JPH09115229A - Library device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To diagnose a library device with library device single body without necessitating a host device by providing a control part for executing a diagnostic program containing a storage part provided with the diagnostic program of the library device in a changer part. SOLUTION: A transfer unit 4 moves a recording medium of the electronic data from a magazine 6 according to a request from the control part 7 and executes insertion of the recording medium into a drive unit 12. Thereafter, the unit 12 ejects the recording medium according to the request from the control part 7, which executes diagnostic program, to a drive part 3. Then, the transfer unit 4 houses the recording medium of electronic data ejected from the unit 12 to the prescribed place of the magazine 6 according to te request from the control part 7. After respective request operation were executed, the changer part 2 detects an error in movement, insertion and housing in respective steps with sensors, and when an abnormality exists, the control part 7 senses the abnormality, and the unit 12 informs the control part 7 of the abnormality to perform recovery processing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention accommodates a plurality of electronic data recording media such as magneto-optical disks, takes out the electronic data recording media, reads and writes electronic data recording media, and records electronic data. The present invention relates to a library device that performs a diagnosis without requiring a host device in the diagnosis of the library device that automatically carries a medium and stores a recording medium for electronic data.

[0002]

2. Description of the Related Art In recent years, a large number of electronic data recording media are stored, and reading and writing of the electronic data recording media, conveyance of the electronic data recording media, and storage of the electronic data recording media are automatically performed. The use of the library device is often operated by positioning it at the center of a database system or an electronic filing system. Along with this, efficient operation of the library device diagnosis method is required. Conventionally, the method of diagnosing the library device has been supported by the hardware configuration and the diagnostic program flow shown in FIGS.

FIG. 6 is a block diagram of a conventional example. In the figure, the library device 31 includes a changer unit 32,
It is composed of a drive unit 33. Changer unit 32
A transport unit 34 that sets an electronic data recording medium in the drive unit 46 and takes out the set electronic data recording medium, a magazine 36 that stores the electronic data recording medium, and an operation switch of the library device 31 are arranged. The operation unit 35, the display unit 38 in which operation lamps for turning on the power of the library device are arranged, the transport unit 34 in the changer unit 32, the operation unit 35, and the display unit 38 are comprehensively controlled, and the host device 41 Changer controller 4 including the SCSI bus signal termination circuit
It is composed of 4 and. On the other hand, the drive unit 33 includes a drive unit controller 45 that mainly controls the drive unit 46, including a SCSI bus signal terminating circuit between the drive unit 46 and the host device 41. As described above, the library device 31 uses the host device 41 as an initiator (a SCSI device that requests another SCSI device to execute an operation), and includes a changer unit 32 and a drive unit 33 that do not have a control unit that controls diagnostic program execution. Target (SCS that performs the operation requested by the initiator
I device). In the diagnosis by the diagnostic program, the diagnostic program is stored in the host device 41, and the changer unit 32 and the drive unit 33 execute various operations in response to execution requests of various operations from the host device 41. When an error occurs, the host device 41 handles recovery such as retry of the operation in which the error occurred.

FIG. 7 is a flow chart of a diagnostic program when a conventional electronic data recording medium is taken out from the magazine 36, set in the drive unit 46, and returned from the drive unit 46 to the magazine 36. In the figure, first, in step S11, the transport unit 34 moves the recording medium of electronic data from the magazine 36 in response to a request from the host device 41 to the changer unit 32, and inserts it into the tribe unit 46. In the subsequent step S13, the drive unit 46 discharges the electronic data recording medium in response to a request from the host device 41 to the drive unit 33. Next, in step S15, the transport unit 34 stores the electronic data recording medium ejected from the drive unit 46 in a predetermined location of the magazine 36 in response to a request from the host device 41 to the changer unit 32. Above S1
After performing the requested operation in steps S1, S13, and S15, in steps S12 and S16, if the changer unit 32 detects an error in movement, insertion, or storage by the sensor, and there is an error, in step S17. The host device 41 detects an abnormality. In step S14,
The drive unit 46 notifies the host device 41 of the abnormality.

FIG. 8 is a hardware configuration diagram inside the controller 44 of the changer section shown in FIG. 6 relating to the conventional example. In the figure, the SPC 47 which is the protocol control unit of the interface portion with the SCSI bus is S
It is a protocol control unit that performs control as a target of CSI.

As described above, in order to diagnose the library device 31, since the library device 31 is a target having different IDs in the changer unit 32 and the drive unit 33, the host device 41 serving as an initiator is required. Therefore, it is difficult to perform efficient diagnosis in which the library device 31 alone cannot be diagnosed.

[0007]

As described above, in the conventional diagnosis of the library device 31, there is a problem that the diagnosis of the library device 31 cannot be executed by the library device 31 alone. The present invention has been made in consideration of the above problem, and an object of the present invention is to enable diagnosis of the library device 31 by the library device 31 alone with a simple configuration.

