JP3020587B2 - Method and method for controlling use of storage medium transport device in library device - Google Patents

Description

Detailed Description of the Invention [Table of Contents] Overview Industrial application field Conventional technology (Fig. 13) Problems to be solved by the invention Means for solving the problem (Figs. 1-4) FIG. 6) Embodiment (FIGS. 7 to 12) Effects of the Invention [Outline] The storage is performed between a storage device that performs read / write processing on a mounted portable storage medium and a storage shelf that stores the portable storage medium. A storage medium transport device use control method and method of a library device for controlling use of a plurality of media transport devices for transporting media, which is economical, convenient, and efficient. The purpose of the present invention is to propose a use control method and method in which, when use requests for a storage medium transport device conflict, the use request issued first is validated and conflicting use requests other than the use request are enabled. Nothing When the storage medium transport device transports the storage medium in response to a valid use request or detects whether each storage medium transport device carries a portable storage medium at present, the portable device indicating the detection result is provided. The information is notified to a storage medium transport device other than the transport device, and the notified other storage medium transport device retains the notified portable information and, if a failure occurs, the occurrence of the failure. The portable information held in a storage medium transport device other than the storage medium transport device described above is read, and a corresponding process is performed based on the portable information.

[Industrial applications]

The present invention relates to a use control method and method of a storage medium transport device of a library device, and in particular, between a storage device that performs write / read processing on an attached portable storage medium and a storage shelf that stores the portable storage medium. The present invention relates to a use control method and method for a storage medium transport device of a library device that controls use of a plurality of media transport devices for transporting the storage medium.

[Conventional technology]

Conventionally, there has been a use control method of a storage medium transport device of a library device as shown in FIG.

As shown in the figure, the present method has three media transport units 252 ₀ , 252 ₁ , and 252 ₂ for transporting portable storage media, and a transport unit use control unit for controlling use between the media transport units. ARC25
1,251, a storage device for writing and reading the portable storage medium, and a use control method for a storage medium transport device of a library device having a storage shelf for storing the portable storage medium.

As the present system is shown in the figure, the media transport 252 _i; i =
0, 1, and 2 have interfaces 252a _i and 252b _i for controlling connection with a plurality of the ARCs 251 _i, and when there is a use request for the ACC of the medium transport unit from each ARC, the use request is issued. cross call exclusive control circuit 254 to be used for controlling the conflict _0, 254 _1, 254 ₂ are provided.

The exclusive control circuit 254 _i is the first ARC2
Enable only requests from 51 _i, so that control is performed to disable the request other than the ARC251 _i.

[Problems to be solved by the invention]

Meanwhile, more than in the conventional method as described, as described above, the if the use request from a plurality of ARC251 compete the conflict by cross call exclusive control circuit 254 _i provided to each ACC We are working on a solution.

Therefore, it is necessary to provide a cross call exclusive control circuit 254 _i to the ACC, not only the number of parts is increased, the signal for performing the exclusive control prepared in accordance with the of the system protocol transmissions other ACC And the processing of the interface of each ACC becomes complicated.

On the other hand, when a power interruption or an interface failure occurs in the ACC, if the storage state of the storage medium cannot be accurately transmitted to the ARC, the recovery operation by the replacement ACC cannot be performed properly. Had.

That is, if the failure occurs before the movement of the medium, the ARC performs the re-execution operation by the replacement ACC, but if the medium is moving, the ARC controls the medium conveyance device only by the replacement of the ACC. The use of the storage medium is also reported to the host device.

Therefore, there is a problem that the operation to be performed by the ARC cannot be determined when the storage medium holding state is unknown due to the failure of the ACC.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has a simple structure. A storage medium of a library device capable of reliably and efficiently controlling use of a plurality of storage medium transport devices. An object of the present invention is to provide a method and a method for controlling the use of a transport device.

[Means for solving the problem]

In order to solve the above technical problems, the first invention is, as shown in FIG. 1, composed of a storage device for writing and reading a mounted portable storage medium and a storage shelf for storing the portable storage medium. a plurality of media transport 2 _i for conveying the storage medium between; i = 0,1, ... n and, conveying section between the control unit 1 controls the use between the media transport 2 _{i i; i} = 0 , 1,... N, in the usage control method of the storage medium transport device of the library device, when the use request of the transport unit 2 _i from the transport unit control unit 1 _i conflicts, the first transport unit A cross-call exclusive control circuit 3 is provided for instructing the inter-transport-unit control unit 1 _i to enable the use request from the inter-unit control unit and invalidate the conflicting use requests other than the use request.

