JP4966610B2 - Information processing system, emergency power-off method for information processing system - Google Patents

Description

  The present invention relates to an emergency power-off method and method for an information processing system, and more particularly to an emergency power-off method and method for an information processing system equipped with a UPS (non-stop power supply device).

  A conventional power supply control system having an EPO (Emergency Power Off = Emergency Power Off) function is disclosed in Patent Document 1. In this power control method, the main unit is provided with switch means for cutting off the power supply in an emergency, and the power control unit of the main apparatus detects that the power of the main apparatus has been cut off by this switch means and supplies power to a plurality of peripheral devices. A disconnect command is sent, and the power to each peripheral device is also disconnected at the same time.

  On the other hand, in recent information processing systems, there is a system that includes a device that requires a non-disruptive power source, such as an EMU (Extended Storage Device), as part of the system. However, due to equipment costs and the like, each of the other power supply devices receives AC power from the distribution board.

  FIG. 3 shows a system configuration when a conventional power control method with an EPO function is adopted in this information processing system.

  Referring to FIG. 3, in addition to the function of receiving the notification from the EPO switch 101 of the CPU 10 and performing AC disconnection by the relay 701 provided in the distribution board 70, it is also necessary to disconnect the non-stop power source supplied from the UPS 50 to the EMU 30. Therefore, hardware such as the relay 80 is provided outside the UPS 50.

  The information processing system is provided with an SVP 40 (service processor) for system diagnostic control and status monitoring. The SVP 40 and the EMU 30 and the SVP 40 and the CPU 10 are connected by a bus 100 as an interface for performing diagnostic control and the like. A control interface cable 105 ′ is installed between the EMU 30 and the UPS 50 for the EMU 30 to detect the state of the UPS 50.

JP-A-2-39311 (first page)

  However, the power supply control method having the conventional EPO function has the following problems. The first problem is that when applied to an information processing system using a UPS, it is necessary to provide a large-scale hardware such as a relay on the UPS side.

  The second problem is that, when applied to an information processing system using a UPS, when a UPS-side relay is driven, power supply to a non-stop power receiving device (such as an EMU) is cut off. This means that the power-off sequence cannot be maintained in the non-stop power receiving device, and the electronic components may be electrically destroyed.

  An object of the present invention is to provide an emergency power-off method and method for an information processing system that solves the above-described problems.

  The emergency power-off method of the first information processing system of the present invention is an emergency power-off method of an information processing system including a UPS device that supplies non-stop power and a device that receives non-stop power from the UPS device. Means for notifying the information processing system that the emergency power-off switch has been turned on and has entered the EPO state, and the device receiving the non-stop power supply receives the notification of the EPO state and sends the notification to the UPS. Means for transferring to the apparatus and means for turning off the operating power in a normal off sequence, and means for receiving the transferred notification to the UPS apparatus and cutting off the AC power output after a predetermined time.

  The emergency power-off method of the second information processing system of the present invention is an emergency power-off method of the information processing system, and the information processing system includes a main body side device, the main body side device and an interface. Including a service processor, a peripheral device, and a UPS device for supplying non-stop power, wherein at least one of the main body side device and the peripheral device receives non-stop power from the UPS device, When the emergency power-off switch and the emergency power-off switch are turned on, the AC power supply disconnection operation start is transmitted to the distribution board, and the EPO state is notified to the service processor. Means for monitoring the interface and detecting that the service processor is in an EPO state; and receiving the detection and passing the EPO state to the service processor. Means for receiving the notification of the EPO state and transferring the notification to the UPS device, and means for performing a closing process and turning off the operating power in a normal off sequence. And the UPS device includes means for receiving the transferred notification and cutting off the AC power output after a predetermined time has elapsed.

  The emergency power-off method of the third information processing system of the present invention is the emergency power-off method of the second information processing system, and the means for notifying the EPO of the service processor is a notification destination storage unit The EPO is notified to the device that receives the non-stop power supply.

  The emergency power-off method of the fourth information processing system of the present invention is the emergency power-off method of the second information processing system, and the apparatus on the main body side provided with the emergency power-off switch is centrally processed. A device.