[0008]

In order to solve the above problems, the present invention sets a drive unit 3 for reading and writing an electronic data recording medium and an electronic data recording medium in the drive unit 3, Further, in the library device 1 in which the transport unit 4 for taking out the set recording medium of the electronic data and the changer unit 2 having the magazine 6 for storing the recording medium of the electronic data are configured in the same housing, the library device 1 is used. The changer unit 2 is provided with a control unit 7 that controls the execution of the diagnostic program, including a storage unit that constantly stores the diagnostic program of 1.

A control unit 7 for executing the diagnostic program
It is also effective to display the error code information of the drive unit 3 on the display unit 8 of the changer unit 2.

Further, it is effective that the control unit 7 which controls the execution of the diagnostic program causes the display unit 8 of the changer unit 2 to display detailed information on the control of the drive unit 3 up to an error.

Further, the control unit 7 which controls the execution of the diagnostic program displays the information on the SCSI bus related to the control of the drive unit 3 on the display unit 8 of the changer unit 2, so that the effect becomes more remarkable.

[0012]

According to the library apparatus 1 having the structure of the first aspect, the diagnostic program constantly provided in the changer unit 2 is used to read and write the electronic data recording medium of the drive unit 3 and the electronic data of the changer unit 2. Diagnosis of taking out and storing the recording medium can be easily performed by the library device 1 alone.

According to the library apparatus 1 having the structure described in claim 2, in addition to the operation described in claim 1, the code information of an error generated in the drive section 3 is displayed on the changer section 2 as sense information details. It can be displayed on the part 8.

The library device 1 having the structure of claim 3 has the processing time and the number of retries which are detailed information on the control until the error of the drive section 3 in addition to the operation of claim 1. And the like can be displayed on the display unit 8 of the changer unit 2.

In the library device 1 having the structure of claim 4, in addition to the operation of claim 1, information on the SCSI bus regarding control of the drive unit 3 is displayed on the display unit 8 of the changer unit 2. Can be displayed.

[0016]

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing an embodiment of the present invention; FIG. FIG. 2 is an overall external view of the present invention. In FIG. 1, the library device 1 has a changer unit 2 and a drive unit 3 arranged in the same housing.

FIG. 1 shows claims 1 to 3 of the present invention.
It is a block diagram of. In the figure, the library device 1
Is composed of a changer unit 2 and a drive unit 3. In the changer unit 2, a drive unit 12 is set with an electronic data recording medium, and the set electronic data recording medium is taken out, and electronic data recording is performed. A magazine 6 for storing media, and an operation unit 5 having a switch for designating display of error information of the library apparatus 1 and the like.
And a display section 8 on which an operation lamp for turning on the power of the library apparatus 1 and an error information display are arranged, and a changer section 2
The control unit 7 comprehensively controls the transport unit 4, the operation unit 5 and the display unit 8 therein, and controls the host device 11 and executes a diagnostic program including a SCSI bus signal terminating circuit. On the other hand, the drive unit 3 is the drive unit 1
2 and the host device 11 and includes a SCSI bus signal terminating circuit, and is mainly composed of a controller 21 of a drive unit for controlling the drive unit 12. The control unit 7, which controls the execution of the diagnostic program, serves as a SCSI initiator when the diagnostic program is executed, and serves as a controller having a storage unit in which the diagnostic program is permanently provided. Further, the control unit 7, which controls the execution of the diagnostic program, also acts as a SCSI target during normal operation in which the diagnostic program is not executed. The mode switching between the diagnostic program execution and the normal operation is performed by operating the operation unit 5 of the changer unit 2, for example. The diagnostic program is always stored in the storage unit of the control unit 7, which controls the execution of the diagnostic program, as a ROM. On the other hand, the controller 21 of the drive unit functions only as a SCSI target and does not store the diagnostic program for the changer unit 2.

FIG. 3 shows claims 1 to 4 of the present invention.
5 is a diagnostic program flowchart of an example in which a recording medium of electronic data is taken out from the magazine 6, set in the drive unit 12, and returned from the drive unit 12 to the magazine 6 in relation to the above. In FIG. 1, first, in step S1, the transport unit 4 moves a recording medium of electronic data from the magazine 6 and inserts it into the drive unit 12 in response to a request from the control unit 7 that controls execution of the diagnostic program. In step S3 thereafter, the drive unit 12 executes ejection of the electronic data recording medium in response to a request from the control unit 7 that controls the execution of the diagnostic program to the drive unit 3. Next, in step S5, the transport unit 4 stores the electronic data recording medium ejected from the drive unit 12 in a predetermined location of the magazine 6 in response to a request from the control unit 7 that controls execution of the diagnostic program. After performing the requested operation in each of the steps S1, S3, S5, in each step of S2, S6, if the changer unit 2 detects an error in the movement, insertion, or storage by the sensor, in step S7, The control unit 7, which controls the execution of the diagnostic program, detects an abnormality. In step S4, the drive unit 12 notifies the control unit 7 that executes the diagnostic program of the abnormality. As described above, unlike the conventional example, the operation request to the changer unit 2 and the drive unit 3 is made by the control unit 7 that controls the execution of the diagnostic program of the changer unit 2, and the electronic data recording medium is ejected, moved, inserted or stored. Recovery processing such as re-execution when an error such as error occurs is processed by the control unit 7 that controls execution of the diagnostic program of the changer unit 2.

