JPH0492949A - Content retrieval device - Google Patents

Abstract

PURPOSE:To facilitate the control of the use conditions of a file device in OS and fault information by designating the device address of the file device being the object of content retrieval from the device address of a content retrieval device to which OS can refer. CONSTITUTION:A mainbody device 2 issues a retrieval command to the content retrieval device 1 with the device address (Da) as 41x. The device 1 can judge that Da of the file device (Dv) whose content is retrieved is 51x from started Da41x. Thus, Da of Dv being the object of retrieval becomes unnecessary in detailed control information on the retrieval command. The device 1 starts a file devices 5(Da51x) corresponding to Da41x whose retrieval is instructed through a file controller 3. Then, the device 1 transfers a content retrieved result to the device 2 with transferred data as the object, designates Da of Dv being the object of content retrieval by Da in the device 1. OS converts Da in the device 1 which can be referred to into Da of Dv in the same correspondence as that at the time of conversion in the device 1. Thus, Da of operation Dv can be recognized and the use conditions of Dv and fault information can easily be controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a content search device that executes a content search for a plurality of file devices, and more particularly to a method of configuring device addresses.

[Prior Art] FIG. 1 shows an example of a connection between a content search device and other devices. Here, 1 is a content search device, 2 is a main device, 3 is a file control device, 4 to 6 are file devices, 10.11 is an input/output interface line, and 12 is a file device interface line. The file control device and the file devices 4 to 6 constitute a file storage device. The number of file devices can be selected within a predetermined range depending on the capacity of the database to be stored.

The content search device 1 searches any of the file devices 4 to 6 via the file control device 3 based on a command from the main device 2, and transfers the result to the main device 2. Commands from the main device 2 to the content search device 1 are executed by input/output commands via the input/output interface line 1o, similar to commands to input/output devices such as file storage devices. The input/output interface line 10 has a bus configuration, and a command target device is designated by a device address.

FIG. 3 shows an example of the configuration of a device address of a file storage device. In the device address of a device such as a file storage device that is composed of two layers of a (common) control device and a device, the upper bits are used as a control device designation part and the lower bits are used as a device designation part. In this example, each
bit (b.

~b, ), (b, ~b,), and the control device designation part is represented by (f, ~f,) and the device designation part (d, ~d,). In the example in Figure 1, f, ~f, are expressed in hexadecimal numbers (5
) x, and d, ~d, are similarly (0) x, (])X
~(n)x. Here, n is an arbitrary number of 16 or less.

FIG. 4 shows an example of the structure of a device address of a conventional content search device. Since the content search device does not have a two-layer structure consisting of a control device and a device, the device is specified by all bits.

Here, the device addresses (b, to b,) of all input/output devices connected to one input/output interface line 1o are assigned so as not to overlap.

The prior art will be explained by taking as an example a case where the content search device 1 executes a content search targeting the file device 5 in the system shown in FIG.

The main device 2 issues a search instruction command to the content search device 1. As shown in the detailed control information of the search command command in FIG. 5, the file device device address to be searched is specified in the detailed control information.

The content search device l is the file device device address in the detailed control information (in this example, (51) x is specified)
The file device 5 to be searched for is recognized. The content search device 1 connects the file device 5 (device address/
(51) Start X). Then, the content search device 1 performs a content search on the data transferred from the input/output interface line 11 and transfers the results to the main unit 2 via the input/output interface line 10.

[Problems to be Solved by the Invention] The software of the main unit generally consists of an O8 that manages system resources and higher-level software that operates on it. The content search device is controlled by database management software (hereinafter abbreviated as DBM), which is one of the higher-level software.

The DBMS prepares a search command command for operating the content search device and detailed control information, and requests the issuance of an OS command.

Since the O8 transfers the detailed control information as it is to the content search device without referring to the content, it is not possible to know the file device that actually operates in the background of the content search.

As described above, in the conventional technology, since the OS cannot actually know the operating file device, there is a drawback that the usage status and failure information of the file device cannot be managed. Further, the detailed control information mainly describes logical search information for the database. There was also the drawback that a different file device device address had to be written together.

SUMMARY OF THE INVENTION An object of the present invention is to provide a content search device in which the device address of a file device to be searched is written in information that can be referenced by an O8, and the O8 can easily manage usage status and failure information of the file device.

[Means for Solving the Problems] In order to achieve the above object, the present invention executes a content search of a file storage device that requests configuration of a plurality of file devices based on a command from a main device. The content search device has multiple device addresses associated with multiple file device pots, which is the configuration request for the file storage device mentioned above, and targets the file device that corresponds to the device address for which the search is commanded. The purpose is to perform a content search. Furthermore, the correspondence between the multiple device addresses of the content search device and the device address of the file device can be done by, for example, assigning a specific bit among the multiple bits expressing the device address as '0' and '1.
This is done by inverting the bits and making the other bits the same.

