JP4098004B2 - Power interlock control method - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a power supply interlocking control method capable of performing power supply interlocking control in a computer system, and more particularly to a power supply interlocking control method suitable for power supply control of peripheral devices such as a magnetic disk device connected to a server.
[0002]
[Prior art]
Generally, a computer system includes a central processing unit called a mainframe, a server connected to the central processing unit through a LAN, a plurality of magnetic disk units connected to the server through a LAN, and data from the server and the magnetic disk unit to a power failure. And an uninterruptible power supply that supplies power for a certain period of time to evacuate. The uninterruptible device is connected to each server or magnetic disk device. For example, the device connected to the magnetic disk device saves the data stored in the cache memory of the magnetic disk device to the magnetic disk in the event of a power failure. It is configured to supply power in between, which is called a planned outage. The device that needs to be turned on before the server is started is not limited to the magnetic disk device, but in this specification, a magnetic disk device will be described as a representative example of the peripheral device. .
[0003]
In the LAN system configured as described above, in order for the server to check the connection with the magnetic disk device connected via the LAN, it is necessary to start up the server after the magnetic disk device is powered on. In the prior art, the power is manually turned on from the uninterruptible power supply of the peripheral device of the server after the power is manually turned on from the uninterruptible power supply of the peripheral device such as a magnetic disk device.
[0004]
When the magnetic disk device connected to the mainframe is also used from the server, if the mainframe and magnetic disk device are linked to each other, the power to the disk device is turned off when the mainframe power is turned off. There was also a problem in use from the beginning, and there was also a problem in power-on work systematically.
[0005]
[Problems to be solved by the invention]
In the above-described prior art, since the power is turned on manually, the start-up work is complicated. Especially, when a system failure occurs and the server is restarted after the system has been shut down, the server side uses a peripheral device. There was a problem that the server could not be started until after confirming the power-up of a magnetic disk device by some method. Especially in a large-scale LAN system, power-on work is complicated.
[0006]
The first object of the present invention is to eliminate the above-mentioned problems caused by the prior art. The server is turned on before the server is turned on, and the server is turned on after the peripheral device is turned on. It is to provide a power supply interlocking control method that can be used. In addition to the above object, a second object of the present invention is to provide a power supply interlocking control method capable of stopping the system without any trouble even when a power failure occurs.
[0007]
[Means for Solving the Problems]
To achieve the above object, the present invention provides a server, a plurality of peripheral devices connected to the server via a LAN, a server uninterruptible power supply connected to the server, and a plurality of peripheral devices connected to the plurality of peripheral devices. A power supply interlocking control method in a network system comprising an uninterruptible power supply for peripheral devices,
A plurality of first interfaces for transmitting information between the plurality of uninterruptible power supply units; a second interface for transmitting information between a specific peripheral device and a specific uninterruptible power supply unit; and a plurality of uninterruptible power supply units And a third interface for LAN connection, and when the system power is turned on, the uninterruptible power supply connected to the server is connected to the specific peripheral device uninterruptible power via the first interface or the third interface. A first step of instructing the power supply device to turn on the power supply of the specific peripheral device; and the specific uninterruptible power supply device to the server uninterruptible power supply device triggered by start-up completion signals of a plurality of peripheral devices And a second step of instructing to turn on the server.
[0008]
Furthermore, the present invention provides a server, a plurality of peripheral devices connected to the server via a LAN, a server uninterruptible power supply connected to the server, and a plurality of peripheral devices connected to the plurality of peripheral devices. In a power supply interlocking control method in a network system including a power failure power supply device, a plurality of first interfaces for transmitting information between the plurality of uninterruptible power supply devices, information between a specific peripheral device and a specific uninterruptible power supply device And a third interface for LAN connection of a plurality of uninterruptible power supply devices, and when the system is stopped, the uninterruptible power supply device connected to the server is connected to the first interface or the second interface. Instructing the uninterruptible power supply other than the specific peripheral uninterruptible power supply via the interface 3 to stop the power supply of the connected peripheral device 1 and steps, certain uninterruptible power supply after stopping the power supply of the peripheral device, which comprises a second step of instructing a power down of a specific peripheral device and the second feature.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a power supply interlocking control method according to the present invention will be described with reference to the drawings. FIG. 1 is a diagram showing a schematic configuration of a computer system that is a subject of the present embodiment, FIG. 2 is a diagram for explaining a first power feeding start sequence in the computer system, and FIG. 3 is a second power feeding start in the system. FIG. 4 is a diagram for explaining a sequence, and FIG. 4 is a diagram for explaining a power supply stop sequence in the system.