As shown in FIG. 2, a second aspect of the present invention provides a plurality of portable storage media for transferring the storage medium between a storage device that performs a write / read process on the mounted portable storage medium and a storage shelf that stores the portable storage medium. In the method for controlling the use of a storage medium transport device of a library device which controls the use of a medium transport device of the present invention, if the use requests for the storage medium transport device conflict (S
1), the use request issued first is made valid, conflicting use requests other than the use request are invalidated (S2), and the storage medium transport device receives the valid use request and transports the storage medium (S2). S3) It is.

As shown in FIG. 3, a third aspect of the present invention relates to a plurality of transportable storage media for writing / reading to / from a mounted portable storage medium and a storage shelf for storing the portable storage medium. media transport 52 _{i; i} = 0,1, ... n and, conveying section between the control unit 51 _i for controlling the use between the media transport 52 _i; i = 0,
1, ... in the use control method of the storage medium conveying apparatus of the library apparatus and a n, whether the transport unit 52 ₀ to one of at least the transport unit 52 _i is mobile currently portable storage medium the storage medium portable detection unit 53 ₀ for detecting the provided other than the detection unit 53 ₀ storage medium conveying device 50 of the portable information is detected result with the transport unit 52 ₀ and the conveying section between the control unit 51 _{0 0,} Other medium transport unit _52i and transport unit control unit 51
a portable information notification unit 54 ₀ to notify the storage medium conveying apparatus 50 _i with _i, holds the portable information notified by the mobile information notification section 53 ₀ of the storage medium conveying apparatus 50 ₀ portable information retaining unit 55 _i
At least, it is provided on each of the storage medium conveying apparatus 50 _i, when a failure occurs, the portable information holding section of the fault occurred storage medium conveying device 50 _non-zero storage medium conveying device 55 _i
Reads the portable information regarding conveying device failure from is the corresponding process fault situation recognition processing unit 57 _i do what said provided on each transport unit between the control unit 51 _i.

In the fourth invention, as shown in FIG. 4, the portable storage medium is transported between a storage device that performs write / read processing and a storage shelf that stores the portable storage medium. In the usage control method of the storage medium transport device of the library device that controls the use of the plurality of storage medium transport devices, when it is detected whether each storage medium transport device currently carries a portable storage medium (S51), The portable information indicating the detection result is notified to the other storage medium transport device other than the transport device (S52), and the other storage medium transport device that has received the notification holds the notified portable information (S5).
3) When a failure occurs, the portable information held in the storage medium transport device other than the failed storage medium transport device is read out (S54), and a corresponding process is performed based on the portable information (S54). S55)

[Action]

The method and method according to the first and second inventions operate as follows.

In step S1, for example, when there is a use request from the inter-transport-unit control unit 1 to the medium transport unit 2, the use request is input to the cross-call exclusive control circuit 3.

At this time, if the exclusive control circuit 3 determines that the use request conflicts, the exclusive control circuit 3 determines in step S2 the use request of the inter-transport-unit control unit 1 to which the earliest use request has been issued. Only enable and disable use requests other than the use request.

In step S3, the storage medium is conveyed according to the use request of the inter-conveyance unit control unit.

On the other hand, a description will be given of a usage control method and method of the storage medium transport device of the library device according to the third and fourth inventions.

In step S51, the storage medium portable detection unit 53 ₀ performs detection of whether the storage medium is portable in the storage medium conveying apparatus 50 _0.

In step S52, the portable information is the detection result medium transport device 50 _i other than ₀ the medium transport device 50; informs the i ≠ 0.

It can notify whether the medium conveying state the medium transport device 50 ₀ if a fault such as power failure to the apparatus 50 ₀ occurs is portable storage medium to the conveying section between the control unit This is because proper measures cannot be taken.

The storage medium transport device that has received the notification in step S53 holds the portable information as the detection result.

