JPH0511936A - Data copy method for auxiliary storage device - Google Patents

Abstract

PURPOSE:To copy data to a lot of devices at high speed. CONSTITUTION:A second device 2 allocates respective various device numbers to auxiliary storage units 11 of first devices 1a-1n, a signal conversion circuit 3 is connected so as to execute conversion between the device number allocated to the own device and a set device number on an interface 5, a storage control part 10 of the second device 2 issues the selected device number to the interface 5, the signal conversion circuit 3 corresponding to this number converts the selected device number to the set device number, the correspondent auxiliary storage unit 11 is selected, and the storage control part 10 of the second device 2 writes data read from the auxiliary storage unit 11 to the selected auxiliary storage unit 11 of the first device.

Description

Detailed Description of the Invention

(Table of contents) Industrial applications Conventional technology (Fig. 7) Problems to be Solved by the Invention Means for Solving the Problems (FIG. 1) Action Example (a) Description of one embodiment (FIGS. 2 to 5) (b) Description of another embodiment (FIG. 6) The invention's effect

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a second device in which data has been written in an auxiliary storage unit and a plurality of first devices in which data has not been written in the auxiliary storage unit.
Of the auxiliary storage unit of the first apparatus, the method of copying data of the auxiliary storage unit of the first apparatus.

When a microcomputer device such as a terminal device or a workstation is shipped from a factory, it is necessary to write software in an auxiliary storage device such as a hard disk device in the microcomputer device.

In recent years, the data processing load on terminal devices, workstations and the like has increased. The reason for this is that in order to reduce the load on the host computer, distributed processing that performs some data processing on the terminal side has become mainstream from conventional batch processing, and one terminal device can be used as a word processor, It is possible to perform a plurality of jobs such as image processing.

For this reason, the terminal software is
For example, a hard disk device that has a large storage capacity, a relatively short access time, and a low cost is used as an auxiliary storage device for software, including the basic OS and the application, which reaches several tens of MB. It is common to have

The timing of writing software or data (hereinafter referred to as data) to the hard disk device is as follows.
How to write on the production line by the manufacturer before shipping the terminal device, and after loading the terminal device to the user,
There is a way to write. Recently, there is a tendency to reduce the installation man-hours at the user site, so a method of writing on the manufacturing line has been adopted, and it is desired to reduce the man-hours.

[0007]

2. Description of the Related Art FIG. 7 is an explanatory diagram of a conventional technique. A microcomputer device such as a terminal device has a basic configuration of a microcomputer 12, a main memory 13, a hard disk control circuit 10, and a disk unit 11.
Based on the software settings, the hard disk control circuit 10 and the disk unit 11 have machine numbers (ID).

As a method of writing data in the device 1 which is such a product, an additional disk device (equipment) 4 in which data has already been written is conventionally connected to a hard disk interface 5 of the device 1 and a hard disk control circuit 10 is connected. Under the control, the data of the additional disk device 4 is read, transferred to the disk unit 11 and written, and the data is copied.

That is, the additional terminal of the disk interface 5 of the hard disk is used, the additional disk device 4 is connected, the data is transferred at the disk transfer speed, and the copying can be performed easily and at high speed.

In this method, when a plurality of products 1 are connected in parallel to the additional disk device 4, the disk units 11 of the respective products 1 have the same machine number, so that multiple selection can be performed on the interface 5. As a result, normal copying cannot be performed.
I was able to connect only one product.

[0011]

However, the prior art has the following problems. Since one piece of equipment is required for each product, a large quantity of equipment is required for mass production, and the equipment cost is high.

Since the time required for copying is long with respect to one device (for example, about ten and several minutes), if the equipment is small,
When a large number of products are sent to the line, the line is stuck. Therefore, an object of the present invention is to provide a data copy method for an auxiliary storage device that can copy data to a large number of devices at high speed even if the number of facilities is small.