[0010]
In the computer system shown in FIG. 1, a mainframe 1, a server 2, and a magnetic disk device (RAID) 3 are LAN-connected via a LAN 5, and a server uninterruptible power supply (UPS) 6 is connected to the server 2. An uninterruptible power supply (UPS) 7 for peripheral devices is connected to the magnetic disk device 3, and an uninterruptible power supply (UPS) 8 for peripheral devices is connected to the magnetic disk device 4, and the uninterruptible power supplies Interfaces (I / F) 10 to 12 are provided between the power supply units and between the main frames 1. Further, since the magnetic disk unit 4 is an additional chassis of the magnetic disk unit 3, both of them are interfaces such as SCSI (I / F). ) 14 is provided. Further, the uninterruptible power supply devices 6 to 8 are provided with interfaces 5a to 5c for connecting to the LAN 5, respectively. The system is connected to other servers 20 and 21 and uninterruptible power supply devices 30 and 31 for supplying power to the servers 20 and 21, respectively. The magnetic disk device, the interface, and the like are connected, but are not shown in the figure.
[0011]
Further, the relationship between the uninterruptible power supply 6 and 7 is that the uninterruptible power supply 6 performs server operation, the uninterruptible power supply 7 performs client operation, and the relationship between the uninterruptible power supply 7 and 8 is uninterruptible. The power supply device 7 is set to perform a master operation, and the uninterruptible power supply device 8 is set to perform a slave operation. In the present specification, the magnetic disk device 3 may be referred to as a specific peripheral device, and the uninterruptible power supply 7 may be referred to as a specific uninterruptible power supply.
[0012]
In the computer system configured as described above, in the normal driving state, the uninterruptible power supply 6 is AC power supply 6a to the server 2, the uninterruptible power supply 7 is AC power supply 7a to the magnetic disk 3, and the uninterruptible power supply. When the device 8 performs AC power supply 8a to the magnetic disk device 4, each device operates. For example, the mainframe 1 or the server 2 performs data processing, and the result is transmitted to the connected magnetic disk devices 3 and 4. Operates to store data.
[0013]
<Description of First Power Supply Start Sequence>
In this example, a power supply start sequence when starting up a system including the server 2 and the magnetic disk devices 3 and 4 with the start from the uninterruptible power supply 6 connected to the server 2 will be described with reference to FIG. .
[0014]
First, when the uninterruptible power supply 6 gives a start-up instruction for this system according to an instruction from a scheduler or operator from a monitoring terminal (not shown) (reference numeral 201), the uninterruptible power supply 6 sends this instruction to the interface 10 or the LAN 5a- The uninterruptible power supply 7 connected to the magnetic disk device 3 through 5 to 5b is provided (reference numeral 202), and the uninterruptible power supply 7 receiving this is supplied with AC power to the magnetic disk device 3 connected to itself. 7a (symbol 204) and the uninterruptible power supply 8 of the magnetic disk device 4 connected for expansion are similarly instructed to turn on the power via the interface 11 (symbol 203). The device 8 supplies AC power 8a to the magnetic disk device 4 connected to itself (reference numeral 206). The rise of the magnetic disk device 4 is recognized by the magnetic disk device 3 via the interface 14 (reference numeral 208).
[0015]
When the magnetic disk devices 3 and 4 start up in this way, the completion of the start-up is reported to the uninterruptible power supply 7 by the magnetic disk device 3 using a ready signal via the interface 13 (reference numeral 205).
[0016]
The uninterruptible power supply 7 that has received the start-up completion report from the magnetic disk devices 3 and 4 reports the start-up to the uninterruptible power supply 6 of the server (reference numeral 209), and receives the uninterruptible power supply. The power supply 6 turns on the server 2 (reference numeral 212).