  The emergency power-off method of the fifth information processing system of the present invention is the emergency power-off method of the second information processing system, and the device that receives the non-stop power supply is expanded using a volatile memory. A storage device is assumed.

  An emergency power-off method for an information processing system according to the present invention is an emergency power-off method for an information processing system including a UPS device that supplies non-stop power and a device that receives non-stop power from the UPS device. And a procedure for notifying the information processing system that the emergency power-off switch is turned on to enter the EPO state, and the device receiving the non-stop power supply receives the notification of the EPO state and sends the notification to the UPS. A procedure for transferring to the device, a procedure for performing a close process and turning off the operating power in a normal off sequence, and a procedure for receiving the transferred notification to the UPS device and cutting off the AC power output after a predetermined time has elapsed. .

  The emergency power-off method of the second information processing system according to the present invention includes a main body side device, a service processor having an interface with the main body side device, a peripheral device, and a UPS device for supplying non-stop power. An emergency information power-off method for an information processing system in which at least one of the main body side devices and peripheral devices receives non-stop power from the UPS device, wherein one of the main body side devices includes: An emergency power-off switch, and a procedure for transmitting an AC power-off operation start to a distribution board when the switch is turned on, and notifying the service processor of an EPO state. It has an EPO state monitoring procedure for monitoring and detecting the EPO state, and a procedure for receiving the detection and notifying the EPO state, and receiving the non-stop power supply Receiving a notification of the EPO state, transferring the notification to the UPS device, and performing a close process of the own device and turning off the operating power in a normal off sequence, It has a procedure of receiving the transferred notification and cutting off the AC power output after a predetermined time has elapsed.

  An emergency power-off method of the third information processing system according to the present invention is an emergency power-off method of the second information processing system, and a procedure for notifying the EPO of the service processor is a notification destination storage unit. And a procedure for notifying the device that receives the non-stop power supply of EPO.

  An emergency power-off method of the fourth information processing system according to the present invention is an emergency power-off method of the second information processing system, and the apparatus on the main body side including the emergency power-off switch is centrally processed. A device.

  An emergency power-off method for an information processing system according to a fifth aspect of the present invention is an emergency power-off method for the second information processing system, wherein a device that receives the non-stop power supply is expanded using a volatile memory. A storage device is assumed.

  The present invention uses the existing HW of the device receiving the non-stop power supply from the SVP, UPS, and UPS, thereby realizing the UPS output power supply disconnection during EPO and the processing associated therewith. Even if it is used in an information processing system including a large amount of hardware, there is an effect that a large external hardware facility is unnecessary.

  Next, the best mode for carrying out the present invention will be described in detail with reference to the drawings. FIG. 1 is a block diagram of an information processing system including an emergency power-off system according to the present invention. Referring to FIG. 1, the information processing system includes a CPU 1 (central processing unit), an IOP 2 (input / output processing unit), an EMU 3 (extended storage unit), and an SVP (service processor) as main unit side devices. The disk storage devices 6-1 and 6-2 are included, and the EMU 3 is a device that receives a non-stop power supply, and also includes a UPS 5 (non-stop power supply device).

  The CPU 1 is provided with an EPO switch 11 (emergency power-off switch). In the present embodiment, the EPO switch 11 is mounted on the CPU 1, but there may be a device having an EPO (emergency power-off) function alone, regardless of the mounting location as the information processing system.

  Large general-purpose computers often have a dedicated SVP (service processor) for diagnostic control, system status monitoring, or system log recording. The SVP 4 is connected to each device on the main body side of the CPU 1 and the IOP 2 via the bus 103.

  When the EPO switch 11 is operated and turned on, the fact (EPO state) is notified to the SVP 4 via the bus 103. The SVP 4 has an EPO state monitoring means 41 for monitoring the bus 103 and detecting that the EPO state is entered. The EPO state monitoring unit 41 is realized by detecting in software that the EPO state notification has been performed a predetermined number of times or more through the bus 103.

  The EMU 3 receives a non-stop AC power supply from the UPS 5. Since the EMU 3 of the general-purpose large computer is located between the main memory and the disk storage devices 6-1 and 6-2, the same high-speed volatile memory element as the main memory is used as the storage element. Since power is also required, power is received through UPS 5 as a countermeasure against a power failure.

  The SVP 4 stores the identification information (communication address) of the device receiving the AC power from the UPS 5 in the information processing system in the notification destination storage unit 43 attached. The EMU 3 is stored in the notification destination storage unit 43. When the EPO notification unit 42 is notified by the EPO state monitoring unit 41 that the system has entered the EPO state, the notification destination storage unit 43 refers to the notification destination storage unit 43, and That is notified to the EMU 3 via the control interface 106.

  The EPO notification means 42 is a means for this, but since communication from the SVP 4 to other devices is often performed by network control using a general-purpose LAN (Local Area Network) card, this notification is specified on the network. There are other embodiments that can be realized by defining the communication code of and generating the code by software.

  The EMU 3 knows through the control interface 106 that the information processing system has entered the EPO state by the EPO notification receiving means 31. In the other embodiment, the EPO notification receiving means 31 is also realized by detecting the specific code defined on the network by software.

  In general-purpose computers, it is common to control the power-off sequence in order to protect system data, etc., and to protect electronic components from electrical damage when turning off the power of its own device. . For example, it can be realized by segmenting power receiving components with the same power off / on timing, assigning a dedicated power source to each segment A to D, and controlling the order in which each power source is turned off / on is doing. The term “power source” as used herein refers to a device that outputs an operation power source (mainly DC) using an AC power source as an input, and is incorporated in the EMU 3.

  At this time, in the case where the segment A has information that becomes a core for system control and the power cannot be turned off until the information is discharged to the nonvolatile memory (flash memory or the like), the information is discharged to the nonvolatile memory. Necessary and sufficient time = T is calculated, and control is performed by software or a dedicated HW so as to secure time = T from when the segment A power is turned off until the power is actually turned off. .

  The EMU 3's own device closing means 33 is a means for activating the device for such existing power interruption and saving control to the nonvolatile memory. The EPO notification transfer unit 32 of the EMU 3 is a unit that transmits the content received by the EPO notification reception unit 31 to the UPS 5 via the control interface 105.

  The control interface 105 may be a network connection using a general-purpose LAN card, or may be a simple contact signal exchange. For example, it is realized by defining as Level High = EPO state / Level Low = non-EPO state. The control interface 105 is an interface necessary for detecting the state of the UPS 5 on the EMU 3 side. Therefore, the signal definition in the cable is newly added as the control interface 105 in the present invention, and the total amount of hardware is not increased.

  In the embodiment in which the control interface 105 is defined by a contact signal, the EPO notification receiving means 51 is realized by detecting the rising edge of this signal and then confirming quantitatively the same LEVEL. Since such filter control is a general matter, details are not stated. When the control interface 105 is an LAN network interface, software detection is performed.

  The UPS 5 supplies a non-stop AC power supply to the EMU 3, but includes a power supply cut-off circuit 52 that stops the supply of power when a failure such as a short circuit is detected. In the UPS 5, the output of the EPO notification receiving means 51 is ORed with the output of an internal short circuit detection circuit (not shown), and when the EPO notification receiving means 51 detects that the system is in the EPO state, The supply interruption circuit 52 is activated.

  Next, the operation of the best mode for carrying out the present invention will be described with reference to the drawings. FIG. 2 is a flowchart showing the operation of the embodiment of the present invention. Referring to FIG. 2, when the EPO switch 11 is operated and turned on (step S1), a notification command indicating that the EPO state is turned on is repeatedly notified to the SVP 4 via the bus 103, and at the same time, the EPO switch on output (level Signal) is transmitted to the distribution board 7 in the machine room (step S2).

  In the distribution board 7, driving of the relay 71 is started (step S3).

  In SVP 4, the EPO state monitoring unit 41 detects that the number of times the EPO state notification command has been received exceeds the predetermined value and the information processing system has entered the EPO state (step S 4), and the EPO notification unit 42 receives the notification destination storage unit 43. , The EMU 3 is notified via the control interface 106 (step S5).