[0013]

FIG. 1 shows the principle of the present invention. According to claim 1 of the present invention, an auxiliary storage unit 11;
An auxiliary storage unit 11 in which a predetermined machine number is set in a second device 2 having a storage controller 10 and a processor 12
A plurality of first devices 1a to 1n having at least the above are connected, and an auxiliary for copying the data written in the auxiliary storage unit 11 of the second device 2 to the auxiliary storage unit 11 of the first device 1a to 1n In the data copying method of the storage device, different interface numbers are assigned to the auxiliary storage units 11 of the first devices 1a to 1n on the interface 5 of the auxiliary storage unit 11 of the second device 2 and the interface 5 The auxiliary storage units 11 of the plurality of first devices 1a to 1n are connected to each other via the signal conversion circuit 3 that converts the machine number assigned to itself on the interface 5 and the set machine number. Then, the storage control unit 10 of the second device 2 issues a selected machine number to the interface 5, and the signal conversion circuit 3 corresponding to the selected machine number converts the selected machine number into the set machine number. ， Select an auxiliary storage unit 11 of the first device to respond, the storage control unit 10 of the device 2 of the second
However, the data read from the auxiliary storage unit 11 of the second device 2 is transferred to the auxiliary storage unit 11 of the selected first device via the interface 5 and written.

According to claim 2 of the present invention,
Each of the first devices 1a to 1n further includes a processor 12 and a storage controller 10, and is a device that processes data using the data copied to the auxiliary storage unit 11.

According to claim 3 of the present invention, in claim 1,
The first devices 1a to 1n are auxiliary storage devices for expansion. According to a fourth aspect of the present invention, in the first aspect, among the first devices 1a to 1n, the device for which the machine number on the interface 5 and the set machine number match each other is subjected to the signal conversion. It is characterized in that the circuit 3 is not provided.

[0016]

According to the first aspect of the present invention, the first device 1a to 1n having the auxiliary storage unit 11 in which a predetermined machine number is set is added to the second device 2 having the auxiliary storage unit 11 in which data has been written. Interface 5 for multiple auxiliary storage devices
The data written in the auxiliary storage unit 11 of the second device 2 is copied to the auxiliary storage unit 11 of the first device 1a to 1n.

At this time, the same machine number is set in the auxiliary storage unit 11 of each first device in terms of software operation,
It becomes impossible to select the data transfer destination and confirm the response on the interface 5 of the auxiliary storage device, and multiple selection occurs and the operation becomes impossible.

Therefore, a signal conversion is performed in which a different machine number is assigned to each second device on the interface 5 and the machine number assigned to itself on the interface 5 and the set machine number are converted. By connecting to the interface 5 via the circuit 3, the auxiliary storage unit 11 of each first device
Even if the same machine number is set in, each first device can be identified on the interface 5, accurate data transfer and response confirmation are possible, and accurate data copy is possible.

In this case, the machine number of the auxiliary storage unit 11 of each first device can be changed according to the identification machine number of the interface 5 only during the data copy, but the machine number of the auxiliary storage unit 11 can be changed. Since it is done by the setting pin inside the unit, the machine number cannot be changed unless the disk unit 11 is taken out from the device, and the disk unit is taken out from the device before the data copy and the machine number is changed.
Return to the device, copy the data, take out the disk unit from the device again after copying the data, restore the machine number to the original,
It is not preferable because it takes time and effort to return it to the device.

In claim 2 of the present invention, the first device 1a to
1n is a device that further includes a processor 12 and a storage control unit 10 and processes data by the data copied to the auxiliary storage unit 11. Therefore, products such as terminal devices are connected in parallel and data is copied. it can. According to the third aspect of the present invention, since the first devices 1a to 1n are auxiliary storage devices for expansion, the data can be copied by connecting the expansion devices in parallel.

In claim 4 of the present invention, the first device 1a to
Since the signal conversion circuit 3 is not provided for a device of 1n whose machine number on the interface 5 and the set machine number match, the signal conversion circuit is not provided for the first device that does not require signal conversion. It is not necessary to prepare 3 and the configuration can be simplified.

[0022]

【Example】

(A) Description of one embodiment FIG. 2 is a block diagram of one embodiment of the present invention, FIG. 3 is an illustration of a hard disk connection interface of one embodiment of the present invention, and FIG. 4 is a circuit diagram of the ID conversion device of FIG. .