[0017]
As described above, in the power supply interlocking control method according to the present embodiment, the server 2 and the uninterruptible power supply devices 6 to 8 are connected to each other and the uninterruptible power supply devices 6 to 8 are connected to the LAN. When there is an instruction to turn on the power, the uninterruptible power supply 7 connected to the magnetic disk device 3 receives this instruction, confirms the completion of startup of the magnetic disk devices 3 and 4 by a ready signal, and then returns to the server By controlling the output so that the power failure power supply 6 starts up the server 2, the system can be started up automatically.
[0018]
<Description of Second Power Supply Start Sequence>
In this example, a power supply start sequence when starting up a system including the magnetic disk devices 3 and 4 according to an instruction from the main frame 1 will be described with reference to FIG.
[0019]
First, when the main frame 1 issues a start-up instruction (reference numeral 301) of the present system, the main frame 1 issues this instruction to the uninterruptible power supply 7 connected to the magnetic disk device 3 via the interface 12. In response to this, the uninterruptible power supply 7 supplies AC power 7a to the magnetic disk device 3 connected to itself (reference numeral 304), and to the uninterruptible power supply 8 of the magnetic disk device 4 connected for expansion. However, similarly, an instruction to turn on the magnetic disk device 4 (reference numeral 303) is issued via the interface 11, and the uninterruptible power supply apparatus 8 supplies AC power 8a to the magnetic disk apparatus 4 connected to itself (reference numeral 306). . The rise of the magnetic disk device 4 is recognized by the magnetic disk device 3 via the interface 14 (reference numeral 308).
[0020]
When the magnetic disk devices 3 and 4 start up in this way, the magnetic disk device 3 reports the start-up to the uninterruptible power supply 7 by a ready signal via the interface 13 (reference numeral 305).
[0021]
After the start-up, the magnetic disk device 3 is in a state where data can be exchanged with the main frame 1 (reference numeral 315).
[0022]
As described above, in the power supply interlocking control method according to the present embodiment, the interface connecting the server 2 and the uninterruptible power supply devices 6 to 8 and the uninterruptible power supply devices 6 to 8 are LAN-connected, and the mainframe 1 or the server 2 is connected. When an uninterruptible power supply 7 connected to the magnetic disk device 3 receives this instruction and confirms completion of startup of the individual magnetic disk devices 3 and 4 by a ready signal. By controlling the server uninterruptible power supply 6 to start up the server 2, the system can be automatically started up.
[0023]
<Sequence at system stop>
Next, power supply interlocking control in the case where the system is normally stopped in the computer system will be described with reference to FIG. First, it is assumed that a system stop command (reference numeral 400) is issued from the server 2 to the uninterruptible power supply 7 in a state where the mainframe 1, the server 2, and the magnetic disk devices 3 and 4 are up.
[0024]
In the power supply interlocking control method according to the present embodiment, when this system stop command is issued from the server 2 (reference numeral 400), the uninterruptible power supply 7 is connected to the magnetic disk device 3 via the LANs 5b and 5 as shown in FIG. Whether or not the connection between the other servers 20 and 21 has been established is identified, and if the connection with the other server is not established, the planned stop is instructed to the magnetic disk device 3 connected to itself (reference numeral 402) I do. Thereafter, upon receiving a report of the stop of the magnetic disk device 3, the uninterruptible power supply 8 is instructed to stop the power output (reference numeral 403).
[0025]
The uninterruptible power supply 7 that has received the stop report of the magnetic disk device 3 reports this stop to the uninterruptible power supply 6 via the interface cable 10 or the LANs 5a and 5b (symbol 408) and simultaneously to the mainframe 1 as well. A stop report is made via the interface cable 12 (reference numeral 415). The uninterruptible power supply 6 instructs the server 2 to stop processing (reference numeral 410).
If the magnetic disk device 3 or the like is connected to another server 20 or the like despite the stop instruction from the server 2, the uninterruptible power supply device 7 maintains power supply to the magnetic disk devices 3 and 4. .