  On the other hand, in the distribution board 7, the relay 71 breaks after a predetermined time from the start of driving, and power is supplied from the distribution board 7 to each of the CPU 1, IOP 2, UPS 5, and disk storage devices 6-1 and 6-2 (for example, (AC power supply) is cut off (step S6). In the UPS 5, the power supply from the battery is activated simultaneously with the interruption of the AC power supply from the distribution board 7, and the AC power generated thereby is continuously supplied to the EMU 3 (step S 7).

  In the EMU 3, when the EPO notification receiving unit 31 detects the EPO signal, the EPO notification transfer unit 32 transfers the EPO state to the UPS 5 via the control interface 105 (step S8). Next, the system closing means 33 is used to discharge system information and the like to a non-volatile memory (flash memory, etc.) (step S9), and the operation power is turned off while keeping the power-off sequence in order not to damage the electronic components. (Step S10).

  In the UPS 5, when the EPO state is transferred, the EPO notification receiving unit 51 detects that the information processing apparatus system has entered the EPO state, and instructs the power supply cutoff circuit 52 to start (step S11). At this time, the time required for the own device closing process in the EMU 3 is treated as a time constant for starting the power supply cutoff circuit 52, and after the time constant has elapsed, the AC power supply to the EMU 3 is cut off (step S12).

  In the description of the above embodiment, the SVP 4 has the notification destination storage unit 43, and when the EPO notification means 42 is notified that the system is in the EPO state, the notification destination storage unit 43 is referred to and the EMU 3 is notified. Although an example of notification to that effect has been described, when the SVP 4 does not have the notification destination storage unit 43 and the EPO notification means 42 is notified that the system has entered the EPO state, all connected devices are notified. There is also an embodiment in which broadcast notification is sent all at once, and the EMU 3 receives the notification and performs notification transfer, close processing, and operation power-off sequence.

  In this embodiment, existing SVP4, bus 103, and transmission media of the control interface 106 are used as hardware as a base for realizing a means for monitoring and detecting the EPO switch state and a means for notifying the EMU. The EPO status notification from the EMU 3 to the UPS 5 is realized by using the existing interface media between both apparatuses, and the existing power supply cutoff circuit is used as the means for cutting off the UPS output itself.

  Accordingly, the present invention can be implemented by adding signal lines in the interface media, notification command transmission software, monitoring and detection software, activation control of existing circuits, etc., so the emergency power-off method of the information processing system of the present invention Even if it is used in an information processing system including a UPS, a large external hardware facility is not required.

  According to the present embodiment, the state is changed to the EPO state while guaranteeing the power-off sequence in the device that is connected to the UPS and receives the non-stop power supply. And the apparatus can be restarted promptly upon recovery from a disaster or the like.

It is a block diagram of the emergency power-off system of the information processing system according to the present invention. It is the flowchart which showed operation | movement of embodiment of this invention. It is the block diagram which showed the system configuration | structure at the time of employ | adopting the conventional power supply control system with an EPO function in the system containing UPS.

Explanation of symbols

1 CPU
11 EPO switch 2 IOP
3 EMU
31 EPO notification receiving means 32 EPO notification transferring means 33 Self-device closing means 4 SVP
41 EPO state monitoring means 42 EPO notification means 43 Notification destination storage section 5 UPS
51 EPO Notification Receiving Unit 52 Power Supply Disconnection Circuit 6-1 and 6-2 Disk Storage Device 7 Distribution Panel 71 Relay 103 Bus 105 and 106 Control Interface

Claims (10)