In FIG. 2, 1a to 1n are terminal devices to which data has not been written, and include a processor (microcomputer) 12, a main memory 13, a hard disk control circuit 10 with a machine number ID = 0, and a machine number. ID
And the disk unit 11 set to = 1.

2 is a terminal device to which data has been written,
It has a processor (microcomputer) 12, a main memory 13, a hard disk control circuit 10 with a machine number ID = 0, and a disk unit 11 with a machine number ID = 1.

Reference numeral 5 denotes a hard disk connection interface, which is composed of a SCSI interface, and is connected to the hard disk control circuit 10 of the terminal device 2 and the disk unit 11 at the connection interface and each terminal device 1a.
A connection interface connecting the hard disk control circuit 10 of 1 to 1n and the disk unit 11 is connected.

Therefore, as shown in FIG. 3, the hard disk control circuit 10 of the terminal device 2 serves as an initiator, each disk unit 11 serves as a target, and the disk unit 11 of the terminal device 2 serves as a basic unit and each of the terminal devices 1a to 1n. The disk unit 11 can be treated as an extension unit, and the identification machine number (the machine number managed by the hard disk control circuit 10 of the terminal device 2) on the interface for that is used as the disk unit 11 of the terminal device 2 having ID = 1, 1. The disk units 11 of the respective terminal devices 1a to 1n can be sequentially assigned ID = 2 to 7.

Reference numerals 3a to 3n are ID conversion devices (signal conversion circuits), and the interface 5 of each terminal device 1a to 1n.
It is provided on the side and converts the identification machine number assigned by the interface 5 and the machine number set in the disk unit 11, which will be described later with reference to FIG.

FIG. 4 shows a circuit of the ID conversion device 3a, which is for converting the interface machine number 1D = 2 and the set machine number 1D = 1. In the figure, D1 and D2 are the first and second bit data lines of the data lines DB0 to DB7 of FIG. 3, and 30 is an inverter, which is asserted when the target (disk unit) 11 outputs data from the target. An I / O signal is inverted, and an inverter 31 is used to invert the SEL signal asserted by the initiator (hard disk control circuit) 10 or the target 11 for the selection operation.

Reference numeral 32 is an AND gate, which detects a SCSI selection phase (a phase in which the initiator selects a target), and the data line D2
Signal, the SEL signal, and the inverted I / O signal are ANDed and the inverted signal is output to operate the driver 37a. 33 is an AND gate, which is a reselection phase of SCSI ( It detects the reconnection request from the target to the initiator).
The logical product of the SEL signal, the I / O signal, and the signal of the data line D1 from the device 1a is calculated, and the inverted signal is output to operate the driver 38.

An AND gate 34 is for detecting that it is not in the selection phase or the reselection phase, and takes the logical product of the inverted SEL signal and the inverted I / O signal and inverts it. A signal is output to operate the drivers 36a and 39, and 35 is an AND gate for detecting that it is not the selection phase or the reselection phase. The inverted SEL signal and the I / O The logical product of the signals and the inverted signal thereof are output, and the drivers 36b and 37b
Is what works.

Reference numerals 36a and 39 denote drivers, which output data from the AND gate 34 to the data line D from the initiator.
A device for outputting signals 1 and D2 to the data lines D1 and D2 of the device 1a, 37a is a driver, and an AND gate 3
2 outputs the signal of the data line D2 from the initiator to the data line D1 of the device 1a, and 38 is a driver, which outputs the signal of the data line D1 from the device 1a to the data line D2 of the initiator. What to do, 36
b and 37b are drivers, which output signals of the data lines D1 and D2 from the device 1a by the output of the AND gate 35.
The data is output to the data lines D1 and D2 of the initiator.

The operation of this circuit is such that in the selection phase and the reselection phase, the conversion of the machine ID between the initiator and the target (D1 = 0, D2 =
1 and D1 = 1, D2 = 0 conversion), and the others are not converted.

That is, in the selection phase in which the initiator selects the target, the SEL signal = 1,
The target ID is transmitted on the data buses DB0 to DB7, and in this case, D1 = 0 and D2 = 1.

