process activation script of the servers 2a to 2n receives a response from the network interface unit 11, and activates the monitoring process 21 if the result is permitted, and a warning message if denied. Is displayed and the process ends.
[0023]
As described above, in the fifth embodiment, since the number of software contracts is compared with the current number of server entries as shown in S81 of FIG. 10, the network interface unit collectively collects the software licenses of the servers 2a to 2n. Since the usage status can be confirmed, it is possible to prevent the use of software outside the contract. Even when a new software contract needs to be added during system operation, it can be easily handled by simply setting a new ID code in the network interface unit 11.
[0024]
【The invention's effect】
Since the present invention is an information processing system configured as described above, the following effects can be obtained.
A power supply is supplied from an uninterruptible power supply with a network interface unit, and a plurality of servers connected by a network are provided. The plurality of servers are provided with a monitoring process for monitoring the uninterruptible power supply. When each of the monitoring processes detects a power failure of the commercial power supply connected to the uninterruptible power supply after a predetermined time has elapsed, each of the multiple servers shuts down after batch processing. Since the process directly communicates and confirms the operation state, each server has an excellent effect that it can be shut down without being affected by the operation status of other servers.
[0025]
In addition, the network interface section is equipped with a power supply stop valid / invalid setting means, and each of the monitoring processes of multiple servers detects a power failure of the commercial power supply connected to the uninterruptible power supply after a predetermined time. Multiple servers shut down after batch processing, and the network interface unit shuts down all of the multiple servers when the power supply stop valid / invalid setting means enables power supply stop. After confirming that, the power supply from the battery installed in the uninterruptible power supply is instructed to stop, and the power failure occurrence information can be automatically sent to the server, so the polling interval can be extended and the amount of network information Reduction can be achieved. In addition, it is possible to save labor when installing a system or installing or moving a server in operation.
[0026]
Furthermore, the network interface unit manages the number of servers, and does not start the monitoring process when the number of software modules in the monitoring process exceeds the number of contracts. It is possible to prevent the use, and it has an excellent effect that it can easily cope with new addition of software during system operation.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing an information processing system according to first to fifth embodiments of the present invention.
FIG. 2 is a flowchart showing the operation of the first embodiment of the present invention.
FIG. 3 is a flowchart showing the operation of the second embodiment of the present invention.
FIG. 4 is a flowchart showing details of the server entry registration / deletion operation according to the second embodiment of the present invention.
FIG. 5 is a diagram schematically showing the configuration of a second embodiment of the present invention.
FIG. 6 is a flowchart showing the operation of the third embodiment of the present invention.
FIG. 7 is a flowchart showing details of operation of server entry registration / deletion according to Embodiment 3 of the present invention;
FIG. 8 is a chart showing timing in the third embodiment of the present invention.
FIG. 9 is a flowchart showing automatic power feeding according to the fourth embodiment of the present invention.
FIG. 10 is a flowchart showing the operation of the fifth embodiment of the present invention.
[Explanation of symbols]
1 uninterruptible power supply, 2a-2n server, 4 commercial power supply,
6 network, 11 network interface part,
21 Monitoring process, 111 entry table.

Claims (5)

An information processing system that is supplied with power from an uninterruptible power supply device provided with a network interface unit and includes a plurality of servers connected via a network, the plurality of servers including the uninterruptible power supply device When each of the plurality of monitoring processes detects a power failure of a commercial power source connected to the uninterruptible power supply after a predetermined time, each of the plurality of servers is shut down after batch processing. An information processing system characterized by An information processing system including a plurality of servers that are supplied with power from an uninterruptible power supply device provided with a network interface unit and connected via a network, wherein the network interface unit includes the plurality of servers An entry table for registering / deleting the IP address of the uninterruptible power supply is provided, a monitoring process for monitoring the uninterruptible power supply is provided in the plurality of servers, and the network interface unit is connected to the uninterruptible power supply. When a power failure of a connected commercial power source is detected, power failure occurrence information is notified to all of the plurality of servers registered in the entry table, and when a power failure is detected, the monitoring process polls at a period shorter than a predetermined interval. Send a command and detect power recovery within the power recovery wait time. Information processing system and transmitting back of the polling command cycle intervals. An information processing system that is supplied with power from an uninterruptible power supply device provided with a network interface unit and includes a plurality of servers connected by a network, wherein the network interface unit includes An invalid setting means is provided, and the plurality of servers are provided with a monitoring process for monitoring the uninterruptible power supply, and each of the monitoring processes is connected to the uninterruptible power supply. Are detected after a lapse of a predetermined time, and the plurality of servers are each shut down after batch processing, and the network interface unit is configured such that the power supply stop valid / invalid setting means enables power supply stop. After confirming that all of the plurality of servers are shut down, The information processing system characterized in that to command to stop power supply from the battery provided in the power supply. The network interface unit of the uninterruptible power supply device is provided with automatic power supply valid / invalid setting means and battery charge state valid / invalid setting means. The power supply of the battery provided in the uninterruptible power supply apparatus When the commercial power supply is restored during the stop, when the automatic power supply valid / invalid setting means of the network interface unit validates the automatic power supply, the battery charge state valid / invalid setting means The information processing system according to claim 3, wherein automatic power feeding is performed after the state is confirmed. An information management system comprising a plurality of servers that are supplied with power from an uninterruptible power supply device provided with a network interface unit and connected via a network, wherein the uninterruptible power supply device includes the plurality of servers The network interface unit manages the number of the plurality of servers, and activates the monitoring process when the number of software modules in the monitoring process exceeds the number of contracts. Information processing system characterized by not performing

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