JP2001306262A5

JP2001306262A5 -

Info

Publication number: JP2001306262A5
Application number: JP2000125415A
Authority: JP
Filing date: 2000-04-26
Publication date: 2005-06-09

Description

また前記記憶装置には前記ディスクコントローラとのインタフェースで発生した障害を積算して記憶しておく機能を有し、前記ディスクコントローラとのインタフェースにて積算値の開示要求があった時には開示する機能を有し、またループサーキット切断障害時には、前記単方向循環インタフェース又は別の専用インタフェースで障害報告する機能を持ち、また積算値が一定数を超えた場合、専用インタフェースで障害報告をしてもよく、また積算値が一定数を超えた場合、自記憶装置より上流に位置する記憶装置を前記ファイバースイッチによってデータ入出力を遮断してもよい。 Also in the storage device has a function of storing and integrating the fault occurring in-data face of the disk controller, sometimes disclosed in interface with the disk controller had disclosure requirements of the integrated value It has a function and also has a function to report a fault in the unidirectional cyclic interface or another dedicated interface in the event of loop circuit disconnection failure, or even if the integrated value exceeds a certain number, it reports a fault in the dedicated interface. Alternatively, when the integrated value exceeds a certain number, the storage device located upstream of the self storage device may be cut off by the fiber switch from data input / output.

Claims

At least one first device and a plurality of second devices that exchange information with the first device, in a looped first interface in which the information circulates in a single direction A control method of an information processing system having a mutually connected configuration, comprising: selective connection of the second device to the first interface between the individual second devices and the first interface. And switch means which can be disconnected, and the switch means selectively connects any one of the second devices to the first interface and diagnoses the failure by the first device. A control method of an information processing system characterized in that the second device is specified.

At least one first device and a plurality of second devices that exchange information with the first device, in a looped first interface in which the information circulates in a single direction A control method of an information processing system having a mutually connected configuration, comprising: selective connection of the second device to the first interface between the individual second devices and the first interface. And switch means capable of being separated, and in response to an error detection at the first interface in any of the second devices, the first interface is located upstream of the second device. A control method of an information processing system characterized by separating a second device from the first interface by the switch means.

At least one first device and a plurality of second devices that exchange information with the first device, in a looped first interface in which the information circulates in a single direction A control method of an information processing system having a mutually connected configuration, comprising: selective connection of the second device to the first interface between the individual second devices and the first interface. And disconnectable switch means, in each of the second devices, storing an error occurrence state related to the first interface, and the error occurrence state stored in any of the second devices is predetermined. In the event of deviation from the allowable range, the second device located upstream of the second device in the first interface is switched by the switch means to the first device. Control method for an information processing system characterized by disconnecting from the interface.

At least one first device and a plurality of second devices that exchange information with the first device, in a looped first interface in which the information circulates in a single direction A control method of an information processing system having a mutually connected configuration, wherein the first device detects disconnection of the first interface at the first interface detected by each of the second devices. A control method of an information processing system characterized by predicting the second device which causes the disconnection failure by collecting an error before it reaches the end.

The control method of the information processing system according to claim 1, wherein the second device is individually selected based on the success or failure of the initialization procedure of the second device by the first device on the first interface. A control method of an information processing system characterized by diagnosing whether or not is normal.

The control method of the information processing system according to claim 1, 2 or 3, wherein the switch means and at least one of the first and second devices are connected by a second interface different from the first interface. And a control method of an information processing system, wherein the first device or the second device performs connection and disconnection of the second device by the switch means.

The control method of the information processing system according to claim 1, 2, 3, 4, 5 or 6, wherein each of the second devices is connected to a second interface other than the first interface. An information processing system connected to a device and notifying the first device of error information on the first interface obtained by the second device via the second interface; Control method.

A plurality of second devices for exchanging information between at least one first device and the first device, the first device and the second device are connected, and the information is Unidirectionally circulating loop first interface, switch means for selectively connecting and disconnecting each of the second devices to the first interface, and any one of the switch means Control logic for performing diagnostic operations of the individual second devices by the first device by selectively connecting the second device to the first interface. Information processing system.