At this time, since the I / O signal = 0, "0" is output from the AND gate 32, only the driver 37a operates, and the data line D2 from the initiator is connected to the data line D1 of the device 1a. Then, in the device 1a, the data D1 = 1, the data D2 becomes high impedance because the driver 39 of the data line D2 does not operate, the data D2 = 0, and the interface machine number “2” changes to the setting machine number “1”. Is converted

Similarly, in the reselection phase in which the target issues a reconnection request to the initiator,
Since the data D1 = 1, D2 = 0 of the device 1a, the SEL signal = 1, and the I / O signal = 1, "0" is output from the AND gate 33 and only the driver 38 operates, and the device 1a Is connected to the data line D2 of the initiator, and the data line D1 of the initiator is connected to the data line D2.
= 1 and the data D1 is the driver 36 of the data line D1.
Since b does not operate, the impedance becomes high, the data D1 = 0, and the set machine number "1" is converted to the interface machine number "2".

In other normal situations, this conversion is not done. That is, when transferring from the initiator to the device 1a, since the SEL signal = 0 and the I / O signal = 0,
“0” is output from the AND gate 34, and the driver 36
Only a and 39 operate, and the data line D from the initiator
1, 1 and 2 are connected to the data lines D1 and D2 of the device 1a, respectively, and data can be transferred without conversion.

When transferring from the device 1a to the initiator, since the SEL signal = 0 and the I / O signal = 1, "0" is output from the AND gate 35 and only the drivers 36b and 37b operate. The data lines D1 and D2 from the device 1a are connected to the data lines D1 and D2 of the initiator, respectively, and data can be transferred without conversion. Although the ID conversion device 3a has been described here, the other ID conversion devices 3b to 3n have the same configuration.

FIG. 5 is a processing flow chart of an embodiment of the present invention. The data copy program is stored in the main memory 13 of the terminal device 2, and the promoter 12 reads the program and controls the hard disk control circuit (hereinafter referred to as the control circuit) 10 to execute the data copy.

The control circuit 10 uses the machine number ID pointer n.
Is initialized to 1, and ID = 1 via the interface 5.
Select operation (selection phase). That is,
Disk unit 11 in which data has been written in the terminal device 2
Select.

Next, the control circuit 10 issues a read command to the disk 11 with ID = 1 via the interface 5. In response to this, a data transfer request is issued from the disk 11 with ID = 1, and the control circuit 10 receives this, and prepares for data reception. Disc 1 with ID = 1
After issuing a data transfer request, 1 transfers the data written in the control circuit 10, and the control circuit 10 receives this and stores it in the buffer.

The control circuit 10 uses the machine number ID pointer n.
Is updated to (n + 1), and the ID is
= N selection operation (selection phase) is performed. At this time, in the ID conversion devices 3a to 3n with ID = n, the interface ID is converted into the set machine number "1", and the disk unit 11 with the interface ID = n is selected.

Next, the control circuit 10 issues a write command to the disk 11 with ID = n via the interface 5. In response to this, the disk 11 with ID = n issues a data transfer request, and the control circuit 10 receives this, and prepares for data transmission.

Also at this time, the disk 11 with the interface ID = n outputs its own set machine number "1", but it is converted into the interface ID by its own ID conversion circuit and received by the control circuit 10.

The control circuit 10 sends the data stored in the buffer to the interface 5, and the interface ID =
n disk 11 and the transferred data is written to the disk 11.

The control circuit 10 uses the machine number ID pointer n.
Is the final machine number m (in FIG. 2, it is checked whether it has reached “7”, and if it has not reached, it returns to the step, and if it has reached, it ends.

In reality, since the data storage capacity of the control circuit 10 is smaller than the total transfer data amount, the steps 1 to 5 are repeated a plurality of times for each predetermined transfer data amount to copy to one disk 11. To do.

In this way, the data written device 2
Since data is copied to each of the data-unwritten devices 1a to 1n, it is possible to copy data to a large number of devices at the same time even if there is only one facility. Further, in this embodiment, the data written device 2 can be performed by using the same device as the product, and the device 2 can also be a product.

(B) Description of another embodiment FIG. 6 is an explanatory view of another embodiment of the present invention. Figure, Figure 2
The same parts as those shown in are indicated by the same symbols.

