JPH04355261A - Method and device for aging inspection - Google Patents

Abstract

PURPOSE:To simultaneously execute the inspection of many devices without increasing the number of host computer and to speed up an inspection processing. CONSTITUTION:A memory storing transfer data and disk driving devices 8a to 8g having a recording means executing an inspection program based on the transfer data and holding inspection result data are the object of the inspection, the inspection program is transferred to the disk driving devices 8a to 8g from a downloading host computer 3 before inspection, and the inspection result data of the disk drive devices 8a to 8g are transferred to an uploading host computer 4 after inspection.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an aging inspection method and apparatus suitable for aging inspection of recording and reproducing devices.

0002

2. Description of the Related Art Aging tests for recording and reproducing devices are carried out by repeating recording and reproducing in a test room under predetermined conditions and checking the amount of erroneous data read at that time.

As shown in FIG. 6, the conventional aging inspection apparatus has a drive rack 2 that can be accessed in and out of the inspection room.
1 can be stored. Also, dry black 2
is provided with a connector, through which the host computer 22 and each of the stored recording and reproducing devices 21 can be connected.

[0004] Then, a drive rack 2 containing a plurality of recording and reproducing devices 21 is transported into an examination room, and a host computer 22 is connected to this drive rack 2. Then, the host computer 22 sequentially communicates with each recording and reproducing device 21 on a one-to-one basis, and each recording and reproducing device 21 performs recording and reproducing based on the inspection program of the host computer 22.

[0005]

However, according to the above configuration, one host computer 22 is required for each drive rack 2 during inspection, so the number of drives that can be inspected at one time is limited by the number of host computers 22. There was a drawback to receiving it.

[0006] Here, it is possible to increase the number of recording and reproducing devices 21 that can be stored in the drive rack 2, but communication between the host computer 22 and the recording and reproducing devices 21 is limited to one.
1, and as the number of recording/reproducing devices 21 increases, the amount of test data decreases in inverse proportion to the number, so there is a limit to the number of devices that can be stored. Therefore, in the past, almost two host computers
It is only possible to perform processing in proportion to the number of host computers 22, and the only way to perform a large number of processes at the same time is to increase the number of host computers 22.

SUMMARY OF THE INVENTION It is therefore an object of the present invention to provide an aging inspection method and apparatus that can simultaneously test a large number of host computers without increasing the number of host computers.

[0008]

[Means for Solving the Problems] In order to achieve the above object, an aging test method according to the present invention connects a download host computer and a device to be tested via a bus, and the test program is transmitted from the download host computer to the test device. Transfer it to an inspection device, and after the transfer, disconnect the bus connection between the download host computer and the device under test, and the device under test executes the aging test by itself based on the transferred test program and records this test result data. After the specified test time has elapsed, the upload host computer and the device under test are connected via a bus, the test result data is transferred from the device under test to the upload host computer, and the upload host computer transfers the test result data. This is to analyze.

[0009] Furthermore, the aging inspection device according to the present invention is capable of data transfer with a computer via a bus.
The target device is a device to be tested that has a memory that stores the transferred data and also has a recording means that executes the test program itself based on the data stored in this memory and holds the test result data. A download host computer that is connectable via a bus and that transfers a test program to the device under test, and a host computer that is connectable to the device under test and that imports test result data transferred from the device under test. , and an upload host computer that analyzes this test result data.

0010

[Operation] Connect the download host computer to the device under test before the test, disconnect the connection after the test program transfer is completed, do not connect to the host computer during the test, and connect the upload host computer to the device under test after the test. Since it is only necessary to connect and take in the test result data, it is possible to test a large number of devices to be tested at the same time, regardless of the number of download host computers and upload host computers.

[0011]

Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings. An embodiment of the present invention is shown in FIGS. 1 to 5, and this embodiment shows a case where disk drive devices 8a to 8g, which are recording and reproducing devices, are used as devices to be inspected.

FIG. 2 shows a schematic block diagram of the aging device. In FIG. 2, the examination room 1 has a temperature of
Humidity and the like are set under constant conditions, and this examination room 1 is configured to be able to accommodate a large number of dry racks 2.

The dry racks 2 are moved by a transport means (not shown) along the route shown by the arrow in FIG. 2, and the dry racks 2 that have entered the examination room 1 are discharged from the examination room 1 in that order.

The download host computer 3 is placed at the entrance of the examination room 1. The download host computer 3 has an inspection program, and this inspection program is configured to be transferable based on the flowchart shown in FIG.

The upload host computer 4 is placed on the exit side of the examination room 1. The upload host computer 4 has a determination program and the like, and takes in the test result data and processes it based on the flowchart shown in FIG.

[0016] The download host computer 3
and each SCSI of the host computer 4 for uploading
(Small Computer System Interface) 5
are connected to external buses 6, respectively, and each bus 6 is connected to
A male connector 7 is provided at one end of each. Further, the upload host computer 4 is provided with a barcode reading section 19.

FIG. 1 shows a diagram showing the connection between the drive rack 2 and each host computer 3, 4. In FIG. 1, the drive rack 2 is configured to accommodate seven disk drive devices 8a to 8g. The housed disk drive devices 8a to 8g are connected via a bus 6 via each SCSI 9, and a female connector 10 is provided at one end of the bus 6. Moreover, above each disk drive device 8a to 8g, there is a bar code 1 indicating the product number, etc.
1 is pasted.

