JP3482344B2 - Data recording and / or reproducing system having a disk drive device - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a data recording and / or reproducing system having a disk drive. 2. Description of the Related Art The general configuration and operation of a data recording and / or reproducing system having a conventional disk drive device will be described. First, the configuration will be described with reference to FIG. The system 10 includes one or two or more of the disk drive device 12 ₁ to 12 _n (n is a natural number), these disk drive 12 ₁ to 12 _n and transmission lines (SC
SI [Small Computer System Interface] interface, etc.) 14 through the connected, and a host computer 16 for transmitting and receiving data to and from the disk drive device 12 ₁ to 12 _n. Incidentally, the disk drive device 12 ₁ to 12 _n may be a reproduction-only apparatus of the data from the disk, and write function of data that can record data transferred from outside to the CD-R or the like also has both It may be a recording / reproducing device. Further, when the transmission line 14 is a SCSI interface, since the number of devices connectable on the same transmission path 14 is eight, excluding the host computer 16 disk drive 12 ₁ to 12 ₇ in the seven is there. This system 1
0, CD-ROM as a disc in the disc drive apparatus _{12 1 ~12 n, CD-R} , if wearing the CD-RW or the like, and functions as an external database server of a large capacity. Next, the operation will be described with reference to FIG.
When the power of the system 10 is turned on, first, the disk drive device 12 ₁ to 12 _n waits for the disk 18 ₁ ~ 18 _n are mounted (step 100). Then, when the disk 18 is mounted, or before the disk 18 is mounted.
Is installed, each disk drive 1
2 _{1 to} 12 _n read the disk address data of the disk and store it in the respective internal memories (Step 1)
02). The disk address data is TOC
(Table Of Contents) Data, CD-R and CD-R
In the case of W, PMA (Progra
m Memory Area) Data and the like. The same applies hereinafter. Next, the read disk address data is transferred to the host computer 16 via the transmission line 14 (step 10).
4). The host computer 16 stores the received disk address data in the internal memory. The storage operation of the disk address data of each of the mounted disks into the respective internal memories of the disk drive devices 12 _{1 to} 12 _n as described above, and the internal memory of the host computer 16 of the disk address data of each disk The operation of storing data in the memory is referred to as an initialization operation. [0004] As a result of this initialization operation, the respective disk address data of the disks 18 ₁ to 18 _n mounted on the disk drives 12 _{1 to} 12 _n as described above are transferred to both the disk drives 12 _{1 to} 12 _n and the host computer 16. Thus, normal operations such as an operation of reproducing data from the disk in accordance with an instruction from the operator and an operation of recording data to the disk can be performed (step 106). This normal operation is performed when the power of the system 10 is turned off or when the disk drive 12 ₁
This is possible until the disc mounted on the discs 12 _n is ejected. In a case where the power supply of the system 10 or turned OFF, also the disc 18 loaded into the disc drive device 12 ₁ to 12 _n is discharged (Step 11
0), the disk address data stored disk in the disk drive device 12 ₁ to 12 _n and the host computer 16 is cleared (step 112). [0005] However, recording and / or recording of data having the above-mentioned disk drive device is performed.
Alternatively, the reproduction system 10 has the following problem. Disk drive 12 ₁ to 12 _n and the host computer 16, or the power supply system 10 is turned OFF, also when the disk mounted on the disk drive apparatus 10 is ejected, the disk drive device 12 ₁ to 12
_n and the disk address data of the disk stored in the host computer 16 are cleared. Therefore, when the power of the system 10 is turned on or when the disk is mounted again, the disk address data is always read from the mounted disk and stored in the internal memory before the disk is played or recorded. The read data is transferred to the host computer, and the host computer also performs an initialization operation of storing the data in the internal memory. However, in particular, the time required for each of the disk drive devices 12 _{1 to} 12 _n to read the disk address data from the disk is relatively long (for example, about 10 seconds), and as a result, the reproduction of data from the disk and the recording of data on the disk However, there is a problem that the operation cannot be smoothly shifted to the normal operation such as the above. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to solve the above-mentioned problems, and an object of the present invention is to reduce the time required for the initialization operation after turning on the power of the system or re-attaching the disk, and to shift to the normal operation. An object of the present invention is to provide a data recording and / or reproducing system having a disk drive device which can be performed in a short time. In order to achieve the above object, one or more disk drive units are connected to the disk drive units, and the disk drive units are mounted on the disk drive units. A disk drive comprising a host computer for reproducing and transferring data recorded on the disk and transferring and recording data to be recorded on the disk to and from a disk drive. in or reproducing system, the disc drive device reads the disk address data recorded in the mounted disc is transferred to the host computer, the host computer, the transferred the disk address data, after which the power Turned off or again
When the disc is ejected from the disc drive
Even without being erased, stored in a state capable of reading again, next
When trying to mount the same disk on the
Therefore, the disk address data already stored is used.
When a command to use the disk address is input, the disk address data is transferred to the disk drive, and the corresponding data is transferred.
The disk drive to which the disk address data was transferred.
The drive device stores the corresponding disk address data.
That the initialization operation has been completed
Wait for the disk to be loaded,
Reads disk address data if mounted
Normal operation such as data reproduction operation and recording operation without operation
It is characterized by shifting to . According to this, when a disk that has been mounted once is to be mounted on the disk drive, the disk address data of the disk is stored in a file in the internal memory of the host computer. From the host computer at the time of the initialization operation,
Contrary to the conventional case, the data can be transferred to the disk drive in advance and stored in the disk drive. Therefore, the operation of reading (reproducing) the disk address data from the disk by the time-consuming disk drive device can be omitted, and the time required for the initialization operation can be shortened.
There is an effect that it is possible to shift to the normal operation in a short time. Preferred embodiments of a data recording and / or reproducing system having a disk drive device according to the present invention will be described in detail below with reference to the accompanying drawings. First, the configuration of the system 20, the basic structure is the same as the conventional example, one or more of the disk drive device 12 ₁ to 12 _n as shown in FIG. 1, SCSI
It is connected to a host computer 16 via a transmission line 14 such as an interface. The feature points of the present embodiment, the disk address data of each disk read once in the host computer 16, or then the power is turned OFF, also the disk drive unit 12 ₁
Even when the disc 18 is ejected from the disc _12n , the disc 18 is not erased, but is organized and stored (called a file) in the internal memory in a readable state again, and remains. Therefore, the next time the same disk is to be mounted, the disk address data of the disk stored in the host computer 16 is used to prepare for reproduction / recording of the disk, that is, the initialization operation can be performed. is there. Next, this characteristic operation will be described with reference to FIGS. First, the operator, or perform a normal operation with an operation of storing in the file the disk address data of the disc mounted on the disc drive device 12 ₁ to 12 _n in the host computer 16 as a first treatment or as a second process Whether the normal operation is performed by performing the same initialization operation as in the related art without performing the file processing, or the processing of shifting to the normal operation by performing the initialization operation using the disk address data already filed is performed as the third processing. select. Then, when performing the first processing, the operation mode for performing the processing shown in FIG. 3 is selected. When the second processing or the third processing is performed, the operation mode for performing the processing shown in FIG. 4 is selected. (First Process) First, the operation of the first process in FIG. 3 will be described. First, the power of the system 20 is turned on.
Once, the disc drive apparatus 12 ₁ to 12 _n waits for the disk is mounted (step 200). Then, when a disk is mounted or when a disk is mounted in advance, the disk address data of this disk is read and stored in the internal memory (step 20).
2) Then, the disk address data is transferred to the host computer 16 (step 204). Next, the operator inputs a filing command to the host computer 16 (step 20).
6), the host computer 16 files the disk address data input in step 204 and stored in the internal memory (step 208). Specifically, for example, the disk address data is stored again in a storage medium such as a hard disk so that the disk address data is not erased even when the power is turned off thereafter, and is stored in a state where it can be read again. As described above, steps 202 to 208 correspond to the initialization operation accompanied by the operation of file processing the disk address data for performing the characteristic initialization operation of the present invention. Thereafter, the disk drive devices 12 ₁ to 12 ₁
A state in which the disc address data is stored in the disk 12 _n and the host computer 16, thereby enabling the normal operation. That is, the host computer 16 can freely reproduce data from the disk and record data on the disk (step 21).
0). In the first process, if no filing command is input in step 206 but a command for normal operation (reproduction command or recording command) is input, the filing process is performed in the host computer 16. Without performing, the process directly proceeds to step 210, and the normal operation is performed according to the input command content. Also,
Even when the normal operation is performed, if a filing command is input from the operator to the host computer 16, the process proceeds to step 208 to perform filing processing of the disk address data. Although not shown in FIG. 3, during the processing of Steps 206 to 210, the power-off and the ejection of the disk are always detected. The normal operation ends as shown in FIG. However, unlike the flow of FIG. 2, the data filed in the host computer 16 remains without being erased (cleared). (Second Process and Third Process) Next, the operations of the second process and the third process in FIG. 4 will be described. First, in a state where the system power 20 is turned ON, the respective disk drive unit 12 ₁ to 12 _n detects whether a disk has been mounted (step 300), the second process according to the mounting condition of the disc It is determined whether to perform the third process. Each of the disk drive devices 12 ₁ to 12 ₁
When the system power 20 is turned ON in the state where the disk is attached to the 12 _n, performs the second process. That is, the disk drive devices 12 _{1 to} 12 _n and the host computer 16 perform the same initialization operation as in the conventional example.
The state shifts to a state where normal operation is possible. Specifically, each disk drive unit 12 ₁ to 12 _n reads the disk address data from each of the disk, stored in the internal memory (step 302), followed by transferring the disk address data to the host computer 16 to read. The host computer 16 stores the received disk address data in the internal memory (Step 304). The same initialization operation as in the conventional example is performed. Accordingly, since both of the disk drive device 12 ₁ to 12 _n and the host computer 16 disk address data is stored, a normal operation is possible (step 306). Each of the disk drive devices 12 ₁ to 12 ₁
System 20 with no disk loaded in _2n
When the power supply of is turned on, the third processing is performed. Aspect of the third process, the operator are those disks to be mounted on the disk drive device 12 ₁ to 12 _n have been previously mounted on the disk drive device 12 ₁ to 12 _n, is the disk address data If those that are filed in the host computer 16 transfers the disk address data from the host computer 16 to the disk drive 12 ₁ to 12 _n Conversely, a disk in the disk drive device 12 ₁ to 12 _n Is a point that can select a process that can omit the reproducing operation of the disk address data. More specifically, when a command for using the filed disk address data is input to the host computer 16 in step 308, the host computer 16 attempts to mount the disk drive on the host computer 16 stored in the internal memory. The disk address data of the disk is stored in each disk drive device 1 on which the disk is mounted.
Transfers against 2 ₁ to 12 _n (step 310). Then, the corresponding respective disk drive unit 12 ₁ to 12 to the disk address data is transferred to _n, for storing disk address data corresponding to each of the internal memory. Thus, the initialization operation has been completed. Then, it waits until a disk is actually mounted (step 312). Then, when the disc is loaded, the initialization operation has been completed, so that the state shifts to a state where normal operation can be performed (step 306). When the power of the system 20 is turned on in a state where the disk is not mounted, and the system can be shifted to the third process, the system 20 waits for a command input for using the filed disk address data. (Step 3
00 and step 308), and _if a disk has been mounted in each of the disk drive devices 12 _{1 to} 12 _n , the third process is not performed, and the above-described second process is performed to enable normal operation. Transition to the state. Note that, as in the case of the first processing, once the normal operation is started,
Although the power is turned off and the ejection of the disc is always detected, when the power is turned off and the disc is ejected, the file data in the host computer 16 is not erased (cleared). The normal operation ends. By performing the first processing as described above,
Once the disk address data of the mounted disk is
It is possible to select files sequentially in a reusable state in the host computer 16 by the operator's intention. Further, after performing the first processing, the third processing is selected by the operator's intention. As described above, the time-consuming operation of reproducing the disk address data from the mounted disk in the disk drive device can be omitted, so that the transition to the normal operation such as reproduction and recording for the once-mounted disk is performed as compared with the conventional case. Can be done in a short time. In particular, in a system having a plurality of disk drive devices, the configuration is very effective. Although various preferred embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and many modifications can be made without departing from the spirit of the invention. Of course. According to the data recording and / or reproducing system having the disk drive device according to the present invention, when a disk which has been mounted once is to be mounted on the disk drive device, an operator is required By
Use the disk address data already stored
That the effect of the command is entered, the disk address data of the disk from the host computer in advance and transferred to the disk drive device side contrary to the conventional, corresponding de
Disk drive to which disk address data was transferred.
Store the corresponding disk address data
Completes the initialization operation.
Wait for the disc to be loaded when the disc is
Read operation of the disk address data.
The operation can be skipped and the normal operation such as the data reproducing operation or the recording operation can be performed. Therefore, the operation of reading (reproducing) the disk address data from the disk by the time-consuming disk drive device can be omitted, and the operation can be shortened. There is an effect that it is possible to shift to the normal operation.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a basic configuration of a data recording and / or reproducing system having a disk drive device. FIG. 2 is a flowchart illustrating an operation of a data recording and / or reproducing system having a conventional disk drive device. FIG. 3 is a flowchart for explaining an operation of a first process of a data recording and / or reproducing system having a disk drive device according to the present invention. FIG. 4 is a flowchart for explaining operations of a second process and a third process of the data recording and / or reproducing system having the disk drive device according to the present invention. DESCRIPTION OF SYMBOLS 12 _{1 to} 12 _n disk drive device 16 host computer 20 Data recording and / or reproducing system having disk drive device

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) G06F 3/06-3/08 G06F 13/14 G11B 19/02

Claims (1)

(57) [Claim 1] One or more disk drive devices, and recorded on a disk connected to the disk drive device and mounted on the disk drive device with respect to the disk drive device. A data recording and / or reproducing system having a disk drive device having a host computer for reproducing and transferring data and transferring and recording data to be recorded on the disk to the disk drive device; The disk drive device reads the disk address data recorded on the mounted disk and transfers the read disk address data to the host computer. The host computer then turns off the power of the transferred disk address data or resets the disk address data.
Even if the disc is ejected from the disk drive.
Without leaving, memorize it in a readable state again, and then
When loading the same disc, the operator
Use the disk address data already stored
When the command is transmitted, the disk address data is transferred to the disk drive device, and the disk address data to which the corresponding disk address data is transferred is transferred.
The disk drive stores the corresponding disk address data.
Completes the initialization operation by memorizing the
As a matter of fact, wait until the disk is actually loaded,
Disk address data if a disk is loaded
Data read / write operation, etc. without reading data
A data recording and / or reproducing system having a disk drive device, which shifts to a normal operation .