JP2003208245A - Communication adapter connected to information processor and ups - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an interlock adapter capable of executing communication between the different interfaces of a disk sub-system such as a disk array and an uninterruptible power supply (UPS) for protecting data in power failure, and capable of communicating power failure from the UPS or the battery failure of the UPS to the disk device. <P>SOLUTION: As for a disk device having an exclusive interlock interface with an exclusive UPS and a UPS having a communication interface with the other device such as a server, an adapter for converting those different interfaces is provided to execute communication between those devices. Thus, it is possible to communicate power failure from the UPS or the battery failure of the UPS to the disk device, and to execute data protection processing such as the data processing or shut-down processing of a cache memory by the disk device. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention enables information processing devices such as a disk array device and a magnetic disk device mounted in the disk array device, and power supply to these information processing devices when a power failure such as a power failure occurs. Related to interlocking control with uninterruptible power supply.

[0002]

2. Description of the Related Art In a conventional apparatus, a power source is secured by UPS for data protection in case of a power failure or the like, and during this period, a shutdown request from a host or a manual shutdown is required. Although a dedicated UPS is used, and the UPS notifies the disk device of a power failure by a dedicated interface to shut down the disk device, it is generally necessary to manually shut down. Further, even if the dedicated interface is provided, if the dedicated interfaces must be connected one-to-one, the connection configuration will be limited.

[0003]

In the conventional device, it is not possible to say that the shutdown will be performed reliably because the shutdown must be performed manually when a power failure occurs. If no shutdown occurs, UPS
At the time when the battery is exhausted, the information processing apparatus eventually suddenly loses power to the disk device, resulting in interruption of operation and loss of information. When the information processing device is a magnetic disk device, there is a risk of data loss such as data on the cache memory. Further, even when shutting down using a dedicated interface, the number of communicable units is one to one, and the connection configuration is limited.

[0004]

In order to solve the above-mentioned problems, in an information processing apparatus having a dedicated interface between a UPS having a contact interface for interlocking with a server and a dedicated UPS, these interfaces are converted to communicate. It is possible to communicate between the UPS and the information processing device through a UPS interlocking adapter that enables
This makes it possible to terminate the information processing apparatus when the PS is abnormal. When the information processing device is a disk device, it is possible to perform data saving processing and shut down the disk device in the event of a power failure. Further, this adapter has a plurality of connection connectors on both the UPS side and the information processing device side, so that it is possible to provide a degree of freedom in connection configuration.

With this method, it becomes possible to establish a communication connection between the UPS having a different interface and the information processing device,
By allowing a plurality of units to be connected, the degree of freedom in the connection configuration increases, and when the information processing device is a magnetic disk device, the data protection of the disk device can be made more reliable.

[0006]

1 shows an embodiment of the present invention.
The disk array device 01 is equipped with two ACDC power supplies, and can operate with only one power supply. The disk device 01 has a communication function with a dedicated UPS and can receive an alarm signal from the dedicated UPS through a dedicated interface. The UPS 11 can supply power to the two disk devices and the UPS interlocking adapter, and receives power from the switchboard 15. The disk device 01 is supplied with power from a power supply 21 mounted therein, and the power supply 22 is supplied with power from a switchboard 16 which is a system different from the UPS 11. The UPS communication adapter 101 receives power supply from the UPS 11, and is connected to the UPS 11 by the communication cable 31 and the disk device 01 by the communication cable 33. Communication cable 31 is UPS
11 is connected to the server communication interface, and the communication cable 33 is connected to the dedicated interface section of the disk device 01.

[0007] The UPS 11 can communicate the abnormality of the battery mounted in the UPS 11 and the power failure of the power supplied to the UPS 11 through the power cable 41 through the communication means for the server. When a battery abnormality occurs, the UPS 11 sends a battery abnormality signal through the communication cable 31. UPS communication adapter 101
When this battery abnormal signal is received, the disk device 0
A UPS alarm signal is issued to the No. 1 via the communication cable 33. Further, when the power supply from the switchboard 15 to the UPS 11 is stopped, the UPS 11 supplies power to the disk device 01 and the UPS communication adapter through the power cables 43 and 44 by the power of the battery, and after a certain period of time, the communication cable 31 receives a power failure occurrence signal. To issue. Upon receiving this power failure occurrence signal, the UPS communication adapter 101 issues a UPS alarm signal to the disk device 01 through the communication cable 33 after a fixed time. Disk device 01
When the UPS alarm signal is received from the UPS communication adapter 101, writes the data in the cache memory, which is a volatile memory, to the disk, and then operates in the cache through mode in which the data is not placed in the cache memory. Prevent data loss during power outages. If the abnormality is avoided in this state (U
If the abnormal signal from PS11 stops), UPS communication adapter 101 stops the output of the UPS alarm signal,
The disk device 01 also returns to normal operation. In addition, UPS
When the switchboard 16 is in a power failure state at the time of receiving an alarm, the disk device 01 starts shutdown and performs a regular stop process to prevent a failure such as data loss due to a sudden power failure.