A plurality of second devices for exchanging information between at least one first device and the first device, the first device and the second device are connected, and the information is A first interface in the form of a loop that circulates in a single direction, switch means for selectively connecting and disconnecting each of the second devices to the first interface, and the above-mentioned in any of the second devices A control logic for separating the second device located upstream of the second device in the first interface from the first interface in response to the error detection in the first interface. An information processing system comprising:

A plurality of second devices for exchanging information between at least one first device and the first device, the first device and the second device are connected, and the information is A unidirectionally circulating loop first interface, switch means for selectively connecting and disconnecting the individual second devices to the first interface, and storage on each individual second device The second device located upstream of the second device in the first interface is switched to the switch in response to an error occurrence state related to the first interface being deviated from a predetermined allowable range. An information processing system comprising control logic for separating from the first interface by means.

11. The information processing system according to claim 8, 9 or 10, wherein the switch means and at least one of the first and second devices are connected via a second interface other than the first interface. An information processing system characterized in that connection and disconnection of the second device by the switch means are performed in the first or second device via the second interface.

The information processing system according to claim 8, 9, 10 or 11, wherein the first device and the second device are connected via a second interface other than the first interface, and the second device is connected. An information processing system characterized in that the first device collects error information on the first interface obtained by the device of (1) through the second interface.

An information processing system configured as a disk subsystem, wherein
The disk subsystem is
A cache memory for temporarily storing input / output data exchanged with a host computer;
A channel controller having an input / output port with the host computer and controlling an input / output interface with the host computer;
A plurality of storage devices for storing input and output data;
A disk controller that controls a plurality of storage devices via a unidirectional circular interface;
A fiber switch that is between the disk controller and the plurality of storage devices and can shut off data input / output;
A shared memory storing an interface between the channel controller and the disk controller;
Control input / output data between the channel controller and the cache memory or between the channel controller and the shared memory or between the disk controller and the cache memory or between the disk controller and the shared memory With cache switch,
An information processing system comprising:

An information processing system configured as a disk subsystem, wherein
The disk subsystem is
A cache memory for temporarily storing input / output data exchanged with a host computer;
A channel controller having an input / output port with the host computer and controlling an input / output interface with the host computer;
A plurality of storage devices for storing input and output data;
A disk controller that controls a plurality of storage devices via a unidirectional circular interface;
A fiber switch that is between the disk controller and the plurality of storage devices and can shut off data input / output;
A shared memory storing an interface between the channel controller and the disk controller;
Control input / output data between the channel controller and the cache memory or between the channel controller and the shared memory or between the disk controller and the cache memory or between the disk controller and the shared memory With cache switch,
Consists of
The plurality of storage devices are
It has a function to integrate and store the faults generated at the interface with the disk controller, and has a function to disclose when there is a request for disclosure of the integrated value at the interface with the disk controller, loop circuit disconnection In the event of a fault, it has a function to report faults on the unidirectional circular interface or another dedicated interface, and if the integrated value exceeds a certain number, a fault is reported on the dedicated interface, and if the cumulative value exceeds a certain number And a storage device located upstream of the storage device is blocked by the fiber switch from data input / output.
An information processing system characterized by

An information processing system configured as a disk subsystem, wherein
The disk subsystem is
A cache memory for temporarily storing input / output data exchanged with a host computer;
A channel controller having an input / output port with the host computer and controlling an input / output interface with the host computer;
A plurality of storage devices for storing input and output data;
A disk controller that controls a plurality of storage devices via a unidirectional circular interface;
A fiber switch that is between the disk controller and the plurality of storage devices and can shut off data input / output;
A shared memory storing an interface between the channel controller and the disk controller;
Control input / output data between the channel controller and the cache memory or between the channel controller and the shared memory or between the disk controller and the cache memory or between the disk controller and the shared memory With cache switch,
Consists of
The plurality of storage devices are
It has a function of integrating and storing the faults generated at the interface with the disk controller, and a request to disclose the integrated value is made at the interface with the disk controller Has a function to disclose when there is a loop circuit break failure, has a function to report a failure in the unidirectional circulation interface or another dedicated interface, and if the integrated value exceeds a certain number, the dedicated interface reports a failure When the integrated value exceeds a certain number, the storage device located upstream from the storage device is blocked from data input / output by the fiber switch,
The disk controller is
At the time of failure report from the storage device, it has a function to shut off the data input / output by the fiber switch with the storage device located upstream from the storage device, and a function to request the storage device to report the integrated value of interface failure. And, depending on the content of the report, has a function of blocking input / output of data of the storage device or a storage device located upstream of the storage device by the fiber switch.
An information processing system characterized by