FIG. 4 shows claims 1 to 4 of the present invention.
FIG. 3 is a hardware configuration diagram inside a control unit 7 that controls the execution of the diagnostic program shown in FIG. In the figure, the SPC (2) 26, which is the protocol control unit of the interface portion with the SCSI bus, is a novel one that has not existed in the prior art, and is connected to the internal address / data bus so as to function as a SCSI initiator, and the diagnostic program EP
It is always stored in the ROM 27. On the other hand, SPC (1)
Reference numeral 25 is a protocol controller that controls the SCSI target, which is also present in the conventional example. In addition, information such as the drive section error code, control error processing time, and the number of retries is connected to the address / data bus and SR
The data is temporarily stored in the buffer of the AM 28, read by the operation of the operation unit 5, and displayed on the display unit 8.

FIG. 5 is a block diagram according to claim 4 of the present invention. In the figure, the FIFO buffer 22 is added to the SC of the configuration of claims 1 to 3 shown in FIG.
It is inserted between the SI termination circuit and the control unit 7 that controls the execution of the diagnostic program to temporarily store the SCSI bus write information,
The operation section 5 is operated to read and the display section 8 displays. The FIFO buffer 22 may use a part of the storage unit or may be provided with an independent circuit.

[0021]

The effects of the present invention described above will be described in the order of claims. In the library apparatus having the configuration according to the first aspect, the diagnostic program always provided in the changer unit can execute the diagnosis of the library apparatus by itself without the need of the host apparatus.

In the library device having the structure according to the second aspect, the library device itself can perform diagnosis, and
The changer can display the code information of the error that occurred in the drive unit, and can collect the error information of the drive unit.

In the library device having the configuration according to claim 3, diagnosis can be performed by the library device alone, and
Detailed information on the control of the drive unit up to the error can be displayed on the changer unit, and the processing time in the process up to the error and the number of retries can be analyzed.

In the library device having the structure according to the fourth aspect, the diagnosis can be performed by the library device alone, and
Information on the SCSI bus related to control of the drive unit can be displayed on the changer unit, and information collection for error analysis can be performed without using high-level measurement / analysis equipment.

[Brief description of the drawings]

FIG. 1 is a block diagram of the present invention.

FIG. 2 is an overall external view of the present invention.

FIG. 3 is a flowchart of a diagnostic program of the present invention.

FIG. 4 is a hardware configuration diagram of the present invention.

FIG. 5 is a block diagram of claim 4 of the present invention.

FIG. 6 is a block diagram of a conventional example.

FIG. 7 is a flowchart of a conventional diagnostic program.

FIG. 8 is a hardware configuration diagram of a conventional example.

[Explanation of symbols]

 1 Library Device 2 Changer Unit 3 Drive Unit 4 Transport Unit 5 Operation Unit 6 Magazine 7 Control Unit for Executing Diagnostic Program 8 Display Unit 11 Host Device 12 Drive Unit 21 Drive Unit Controller 22 FIFO Buffer 25 SPC (1) 26 SPC (2 ) 27 EPROM 28 SRAM

Claims (4)

[Claims] 1. A drive section (3) for reading and writing an electronic data recording medium, and a carrier for setting the electronic data recording medium in the drive section (3) and taking out the set electronic data recording medium. Unit (4),
In a library device (1) having a changer unit (2) containing a magazine (6) for storing a recording medium of electronic data in the same housing, a storage unit which always has a diagnostic program for the library device (1). (7) that controls the execution of the diagnostic program, including
And a changer unit (2) for providing a library device. 2. The control unit (7) which controls the execution of the diagnostic program displays error code information of the drive unit (3) on a display unit (8) of the changer unit (2). 1. The library device according to 1. 3. A control unit (7) which controls the execution of the diagnostic program, displays detailed information on control of the drive unit (3) up to an error, on a display unit (8) of the changer unit (2).
The library device according to claim 1, wherein the library device is displayed. 4. The control unit (7) which controls the execution of the diagnostic program causes the display unit (8) of the changer unit (2) to display information on the SCSI bus related to the control of the drive unit (3). The library device according to claim 1.