When the storage medium conveying apparatus 50 ₀ in step S54 fails, the fault status recognition processor 57 ₀ like holding a portable information storage medium conveying apparatus 50 _{i nonzero} storage medium conveying apparatus 50 failed look at the portable information held in section 55 _i, generated conveying device failure to recognize whether or not the portable storage medium, wherein the fault condition recognition of the conveyor section between the control unit 51 _i in step S5 processing unit 57 _i would perform corresponding processing.

Here, the corresponding processing is, for example, when the storage medium transport device in which the power failure has occurred holds the medium, performs the replacement processing and ends.

On the other hand, the storage medium conveying apparatus 50 ₀ the failed when not carrying the portable storage medium is still being determined that the storage medium is not drawn off, after the replacement process was replaced The storage medium transporting device performs the extraction and transport of the storage medium again.

As described in claims 5 and 6 and as shown in FIGS. 5 and 6, the portable information notifying section and the storage medium portable detecting section may be provided in all the storage medium transport devices, and the portable information holding section may be provided. The unit may be provided in the medium transport unit or may be provided in the control unit between the transport units.

〔Example〕

 Next, examples of the present invention will be described.

FIG. 7 shows an overall view according to the first embodiment (also a second embodiment).

As shown in the figure, the system according to the present example is a host that issues a write and read instruction to the library device 30.
31 and 32, channels 33 and 34, and a library device 30 as an external storage device.

Further, as shown in the figure, the library device 30 controls writing and reading to and from storage devices 37, 38, and 39, which will be described later, based on instructions from the hosts 31 and 32 via the channels 33 and. (DIRECTOR) 35,36 that issue a move command to control the use of one storage medium transport device
When, a main storage medium conveying device 10 _0, secondary storage medium conveying device 10 ₁
41 ₀ , 41 for supplying a current to each storage medium transport device.
_{And 1} .

Further, in the first embodiment, the in each storage medium conveying device 10 _0, 10 ₁ as shown in the figure, each said DIR3
Based on the instructions of 5,36, more specific control on the medium transport units 12 ₀ , 12 ₁ , for example, the inter-transport unit control that performs control so as to use the media transport device closer to the destination of movement and ARC11 _0, 11 ₁ of a part 1 _0, 1 _1, based on an instruction of the ARC, further a ACC18 _0, 18 ₁ as a medium conveyance control unit that performs a specific control, by the control of the ACC, variable transport and cartridges conveyor type storage medium sampling, and each having a mechanism part 16 _0, 16 ₁ directly performs the operation of mounting the like.

Further, in this embodiment, as shown in the drawing, the library apparatus 30, when the use request for the media transport 12 ₀ from the ARC11 _0, 11 ₁ are conflicting earliest ARC11
The instruction to enable the use request to ACC18 ₀ from ₀ , 11 ₁ and disable the conflicting use request other than the use request
Having a cross call exclusive control circuit 13 for performing relative C11 ₀
A DICU (DEVICE INTERFACE UNIT) circuit 14 is provided directly connected to the ARC.

 The DICU circuit 14 is shown in FIG.

As shown in the figure, the DICU circuit 14 the ARC11 _0, 11 ₁
Are transmitting units 14b ₀ , 14c ₀ , 14b ₁ , 14c ₁ and receiving units 14a ₀ , 14a ₁
Connected through.

Cross call exclusive control circuit 13 provided in DICU circuit 14
Is shown in detail in FIG.

The exclusive control circuit 13 comprises various logic elements 13a to 13p as shown in FIG.

 Next, the operation of the first embodiment will be described.

In the first embodiment, the use request for ACC18 ₀ as a medium conveying device control unit for controlling the medium conveying device from Fig. 10 (a) ARC11 ₀ is the transport unit between the control unit in the ARC11 when there before the use request from _1, which has shown that employs the use request from ACC18 ₀ preferentially, the relative ARC11 _1, grant signal ACC
Enable 0 signal “1” signal is output and ACC18 ₁ is AC
The C Busy 0 signal “1” signal is output.

Further, ARC11 ₀ and AR in FIG (b) with respect to the ACC0
When the use request conflict simultaneously from C11 ₁ is indicative that it has to give priority to use request for ACC18 _0.

That is, in this case, as in the case of FIG.
To said ARC11 _0, is output grant signal ACC Enable signal "1" signal, the ACC Busy signal "1" that the signal is outputted for ACC18 _1.