[For production]

Although the content search device is a single device, it has device addresses equal to the number of file devices to be searched, and each device address corresponds one to one with the device address of the file device to be searched. was ordered (
Content search is performed on the file device corresponding to the device address (of the content search device).

In this way, in the present invention, the device address of the file device that is the target of content search is specified by the device address of the content search device that O8 can refer to, so O8 can easily manage the usage status and failure information of the file device. can.

〔Example〕

An embodiment of the present invention will be described below with reference to the drawings.

It is assumed that the connection example between the content search device and other devices is the same as in FIG.

FIG. 2 shows an example of the structure of the device address of the content search device according to the present invention. Like the device address of a file storage device, this device address uses the upper bits as a control device designation part and the lower bits as a virtual device designation part. In this example, each has 4 bits (b, ~
b yo), (b4 to b,). The control device specification part and the device specification part are (cm~C,) and (d
, ~d,). The content search device 1 has device addresses equal to the number of file devices to be searched, and the designation part (d, to d,) of each device address is the device designation of the device address of the file device to be searched. The same values are used as for the parts (d, ~ton in Figure 3). The control device specification section (c, ~cj is the control device specification section (f in Fig. 3) of the device address of the file device to be searched.
, ~f,) is a possible value. For example, c,=f1,c,=f,,c,=f,,+f in C8,
shall be. here, '! ′ represents negation (bit reversal). In the example of FIG. 1, f, ~f, are (5)X, so C0-C8 are (4)x. Therefore, the device address of the content search device is (40) x, (4])
n) becomes x.

The present embodiment will be described by taking as an example a case in which the content search device 1 executes a content search targeting the file device 5 in the system shown in FIG.

The main device 2 issues a search instruction command to the content search device 1 with the device address set to (41)x.

In the content search device 1, the activated device address is (4
1)x, it can be determined that the device address of the file device whose contents are searched is (51)x.

Therefore, the detailed control information of the search command does not require the file device device address to be searched in the detailed control information in the prior art shown in FIG. The logical search conditions other than the file device device address in the detailed control information are the same. The content search device 1 activates the file device 5 (device address: (51)X) corresponding to the device address (41)X for which the search is instructed via the file control device 3 via the input/output interface line 11. The content search device 1 is connected to the input/output interface line 1.
The contents of the data transferred from 1 are searched, and the results are transferred to main unit 2 through input/output interface line 10.

In this way, in the present invention, the device address of the file device that is the target of content search is specified by the device address of the content search device. In O8, the device address of the content search device that can be referenced is converted to the device address of the file device using the same mapping as converted by the content search device, so the device address of the operating file device can be recognized, and the device address of the file device usage status and failure information can be easily managed.

Note that the bit length of the device address and the division between the control device designation part and the device designation part described in this embodiment are merely examples, and the present invention is not limited thereto.

〔Effect of the invention〕

As described above, in the present invention, the device address of the file device that is the target of content search is specified from the device address of the content search device that O3 can refer to, so O8 can easily obtain the usage status and failure information of the file device. Can be managed.

Furthermore, since the detailed information on search specifications given to the content search device is hierarchically divided into physical device addresses and logical search conditions, it is easier to assemble and manage search commands.

[Brief explanation of the drawing]

FIG. 1 is a diagram showing an example of the connection between the content search device and other devices, FIG. 2 is a diagram showing an example of the structure of the device address of the content search device according to the present invention, and FIG. 3 is an example of the structure of the device address of the file device. FIG. 4 is a diagram showing an example of the configuration of a device address of a content search device in the prior art.
The figure is a diagram showing a configuration example of detailed control of search commands for a content search device in the prior art. 1...Content search device, 2...Main device, 3...
File control device, 4-6... File device, 10.11... Input/output interface line, 12...
File device interface line. Child ha' (7-YdoLsu rJj (+5 (lv spring 1)) (50
). (51)

Claims (2)

[Claims] (1) In a content search device that executes a content search of a file storage device for which a configuration request is made of a plurality of file devices based on a command from the main device, each of the plurality of file devices that is a configuration request for the file storage device is 1. A content search device characterized by having a plurality of device addresses associated with a device address, and executing a content search targeting a file device corresponding to a device address for which a search is instructed. (2) To associate the content search device with multiple device addresses, one specific bit among the multiple bits representing the device address must be inverted to '0' and '1', and the other bits must be the same. The content search device according to claim (1), characterized in that: