JPS6292266A - Cell control system - Google Patents

Abstract

PURPOSE:To attain effective movement control by recognizing data in a data storage means for displaying a cell operating state executive for save at each locker frame to control the movement of a data cartridge to the save-exclusive cell. CONSTITUTION:Plural locker frames 6 comprising plural cells storing the data cartridge are provided and the data cartridge is moved between cells by a carrying means 1. A communication register 5 is provided with a communication data area 5a and a reserve cell information area 5b. When other data cartridge is stored already in a cell of moving destination, the display state of the area 5b is read to an access controller 2 by a controller 3 or 4 and when the display state is idle, a saving instruction to the reserve cell is issued to the controller 2. When the saving operation is finished, the saving to the reserve cell is reported to a host device. Thus, efficient movement control is applied.

Description

[Detailed Description of the Invention] [Summary] In the cell control method, when moving a data cartridge to an evacuation-only cell in a locker frame, the usage status of the evacuation-only cell for each locker frame is stored in a register, and the evacuation-only cell is stored in a register. By recognizing in advance the empty locker frames in the dedicated cell, it becomes possible to efficiently control the movement of cartridges to the evacuation dedicated cell.

[Industrial application field]

The present invention relates to a cell control method for efficiently controlling cartridge movement to an evacuation-only cell.

With the development of information processing technology, information processing systems are becoming larger and larger. For example, if the number of magnetic tapes owned is several thousand or more, and the magnetic tape is operated more than several thousand times a day, the labor costs associated with the operation will increase. The problem is not only an increase in the number of units, but also a decrease in the operating rate due to operational errors.

Furthermore, in a large-scale online system that requires several hundred magnetic disk drives, not only the hardware cost increases but also the installation floor space is a major problem. As a countermeasure for this, a super large capacity storage device (MSS) has been developed and put into practical use. It has a capacity equivalent to many magnetic tapes,
Additionally, it is an easily rewritable storage device whose access speed is faster than that of magnetic tape and similar to magnetic disks.

This ultra-mass storage device (MSS) has a configuration as described below, that is, it has a plurality of locker frames each having cells for storing a large number of data cartridges, and data cartridges are inserted into and removed from the cells as needed.

For example, if a cell into which a data cartridge is to be placed has already stored other data, that cartridge is stored in a save-only cell (hereinafter referred to as a reserve cell). However, if this reserved cell also stores other data, the insertion operation will be repeated one after another until an empty reserved cell is detected.

It is expected that a method for efficiently controlling such reserve cells will be put into practical use.

[Prior art and problems to be solved by the invention] FIG. 4 is a block diagram illustrating a conventional example, and FIG. 5 is a diagram illustrating the structure of a rocker frame.

The block diagram in FIG. 4 illustrates the control of the transport means for moving the data cartridge between cells, and includes the accessor L, which is the transport means for moving the data cartridge between cells, the control of the accessor 1, and the control of the accessor 1. an accessor control device 2 that monitors reactions during operation; a control device 3.4 that sends control instructions for the accessor 1 to the accessor control device 2; A communication register 5 for mutually notifying each other of the contents of the communication and the control status of the accessor control device 2, and a plurality of self-registers that store a large number of data cartridges.
), which is located above the control devices 3 and 4 in the system configuration, and issues various commands to the control device 3.4 and receives reports on various commands from the control device 3.4 to control the system. It is composed of a controlling host device 7.8.

Further, as shown in FIG. 5, the rocker frame 6 includes a plurality of rocker frame units (four units #1 to #1 in this example).
The cells are designated by the rocker frame unit number, the X address (00 to OF, 1O-19) assigned to each unit #1 to #4, and the Y address (
1-C).

In addition, "R" shown in FIG. 5 is a reserve cell, and "C" is a CE.
A cell or a maintenance cell, "." indicates an invalid cell, and others indicate a general cell, respectively.

For example, when a command is issued from the host device 7 via the control device 3 to store a cartridge from a cell to a predetermined cell with a rocker frame unit number, data to be stored in another cell is already stored in the predetermined cell. In this case, the accessor control device 2 recognizes that the operation of the accessor 1 makes it impossible to store in the predetermined cell.

As a result, the accessor control device 2 notifies the control device 3 that received the move command of the information that "the storage destination cell has already stored data to be stored elsewhere." As a result, the control device 3 performs control to store the corresponding cartridge in the reserve cell "'R" of the rocker frame unit #1.

The control device 3 issues a command to the accessor control device 2 to store the cartridge in the reserve cell "R" of the rocker frame unit #1. As a result, the accessor control device 2 notifies the storage control device 2 of the reserve cell "R" shown in FIG. 5 in sequence from the bottom thereof. Since all the reserve cells "R" of Uni-Soto #1 are in use, the control device 3 sends the [Reserve to Unit #2] command to the accessor control device 2 in order to save to the reserve cell "R" of Uni-Soto #2. "Instruction to store cartridge in cell "R""
Issue.

As mentioned above, for example, the reserve cell "R" of unit #1
Even if all the cells "R" are in the used state, the access and assign 1 have to perform extra operations because they check each of the reserve cells "R" and recognize that they are all in the used state.

[Means for solving problems]

FIG. 1 is a diagram explaining the present invention in detail, with FIG. 1(A) showing a block diagram and FIG. 1(B) showing a configuration diagram of a communication register.

The block diagram of FIG. 1(A) has the same configuration as that explained in FIG. 4, but the communication register 5 consists of a communication data area 5a and a reserve cell information area 5b.

The reserve cell information area 5b stores information indicating the full state of the reserve cell "R" in each rocker frame unit #1 to #4 vehicle position.

[Effect]

Before issuing an evacuation command to the reserve cell to the accessor control device, the control device reads the information in the reserved cell information area of the communication register 5, and if there is a vacant reserve cell in the corresponding rocker frame unit, Issue an evacuation order to the reserve cell.

Also, if the reserve cell of the current rocker frame unit is full, check whether the reserve cell of the next rocker frame unit is empty and issue an evacuation command to the reserve cell of that rocker frame unit. This enables efficient movement control.

〔Example〕

The gist of the present invention will be specifically explained below with reference to embodiments shown in FIGS. 1 to 3.

FIG. 2 shows a situation diagram for displaying full information of a reserve cell, and FIG. 3 shows an operation diagram of an embodiment of the present invention. Note that the same reference numerals indicate the same objects throughout the figures.

The reserved cell information area 5b in the communication register 5 is stored in each locker frame unit # in the state shown in FIG.
Displays the usage status of reserved cells 1 to #4.

In other words, bits 0 to 3 corresponding to units #1 to #4 indicate “if there is space in the reserved cells of each unit #1 to #4.
0" is displayed, and when all the reserved cells are full, "1" is displayed according to instructions from the control devices 3 and 4.

Next, the operation of this embodiment will be explained based on the operation diagram shown in FIG. It should be noted that this operation will be mainly explained with respect to the processing of the control devices 3 and 4.

A cell full state occurs in a predetermined cell in rocker frame unit #1. As a result, an evacuation operation to the reserve cell in the nearest rocker frame unit, ie, rocker frame unit #1, is started (step 10).

When starting the evacuation operation to the reserved cell in the unit property 1, the control device 3 or 4 causes the accessor control device 2 to read the display state of the corresponding bit in the reserved cell information area 5b in the communication register 5, Determine whether the display state is "l" and if it is "1", go to step 18; if not "1", go to step 1
Proceed to step 2 (step 11).

If the display state is "0", an evacuation command to the reserve cell in the unit property 1 is issued to the accessor control device 2 (step 12).

The accessor control device 2 sequentially issues commands to move to the reserved cells within the specified unit property 1 to the accessor 1 (step 13).

The accessor control device 2 determines whether the evacuation has been completed to any of the five reserve cells, or whether all the reserve cells are in a full state, and notifies the control device 3 or 4 (
Step 14).

Next, the control device 3 or 4 determines whether or not the evacuation operation has been completed, and if so, notifies the host device 7 or 8 of the evacuation to the heli reserve cell (step 15.16).
.

If the save operation is not completed and all the reserved cells are in the full state, the bit in the corresponding reserved cell information area 5b in the communication register 5 is set to "1" (step 17).

Next, it is determined whether or not the evacuation command has been executed for other units #2 to #4, and if it has not been executed, the process moves to the next closest unit #2 to #4 and repeats from step 11. On the other hand, if the evacuation command has been executed for all units #2 to #4, the process advances to step 19 (step 18
).

In this case, all units #1 to #1 are sent to the host device 7 or 8.
It is notified that all the reserve cells #4 are in a full state and the cartridge could not be evacuated (step 19).

〔Effect of the invention〕

According to the present invention as described above, it is possible to confirm the availability of reserve cells in advance for each rocker frame unit and move the accessor to the reserve cell, so that there is an effect that efficient movement control can be performed.

[Brief explanation of drawings]

Fig. 1 is a diagram explaining the present invention in detail, Fig. 2 is a situation diagram displaying full information of a reserve cell, Fig. 3 is an operation diagram of an embodiment of the present invention, and Fig. 4 is a diagram explaining a conventional example. A block diagram and a diagram illustrating the structure of the rocker frame are shown in FIG. 5, respectively. In the figure, 1 is the accessor, 2 is the accessor control device, 3.4 is the control device, 5 is the communication register, 6 is the rocker frame, 7.8 is the host device, Show 1 Shifushi no Hitoshi No. 2
Figure Conventional stand / Iz word base 3 bar / Soft diagram 4th problem A (Itrore protrusion / 11 force clean μ circle 3 figure mouth / l cuff l / -4 = y +, horizontal direction Japanese S 2 Government Day H S 5 Rejection

Claims (1)

[Claims] A plurality of locker frames (6) each consisting of a plurality of cells for storing data cartridges are provided, and the data cartridges are moved between the cells by means of a transportation means (1), and transferred to the destination cell. If another data cartridge is already stored, in a device that has the function of evacuation to evacuation-only cells, data is displayed on the locker frame to indicate that all the evacuation-only cells for each locker frame (6) are used. further comprising a data storage means (5) for storing a data cartridge, the data storage means for displaying the use state of the evacuation-only cell for each locker frame (6) when another data cartridge is already stored in the destination cell. (5) A cell control method characterized in that the data in (5) is recognized and the movement of the data cartridge to the evacuation-only cell is controlled.