Further, in FIG. (C) is, for ACC18 _0, shows a timing chart when the use request from the ARC11 ₁ precedes use request from ARC11 _0, the relative ARC11 _1, use permission signal ACC Enable 1 signal " 1 "signal is output, ACC Busy 1 signal for ACC18 _1" to 1 "that the signal is output.

 Next, a second embodiment will be described.

This embodiment, as shown in FIG. 11, the media transport device 10 _0, 10 ₁ of the first embodiment shown in FIG. 7, 11 storage medium conveying device 50 shown in FIG. _0, 50 ₁ Replace with the DICU
The circuit 14 is removed, and each medium transport device is provided with each medium transport device 50 and controls the use between the media transport units 152 ₀ , 152 ₁ as shown in FIG. and ARC151 _0, 151 ₁ of the transport unit between the control unit that performs, and has actually the mechanism unit 56 _0, 56 ₁ for conveying the portable storage medium, and a ACC158 _i for controlling the said mechanism.

The mechanism unit 56 is provided with a storage medium carrying detection unit 153 for detecting whether or not the medium conveyance device 150 is carrying a portable storage medium at present, and further, in the ACC 158 _i , as shown in FIG. As described above, the MPU performing various instructions of the medium transport device 150
15a and a control circuit 1 for performing drive control on the mechanism section 56
And 52c, to ACC158 _i other storage medium conveying apparatus, said portable information notification to notify the mobile information is the detection result of the detecting section 153 provided in the storage medium conveying apparatus 150 to another storage medium conveying device A register 154 as the unit 54, another register 152b, and an FF circuit 155 as the portable information holding unit 55 for holding portable information from another storage medium transport device 150;
Is provided in each of the medium transport devices 150, and when a failure occurs, the portable information held in the FF circuit of the storage medium transport device other than the failed storage medium transport device is read, and a corresponding process is performed. Failure status recognition processing unit 15
7 _j is provided in the ARC 151 ₀ , 151 ₁ as the inter-transportation-unit control unit 51 _j .

 Next, the operation of this embodiment will be described.

As shown in FIG. 12, when the main medium transport unit 52 receives the transport command, the main medium transport unit 52 moves from the location where the command is received to the storage shelf storing the corresponding cartridge, and moves the cartridge from the position of the corresponding storage shelf to the cartridge. Select and take out.

Before removing the cartridge, the portable detection unit 153
Does not carry a portable storage medium, the storage medium carrying detection unit of the medium transporting unit detects that the storage medium is not carried, and the portable information notifying unit is a secondary storage medium transporting device that is another storage medium transporting device. The portable information is notified to the storage medium transport device. The notification is sent to the portable information holding unit.
This is performed by sending an RST signal (reset signal) to the FF circuit 155.

The FF circuit of the secondary storage medium transport device
When the RST signal is received, the portable information held up to now is erased by the signal and the portable information indicating that the main storage medium transport device does not carry a portable storage medium is retained.

Thereafter, the storage medium transport device takes out the cartridge from the designated location on the storage shelf. When the medium transport device takes out the cartridge, the register as the portable information notification unit of the medium transport device sends a SET signal as portable information to the FF flop of the portable information holding unit of another storage medium transport device. Will be.

Upon receiving the SET signal, the other storage medium transport device holds “1”.

When the storage medium transport device takes out the cartridge as the storage medium, it transports the cartridge to a storage device that performs writing and reading.

When the storage medium transport device mounts the cartridge on the storage device and does not carry the cartridge, the storage medium transport device sends an RST signal to the flip-flop as the portable information holding unit of the another sub-storage medium transport device. Thus, the held portable information “1” is converted to “0”.

Therefore, when a failure such as a power failure occurs in the main storage medium transport device and the device is stopped, the failure status recognition processing unit of the ARC is held in the portable information storage unit of the secondary medium transport device. The corresponding process is performed based on the portable information.

In other words, when the main storage medium transport device carries a portable storage medium, only the replacement process (recovery operation) with the secondary storage medium transport device is performed, but the main storage medium transport device can be used. If the portable storage medium is not carried, the replacement processing (recovery operation) is performed, and then the processing is performed again by the replaced secondary storage medium transport device.

As described above, in the past, in the event of a power failure, the system of the library device was shut down and repaired by the maintenance worker (CE). However, in the second embodiment, the system is stopped. Without significantly improving the reliability.