In this embodiment, the data written device 2
With the hard disk control circuit 10,
The machine number IDs of the disk unit 11 are set to "6" and "7".

Therefore, the data non-writing devices 1a to 1
The interface ID of n can be assigned "1" to "5", and the device 1a having an interface ID of "1"
However, the ID conversion device 3 may not be provided.

In addition to the above embodiment, the present invention can be modified as follows. Although the data non-writing device has been described as a microcomputer device such as a terminal device or a workstation, it may be an additional disk device or the like.

In FIG. 5, the example in which the data is read from the data-written disc and the writing to one data-unwritten disc is repeated, but the data is read from the data-written disc and the data is sequentially written to each disc. A method may be used.

Although the auxiliary storage device has been described as a magnetic disk device, it can be applied to other auxiliary storage devices such as an optical disk device and a cassette streamer. Although the present invention has been described with reference to the embodiments, various modifications are possible within the scope of the gist of the present invention, and these modifications are not excluded from the scope of the present invention.

[0054]

As described above, according to the present invention,
It has the following effects. Since a plurality of data-unwritten devices are connected in parallel to the data-written device to copy the data, the data can be copied to a large number of devices and the data can be copied at high speed even if the equipment is small.

Since the interface of the auxiliary storage device is used, data can be copied at high speed. In this way, even if multiple data-unwritten devices are connected in parallel to the data-written device, the interface device number and the setting device number are converted, so the setting can be performed without changing the setting device number of the auxiliary storage device to be written. Data can be easily copied.

[Brief description of drawings]

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

FIG. 2 is a block diagram of an embodiment of the present invention.

FIG. 3 is an explanatory diagram of a hard disk connection interface according to an embodiment of the present invention.

FIG. 4 is a circuit diagram of an ID conversion device according to an embodiment of the present invention.

FIG. 5 is a processing flowchart of an embodiment of the present invention.

FIG. 6 is an explanatory view of another embodiment of the present invention.

FIG. 7 is an explanatory diagram of a conventional technique.

[Explanation of symbols]

1a to 1n First device (data unwritten device) 2 Second device (data written device) 3 Signal converter 5 interfaces 10 Storage controller (hard disk control circuit) 11 Auxiliary storage unit (disk unit) 12 processors

Claims (4)

[Claims] 1. A second storage device (2) having an auxiliary storage unit (11), a storage control unit (10) and a processor (12), and an auxiliary storage unit (11) in which a predetermined machine number is set. A first device (1a-1n) having at least
Are connected to each other, and the data written in the auxiliary storage unit (11) of the second device (2) is transferred to the first device (1a).
~ 1n) to the auxiliary storage unit (11) data copy method of the auxiliary storage device, the first device on the interface (5) of the auxiliary storage unit (11) of the second device (2) Different machine numbers are assigned to the auxiliary storage units (11) of (1a to 1n), and the auxiliary storage units (11) of the plurality of first devices (1a to 1n) are assigned to the interface (5). The storage controller of the second device (2) is connected via a signal conversion circuit (3) for converting the machine number assigned to itself on the interface (5) and the set machine number. (10) issues a selected machine number to the interface (5), converts the selected machine number into the set machine number in the signal conversion circuit (3) corresponding to the selected machine number, and then corresponds to the corresponding first machine number. Auxiliary storage unit (1
1) is selected, the storage control unit (10) of the second device (2)
The data read from the auxiliary storage unit (11) of the device (1) is transferred to the auxiliary storage unit (11) of the selected first device via the interface (5) and written. Data copy method of auxiliary storage device. 2. The first device (1a-1n) further comprises a processor (12) and a storage controller (10),
2. The data copying method for an auxiliary storage device according to claim 1, wherein the device is a device for processing data by the data copied to the auxiliary storage unit (11). 3. The data copy method for an auxiliary storage device according to claim 1, wherein the first device (1a-1n) is an auxiliary storage device for expansion. 4. The signal conversion circuit (3) for a device among the first devices (1a to 1n) in which the machine number on the interface (5) matches the set machine number. The method for copying data in the auxiliary storage device according to claim 1, wherein the data storage method is not provided.