[0026]
As described above, in the power supply interlocking control method according to the present embodiment, when a certain server is stopped, the uninterruptible power supply 7 serving as a specific master establishes a connection between the magnetic disk device connected to the server and another server. If it is not established, the uninterruptible power supply unit is instructed to use the interface 10 or the LANs 5a to 5c to perform planned shutdown of the connected magnetic disk device, and these magnetic disk devices Is reported to the uninterruptible power supply 6. In addition, when this system receives a stop command from a server having a specific master uninterruptible power supply 7, if the magnetic disk device is connected to another server, The power supply is maintained.
[0027]
In the above-described embodiment, an example has been described in which the uninterruptible power supply 7 performs a stop process in response to an instruction from the server. For example, when a power failure occurs on the server side and a power failure occurs on the magnetic disk device side, In the power supply interlocking control method, the uninterruptible power supply device safely stops the system by controlling the stop of only the server or the planned stop of the magnetic disk device while maintaining power supply to the server and the magnetic disk device for a predetermined time. be able to.
[0028]
【The invention's effect】
As described above, the power supply interlocking control method according to the present invention includes a plurality of first interfaces that transmit information between a plurality of uninterruptible power supply units, a LAN that connects each uninterruptible power supply unit, and a specific peripheral device (for example, A magnetic disk device) and a second interface for transmitting information between a specific uninterruptible power supply, and when the system power is turned on, after the specific uninterruptible power supply turns on a specific peripheral device, Power on other peripheral devices and power on the server after all peripheral devices have been powered on to power on the peripheral device and start the system before powering on the server Can do.
[0029]
Further, according to the present invention, when a power failure occurs in any uninterruptible power supply, the uninterruptible power supply connected to the server or peripheral device in which the power failure occurs is a power failure occurrence information with respect to the other uninterruptible power supply. Is transmitted through the first interface, and the uninterruptible power supply that has received the power outage occurrence information causes the peripheral device connected to the uninterruptible power supply to stop planned and the other uninterruptible power supply apparatus sends the power outage occurrence information to the first power outage. By transmitting via the interface, the system can be safely stopped.
[Brief description of the drawings]
FIG. 1 is a diagram showing a schematic configuration of a computer system as an object of an embodiment of the present invention.
FIG. 2 is a diagram for explaining a first power supply start sequence in the computer system;
FIG. 3 is a view for explaining a second power supply start sequence in the system.
FIG. 4 is a diagram for explaining a power supply stop sequence in the system.
[Explanation of symbols]
1: main frame (MF), 2: server, 3 and 4: magnetic disk device (RAID), 6-8: uninterruptible power supply (UPS), 5: LAN.

Claims (2)

A server, a plurality of peripheral devices connected to the server via a LAN, a server uninterruptible power supply connected to the server, and a plurality of peripheral uninterruptible power supplies connected to the plurality of peripheral devices A power supply interlocking control method in a network system comprising:
A plurality of first interfaces for transmitting information between the plurality of uninterruptible power supply units; a second interface for transmitting information between a specific peripheral device and a specific uninterruptible power supply unit; and a plurality of uninterruptible power supply units And a third interface for LAN connection, and when the system power is turned on, the uninterruptible power supply connected to the server is connected to the specific peripheral device uninterruptible power via the first interface or the third interface. A first step of instructing the power supply device to turn on the power supply of the specific peripheral device; and the specific uninterruptible power supply device to the server uninterruptible power supply device triggered by start-up completion signals of a plurality of peripheral devices And a second step of instructing to turn on the server. A server, a plurality of peripheral devices connected to the server via a LAN, a server uninterruptible power supply connected to the server, and a plurality of peripheral uninterruptible power supplies connected to the plurality of peripheral devices A power supply interlocking control method in a network system comprising:
A plurality of first interfaces for transmitting information between the plurality of uninterruptible power supply units; a second interface for transmitting information between a specific peripheral device and a specific uninterruptible power supply unit; and a plurality of uninterruptible power supply units And an uninterruptible power supply connected to the server when the system is shut down, the uninterruptible power supply for the specific peripheral device is connected via the first interface or the third interface. A first step for instructing a power supply to a peripheral device connected to an uninterruptible power supply other than the device, and a specific uninterruptible power supply to stop powering a specific peripheral device after the peripheral device is powered off And a second step of instructing the power supply.

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