Further, in the first embodiment, a cross-call exclusive control circuit is provided so as to be connected to the inter-transport-unit control unit without providing a cross-call exclusive control circuit in each storage medium transport device. Further, in the second embodiment, a means for directly communicating without providing a communication line between the medium transport units is provided, and portable information is transmitted by transmitting a set / reset signal to the FF circuit. .

Therefore, in the first and second embodiments, the interface circuit does not require the trouble of performing data conversion in accordance with the communication protocol, thereby reducing the size of the control circuit and the cost of the device such as the number of cables. It will contribute to down.

〔The invention's effect〕

As described above, in the first and second inventions, when use requests conflict with each other, only the use request from the inter-transportion-unit control unit that has received the first use request is validated, and other than the use request. A cross-call exclusive control circuit for invalidating a use request is directly connected to the inter-transport-unit control unit to control use request competition, and is not provided in each storage medium transport device.

Therefore, according to the first and second aspects of the present invention, the circuit for achieving the cross call function is remarkably omitted, and only one interface cable is required.
The number of cables can be reduced, which contributes to economy and workability.

Further, in the third and fourth inventions, a portable information detecting unit is provided in each of the storage medium transport devices, a portable information notifying unit for notifying portable information, and a portable information holding unit for holding portable information. Is provided in each storage medium transport device.

Therefore, when a failure such as a power failure occurs in each storage medium transport device, it is possible to respond to the failure quickly and efficiently by looking at the portable information provided in the device.

As described above, according to the first, second, third, and fourth inventions, an easy-to-use and efficient library device can be provided.

[Brief description of the drawings]

FIG. 1 is a block diagram of the principle of the first invention, FIG. 2 is a flowchart of the principle of the second invention, FIG. 3 is a block diagram of the principle of the third invention, and FIG. FIG. 5 is a block diagram showing an embodiment according to the third invention, FIG. 6 is a block diagram showing another embodiment of the third invention, and FIG. 7 shows a library apparatus according to the embodiment. Block Diagram,
FIG. 8 is a block diagram showing a cross-call exclusive control system according to the first embodiment, FIG. 9 is a diagram showing a cross-call exclusive control circuit according to the first embodiment, and FIG. 10 is a first embodiment. Timing chart of the cross call exclusive control circuit according to
FIG. 11 is a block diagram according to the second embodiment, FIG. 12 is a timing chart according to the second embodiment, and FIG. 13 is a block diagram according to a conventional example. 1 (11) ... inter-transport section control section (ARC) 2, 12 ... medium transport section 3, 13 ... cross-call exclusive control circuit 10, 50 ... storage medium transport apparatus 54 ... portable information notification section 53 ... … Storage medium carrying detection unit 55… Portable information holding unit 57… Failure situation recognition processing unit

Claims (6)

