JP2008217634A - Information processor, information processing method and computer program - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a combination configuration of HDD and another medium, capable of surely preventing head damage of HDD or loss of data by high-level falling detection control. <P>SOLUTION: In the configuration adapted to perform data recording and reproduction selectively to a first medium HDD or a second medium other than HDD, a flag for identifying whether a just-before access destination is HDD or not is recorded, and validation and invalidation of falling detection control is performed according to the flag and the type of a medium to be used. In accessing to the medium other than HDD, the falling detection control is invalidated after retreating the head of HDD, and when preceding processing is recording processing to HDD, the falling detection control is invalidated after completion of sweeping processing of an internal cache in the HDD and head retreating. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an information processing apparatus, an information processing method, and a computer program. More specifically, an information processing apparatus that uses a plurality of different media such as a hard disk and a DVD in a device that performs data recording and reproduction using a medium (information recording medium) such as a camera, a PC, or a video recorder, and The present invention relates to an information processing method and a computer program.

  In recent years, there are devices that can use a plurality of different media such as hard disks and DVDs in devices that perform data recording and reproduction using media (information recording media) such as cameras, PCs, and video recorders. Further, along with the miniaturization of HDDs (hard disk drives), HDDs have been adopted as recording media in imaging devices such as digital cameras and digital video cameras and portable information devices. However, HDDs have a problem that they are vulnerable to mechanical shocks. If data is written or read while the head is on the disk and a large impact is applied by dropping the device, the head will be destroyed. In some cases, the use of the HDD becomes impossible.

  In order to prevent such destruction of the HDD due to the fall, an acceleration sensor is attached to the HDD-equipped device, the fall is detected by the sensor, and immediately after the device starts dropping, before the impact occurs due to a collision with the floor surface, etc. Some measures are taken to prevent the destruction by forcibly shutting off the power of the HDD and retracting the HDD head from the disk.

  By performing such a head retracting process, destruction of the head is prevented, and it is possible to prevent the HDD from becoming unusable. If the head is retracted during data reading, the information recorded in the HDD can be read again after the device returns to a stable state, and there is no problem such as missing information. A retracting configuration to which such an acceleration sensor is applied is described in, for example, Patent Document 1 (Japanese Patent Laid-Open No. 2005-182773).

  However, such a head retracting process by turning off the HDD power is effective for a device in which only a hard disk is mounted as a medium, but there is a problem in a device that can selectively use a plurality of recording media such as a hard disk and a DVD. is there. Devices that can use a plurality of different media, such as a hard disk and a DVD, often employ the ATA / ATAPI standard, which is an IDE standard defined as a connection method between information devices and a medium such as a hard disk. . By using this standard, it is possible to connect two devices on the same bus. For example, the setting is device 0 = HDD and device 1 = DVD.

  However, in the ATA / ATAPI standard, there is a restriction on the connection timing between a host and a host connection device (for example, a recording medium such as an HDD). For example, processing that causes a change in the number of connected devices after the power is turned on is prohibited. Specifically, in a configuration in which a plurality of devices are connected to one bus, the power of some of the connected devices is turned on at the timing when the bus connection is validated, and then the devices that are turned off are connected to the bus. , Processing such as switching to power ON is not allowed.

Therefore, according to the ATA / ATAPI standard, there is a problem that the process of forcibly shutting down the power supply of the HDD by the drop detection described above cannot be performed in a configuration in which the DVD and the HDD are connected to one bus. That is, the DVD power supply is in an ON state regardless of whether or not a drop is detected, but the HDD power supply is turned OFF by the drop detection, and a process of turning ON at the time of return is performed, which is prohibited by the ATA / ATAPI standard. There is a problem in that the number of connected devices changes after the power is turned on, and the above-mentioned HDD safety measures cannot be used because the standard is touched.
JP 2005-182773 A

  The present invention has been made in view of the above-described situation, and an apparatus in which only an HDD is connected even in an information processing apparatus that provides different recording media such as an HDD and a DVD and selectively uses these media. It is an object of the present invention to provide an information processing apparatus, an information processing method, and a computer program that can effectively use a protection mechanism by shutting down the power supply of the HDD based on the fall detection similar to the above.