FIG. 3 shows disk drive devices 8a to 8g.
A circuit block diagram of is shown. In Figure 3, R.A.
An inspection program transferred via the SCSI 9 is written in the M12, and inspection write data and the like are written in the ROM 13. CPU14 is RAM1
2 and ROM 13, and commands the driving of the servo circuit 15 and read/write means 16.

The servo circuit 15 controls the rotation motor of the disk 17 based on drive commands from the CPU 14. Data is recorded on this disk using, for example, a magneto-optical recording method. When the read/write means 16 receives a write command and test write data etc. from the CPU 14, it writes the test write data, etc., and when it receives a read command from the CPU 14, it writes it to the disk 17. Read the data.

The read data is output to the comparator 18, and the comparator 18 compares the write data of the ROM 13 with the read data. If both data do not match, the comparator 18 outputs an error signal to the CPU 14, and the CPU 14 sends a write command to the read/write means 16 to write the error contents to a predetermined position on the disk 17. In this embodiment, the disk 17 also serves as a recording means for recording test result data.

The operation of the above configuration will be explained below with reference to the flowcharts of FIGS. 4 and 5. When the drive rack 2 containing the disk drive devices 8a to 8g is transferred to the entrance of the examination room 1, the male connector 7 of the download host computer 3 is connected to the female connector 10 of the drive rack 2.
Connect to. Then, the download host computer 3 sends a request sense to the seven disk drive devices 8a to 8g, and if there is a reply or if the contact is normal even if there is no reply, the test program is transferred.

[0022] When the transfer of this inspection program is completed, S
A CSI bus disconnect signal is sent, and then the male connector 7 of the download host computer 3 is disconnected from the female connector 10 of the drive rack 2, and the drive rack 2 is placed in the examination room 1.

Each disk drive device 8a to 8g is an SC
After receiving the disconnect signal from the SI bus, execution of the inspection program is started, and error data is accumulated on the disk 17 by repeating writing and reading from the disk 17.

When the designated testing time has elapsed, the drive rack 2 is discharged from the testing room 1 to the exit, and the male connector 7 of the uploading host computer 4 is connected to the drive rack 2.
Connect to the female connector 10 of

Next, each disk drive device 8a to 8g
The barcode 11 is read, and when the barcode reading is completed, a reconnect signal is sent to each disk drive device 8a to 8g. The disk drive devices 8a to 8g that do not respond to this reconnect signal determine that it is an error and perform error processing, and for the disk drive devices 8a to 8g that do respond, the error data written on the disk 17 is read out. This error data is taken in via the bus 6.

[0026] If the captured error data is within the permissible standards, it is determined to be "OK" and the relevant disc drive devices 8a to 8g are instructed to eject the disc. On the contrary, “N
If it is determined that the error is "G", error processing is performed, for example, a command is given to turn on a red LED, without giving a command to eject the disc. After the inspector selects the eject mode for the disk drive devices 8a to 8g whose red LEDs are lit and takes out the disk 17, connect the male connector 7 of the upload host computer 4 to the female connector of the drive rack 2. If you separate it from 10, it will be completed.

That is, before the test, the download host computer 3 is temporarily connected to the drive rack 2 at the entrance of the test room 1, and after the test, the upload host computer 4 is temporarily connected to the drive rack 2 at the exit of the test room 1. Since there is no need to connect to a host computer during testing, a large number of computers can be tested simultaneously regardless of the number of host computers.

In this embodiment, the case where the devices to be inspected are disk drive devices 8a to 8g has been explained, but it includes a memory for storing transfer data, a means for executing an inspection program based on this transfer data, and a means for executing the inspection result data. This can be applied to all devices having a recording means for holding data.

[0029]

[Effects of the Invention] As described above, according to the present invention, since the aging test is performed by the so-called download method,
This has the advantage that a large number of host computers can be tested simultaneously regardless of the number of host computers, and the speed of testing processing can be sped up.

[Brief explanation of drawings]

FIG. 1 is a diagram (embodiment) showing the connection between a drive rack and each host computer.

FIG. 2 is a schematic block diagram (embodiment) of an aging device.

FIG. 3 is a circuit block diagram (embodiment) of a disk drive device.

[Figure 4] Flowchart diagram at the time of download (example)
.

[Figure 5] Flowchart diagram for uploading (example)
.

FIG. 6 is a block diagram of an aging inspection device (conventional example).

[Explanation of symbols]

3... Host computer for downloading, 4... Host computer for uploading, 6... Bus, 8a to 8g... Disk drive device (device to be inspected), 12... RAM (memory), 17... Disk (recording means).

Claims (2)

[Claims] 1. A download host computer and a device to be tested are connected via a bus, the test program is transferred from the download host computer to the device to be tested, and after the transfer, a bus between the download host computer and the device to be tested is connected. The device under test executes the aging test by itself based on the transferred test program, records and retains the test result data, and connects the host computer for uploading and the device under test via the bus after the designated test time has elapsed. An aging inspection method characterized in that the test result data is transferred from the device to be inspected to the upload host computer, and the upload host computer analyzes the test result data. [Claim 2] It is capable of data transfer with a computer via a bus, has a memory for storing the transferred data, and executes an inspection program by itself based on the data stored in this memory to generate the inspection result data. A download host computer that is intended for a device under test and has a recording means for storing it, is connectable to the device under test via a bus, and transfers a test program to the device under test; can be connected to the device under test, and imports the test result data transferred from the device under test,
An aging inspection device comprising an upload host computer that analyzes the inspection result data.