FIG. 2 shows an embodiment in which power is supplied to two disk devices by one UPS. The UPS communication adapter can communicate with a plurality of disk devices and a plurality of communication cables are connected. It is possible. When two disk devices are connected to one UPS, one UPS communication adapter 101 is connected to one communication output that the UPS 11 has, and two disk devices 01 and 02 are connected from here through the communication cables 33 and 34. It is possible to send a signal to. UPS
When the communication adapter receives the above-mentioned UPS abnormal signal, it transmits a UPS alarm signal to both the disk devices 01 and 02. (The same signal is output to a plurality of communication cables.) FIG. 3 shows a case where power is supplied from two UPSs to a disk device capable of adding an additional enclosure of the disk device having no controller section. An example is shown. Disk device 0
Reference numerals 3 to 05 denote additional enclosures connected to the disk device 01, each of which has two ACDC power supplies. Like the disk device 01, one power supply is UPS 11 or UP.
At S12, the other is connected to the switchboard 16. U
PS12 is a UPS of the same type as UPS11, and the switchboard 1
Power is supplied from 5 and the power is supplied to the additional enclosures 04 and 05. UPS 12 uses UPS with communication cable 32
It is connected to the communication adapter. UPS communication adapter 1
When 01 receives the above-mentioned abnormal signal from at least one of the connected UPS, it issues a UPS alarm signal to the disk device having the controller.

[0009]

According to the present invention, it becomes possible to connect a UPS having a communication means of different specifications and a disk device, and the one-to-one connection which is normally one-to-one connection also enables communication by a plurality of connection configurations. It is possible to use the communication function even in various connection configurations.

[Brief description of drawings]

FIG. 1 is a basic connection configuration according to the present invention.

FIG. 2 is a configuration in which two disk devices (basic enclosures) are connected to one UPS according to the present invention.

FIG. 3 is a configuration in which a disk device is connected to two UPSs according to the present invention.

[Explanation of symbols]

01, 02: Disk device (basic enclosure) 03-05: Disk device (additional chassis) 11, 12: UPS 15, 16: Switchboard 21, 22: AC DC power supply for disk device 23-28: AC DC power supply for disk device 31, 32: UPS-interlocking adapter communication cable 33, 34: Interlocking adapter-disk device communication cable 41-51: Power cable 101: UPS communication adapter

Claims (5)

[Claims] 1. A UPS communication adapter connected to an information processing apparatus and a UPS for supplying power to the information processing apparatus, the communication interface being included in the information processing apparatus for receiving a communication signal from the UPS. A UPS communication adapter device, which converts and outputs a signal to the information processing device. 2. A UPS communication adapter connected to a plurality of information processing devices and a UPS for supplying power to the plurality of information processing devices, wherein the information processing device receives a communication signal from the UPS, A UPS communication adapter device, characterized in that the UPS communication adapter device converts the signal into a communication interface of the device and outputs the signal to the information processing device. 3. The UPS communication adapter according to claim 1, wherein the information processing device is a magnetic disk device, and the UPS communication adapter stores data in the magnetic disk device when power failure information is received from UPS. A UPS communication adapter device, which outputs a signal for performing evacuation processing. 4. A UPS communication adapter connected to an information processing device and a plurality of UPSs for supplying electric power to the information processing device, the communication signal being received from any one of the plurality of UPSs to obtain the information. A UPS communication adapter device, which converts into a communication interface of a processing device and outputs a signal to the information processing device. 5. The UPS communication adapter according to claim 4, wherein the information processing device has a plurality of magnetic disk devices, and each of the plurality of magnetic disk devices is the plurality of U.
Power is supplied from any of the PS, and the UPS communication adapter outputs a signal for causing the magnetic disk device to perform a data saving process when the UPS communication adapter receives power failure information from the UPS. Adapter device.