An information processing system including a UPS device that supplies uninterruptible power and an uninterruptible power receiving device that is a device that receives uninterrupted power from the UPS device
When the emergency power-off switch is turned on, the information processing system transmits an AC power-off operation start to the distribution board, and notifies the uninterruptible power supply that the emergency power-off (EPO) state has been established. EPO notification means for transmitting to the power receiving device,
The uninterruptible power supply receiving device receives the notification, means for transferring the notification to the UPS device, and means for receiving the notification , performing a closing process of the own device, and turning off the operating power in a predetermined off sequence. Prepared,
The UPS device is an information processing system comprising means for receiving the transferred notification from the uninterruptible power receiving device and cutting off the output of the uninterruptible power supply to the uninterruptible power receiving device after a predetermined time has elapsed. A main body side device, a service processor having an interface with the main body side device, a peripheral device, and a UPS device for supplying a non-stop power supply,
An uninterruptible power supply receiving device in which at least one of the main body side device or the peripheral device receives uninterruptible power from the UPS device,
When the emergency power cut-off switch and the emergency power cut-off switch are turned on, an AC power cut-off operation start is transmitted to one of the main body side devices, and the emergency power-off (EPO) state is Means for notifying the service processor;
The service processor transmits to the uninterruptible power receiving device an EPO state monitoring unit that monitors the interface and detects that the EPO state has been detected, and a notification indicating that the service has entered the EPO state. EPO notification means
The uninterruptible power supply receiving device receives the notification, means for transferring the notification to the UPS device, and means for receiving the notification , performing a closing process of the own device, and turning off the operating power in a predetermined off sequence. Prepared,
The UPS device is an information processing system comprising means for receiving the transferred notification from the uninterruptible power receiving device and cutting off the output of the uninterruptible power supply to the uninterruptible power receiving device after a predetermined time has elapsed. The uninterruptible power receiving device is segmented for each component having the same timing to turn off the operating power until the information included in the segment including information necessary for controlling the information processing system is output to the nonvolatile memory Controlling the off sequence so that the operating power is turned off after a time T required for
The information processing system according to claim 2, wherein the UPS device cuts off the output of the uninterruptible power supply to the uninterruptible power receiving device after the time T has elapsed. The information processing system according to claim 2, wherein the main body side device including the emergency power-off switch includes a central processing unit. The information processing system according to any one of claims 2 to 4, wherein the uninterruptible power receiving device is an extended storage device using a volatile memory. An emergency power-off method for an information processing system including a UPS device that supplies uninterruptible power and an uninterruptible power supply that is a device that receives uninterruptible power from the UPS device,
The information processing system transmits a notification indicating that an emergency power-off switch is turned on and an emergency power-off (EPO) state is established, to the uninterruptible power supply device,
The uninterruptible power supply device receives the notification, transfers the notification to the UPS device, receives the notification , performs a close process of the own device, and turns off the operating power in a predetermined off sequence,
An emergency power-off method for an information processing system, wherein the UPS device receives the transferred notification from the uninterruptible power supply device and cuts off the output of the uninterruptible power supply to the uninterruptible power supply device after a lapse of a predetermined time. A main body side device, a service processor having an interface with the main body side device, a peripheral device, and a UPS device for supplying a non-stop power supply,
An emergency power-off method for an information processing system, which is an uninterruptible power receiving device, in which at least one of the main body side device or the peripheral device receives uninterruptible power from the UPS device,
When the emergency power-off switch is turned on, one of the main body-side devices transmits a procedure for notifying the service processor of an emergency power-off (EPO) state by transmitting an AC power-off operation start to the distribution board. Have
The service processor monitors the interface to detect that it has entered the EPO state, and transmits a notification indicating that the detection has entered the EPO state to the uninterruptible power supply device.
The uninterruptible power supply device receives the notification, transfers the notification to the UPS device, receives the notification , performs a close process of the own device, and turns off the operating power in a predetermined off sequence,
An emergency power-off method for an information processing system, wherein the UPS device receives the transferred notification from the uninterruptible power supply device and cuts off the output of the uninterruptible power supply to the uninterruptible power supply device after a lapse of a predetermined time. The uninterruptible power receiving device is segmented for each component having the same timing to turn off the operating power until the information included in the segment including information necessary for controlling the information processing system is output to the nonvolatile memory Controlling the off sequence so that the operating power is turned off after a time T required for
8. The emergency power-off method for an information processing system according to claim 7, wherein the UPS device cuts off the output of the uninterruptible power source to the uninterruptible power receiving device after the time T has elapsed. The emergency power-off method for an information processing system according to claim 7 or 8, wherein the main body side device including the emergency power-off switch includes a central processing unit. The emergency power-off method for an information processing system according to any one of claims 6 to 9, wherein the uninterruptible power supply device is an extended storage device using a volatile memory.

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