(57) [Claims] A plurality of medium transport units (2 _i ;) for transporting the storage medium between a storage device that performs a write / read process on the mounted portable storage medium and a storage shelf that stores the portable storage medium. i = 0, 1,... n) and an inter-transport-unit control unit (1 _i ; i = 0, 1,... n) for controlling the use between the medium transport units (2 _i ). In the usage control method of the storage medium transport device, when the use request of the transport unit (2 _i ) from the inter-transport unit control unit (1 _i ) conflicts, the use request from the earliest transport unit control unit. And a cross-call exclusive control circuit (3) for instructing the inter-transport-unit control unit (1 _i ) to enable the inter-transport-unit control unit (1 _i ) to enable the use request other than the use request. Use control method of storage media transport device. 2. Control of the use of a plurality of medium transport devices for transporting storage media between a storage device that performs writing and reading processing on a mounted portable storage medium and a storage shelf that stores the portable storage media. In the method for controlling the use of a storage medium transport device of a library device, the use request issued to the storage medium transport device conflicts (S1), and the use request issued first is validated, and a conflict other than the use request occurs. A use control method for a storage medium transport device of a library device, wherein the use request is invalidated (S2), and the storage medium transport device transports the storage medium in response to a valid use request (S3). 3. A plurality of medium transport units ( _52i ; _52i ; 52) for transporting the storage medium between a storage device that performs read / write processing on the mounted portable storage medium and a storage shelf that stores the portable storage medium. .. n) and a control unit between transport units (51 _i ; i = 0, 1,... n) for controlling the use between the media transport units (52 _i ). In the usage control method of the storage medium transport device, a storage medium transporter that detects whether the transport unit (52 ₀ ) currently carries a portable storage medium in at least one of the transport units (52 _i ). detection unit (53 ₀₎ provided, the detection unit (53 ₀₎ of the detection result the transport unit to the portable information is (52 ₀₎ and a storage medium conveying apparatus having a conveying section between the control unit (51 ₀₎ (50 ₀ ), A storage medium transport device ( _5i ) having another medium transport unit ( _52i ) and a transport unit control unit ( _51i ).
0 portable information notifying unit that notifies the _i) and (54 _0), the storage medium conveying device (50 ₀₎ of the portable information notification unit (53 ₀₎ mobile information holding unit for holding a portable information notified by (5
5 _i ) is provided at least in each storage medium transport device (50 _i ), and when a failure occurs, the portable information holding unit (50 _o ) of the storage medium transport device other than the failed storage medium transport device (50 ₀ ) Five
5 _i ), the portable information relating to the transporting apparatus in which the failure has occurred is read out, and the failure situation recognition processing unit (57
_i ) is provided in each of the inter-transport-unit control units (51 _i ). 4. Use of a plurality of storage medium transport devices for transporting storage media between a storage device that performs writing and reading processing on a mounted portable storage medium and a storage shelf that stores the portable storage media. In the usage control method of the storage medium transport device of the library device that performs the control of the above, when it is detected whether or not each storage medium transport device currently carries a portable storage medium (S51), the portable information indicating the detection result is transmitted. The other storage medium transport device other than the transport device is notified (S52), and the notified other storage medium transport device retains the notified portable information (S53) and, when a failure occurs, Then, the portable information held in the storage medium transport device other than the failed storage medium transport device is read (S54), and a corresponding process is performed based on the portable information (S55).
A use control method of a storage medium transport device of a library device. 5. A plurality of medium transport units ( _62i ; _62i ; 62h) for transporting storage media between a storage device that performs read / write processing on the mounted portable storage media and a storage shelf that stores the portable storage media. i = 0, 1,... n) and an inter-transport-unit control unit (61 _j ; j = 0, 1,... n) for controlling use between the medium transport units (62 _i ). in use control method of the storage medium conveying apparatus, a storage medium portable detection unit to which the media transport to the media transport (62 _i) detects whether or not the mobile currently portable storage medium (63 _i) provided , the detection unit (63 _i) of the detection result the transport unit to the portable information is (62 _i) other storage media transport other than (62 _j) notified to the mobile information notification unit and (64 _i), the storage medium portable information holding unit for holding a portable information notified by the mobile information notification unit of the conveying device _{(60 i) (63 i)} (6
_5j ) is provided in each storage medium transport device ( _60i ), and when a failure occurs, the transport device in which a failure has occurred from a storage medium transport device other than the failed storage medium transport device ( _60i ) Read out the mobile information about ( _60i ),
Using control scheme corresponding processing fault situation recognition processing unit for performing (67 _i) a storage medium conveying apparatus of the library apparatus according to claim 3, characterized in that provided in the transport unit between the control unit (61 _i). 6. A plurality of media transport for transporting the storage medium between a storage shelf for storing a memory device and a portable storage medium to the portable storage medium attached performing write and read process (72 _i; i) of a library device having a transport control section (71 _j ; j = 0, 1,... n) for controlling use between the media transport sections (72 _i ). In the usage control method of the storage medium transport device, in the transport unit (72 _i ), the medium transport detection unit (73) detects whether the transport unit currently carries a portable storage medium.
_i) The provided, the detection unit (73 _i) of the transport unit between the control unit of the detection result the conveying device portable information is (70 _i) other than the other storage medium conveying device (70 _j) to (71 _J) mobile information notification unit to be notified (74 _i)
And a portable information holding unit (75 _j ) for holding the portable information notified by the portable information notifying unit (74 _i ).
0 transport unit between the control unit of the _i) is provided on the (71 _i), when a failure occurs, the storage medium conveying device failure (70 _i) other than the storage medium conveying device (70 _i) from the failure occurs reads the portable information relating to the transport device, fault status recognition processing unit that performs corresponding processing (77 _i), characterized in that provided in the transport unit between the control unit (71 _i) according to claim 3 library apparatus according Use control method of storage media transport device.