The first aspect of the present invention is:
A first medium constituted by an HDD (Hard Disk Drive);
A second medium other than the HDD;
Control means for executing data recording or reproduction processing using the first medium or the second medium;
The control means includes
When recording or playback processing using the first media or the second media is executed, a processing is performed for recording a used media identification flag indicating which media is used in a memory;
When newly executing the recording or reproduction process using the first medium or the second medium, the used medium identification flag is read, and information is read according to the read used medium identification flag and the type of medium scheduled to be used. An information processing apparatus is configured to perform control for switching whether or not to perform drop detection control for performing a head retracting process of a hard disk based on a drop detection of the processing apparatus.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the control means is configured to perform control for setting to perform drop detection control when the medium to be used is the first medium (HDD). It is characterized by being.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the control means performs control to set the drop detection control not to be performed when the medium to be used is the second medium (other than the HDD). It is the structure.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the control means uses the first medium (HDD) as the medium scheduled to be used, and uses the second medium (other than the HDD) as the use medium identification flag. In the case where it has been shown, the configuration is such that the process of changing to the setting for performing drop detection control is executed.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the control means uses the second medium (other than the HDD) as the medium scheduled to be used, and uses the first medium (HDD) as the used medium identification flag. In the case where this is shown, the configuration is such that the head retracting process of the first medium (HDD) is executed, and the process of changing the setting to not performing the drop detection control is executed.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, the control means uses the second medium (other than the HDD) as the medium scheduled to be used, and uses the first medium (HDD) as the used medium identification flag. Indicates that the recording process has been executed, the internal cache in the first medium (HDD) is swept out, the head retracting process is executed, and the process for changing to the setting for not performing the drop detection control is executed. It is the structure which carries out.

  Furthermore, in an embodiment of the information processing apparatus of the present invention, when the control means executes a recording process using the first medium or the second medium, which medium is used for the recording process? Is recorded in the memory, and when a reproduction process using the first medium or the second medium is executed, a reproduction source flag indicating which medium is used for the reproduction process is stored in the memory. When the recording process using the first medium or the second medium is newly executed, the recording destination flag is read, and the read recording destination flag and the medium to be used are recorded. Control to switch whether or not to perform drop detection control that performs hard disk head retraction processing based on the fall detection of the information processing device, depending on the type of When a playback process using the first medium or the second medium is newly performed, the playback source flag is read, and information processing is performed according to the read source flag and the type of the medium scheduled to be used. The present invention is characterized in that it is configured to perform control for switching whether or not to perform fall detection control for performing head retracting processing of a hard disk based on device fall detection.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, when the drop detection information is input during execution of the drop detection control, the control means is configured to input the first medium (HDD) and the second medium (other than the HDD). ) Is disconnected, and processing for turning off the power of the first medium (HDD) and the second medium (other than the HDD) is performed.

  Furthermore, in one embodiment of the information processing apparatus of the present invention, the control means inputs fall detection information during the execution of the fall detection control, and the first medium (HDD) and the second medium (other than the HDD). In the restoration process after the process of turning off the power of the first medium (HDD), after the process of turning on the power of the first medium (HDD) and the second medium (other than the HDD) is executed, the first medium (HDD) And a configuration for executing a process of connecting a bus for connecting a second medium (other than the HDD).

Furthermore, the second aspect of the present invention provides
An information processing method executed in an information processing apparatus that performs data recording or reproduction processing by selectively using a first medium constituted by an HDD (hard disk drive) and a second medium other than the HDD,
A flag recording step of recording, in a memory, a used media identification flag indicating which media is used when the control means executes a recording or playback process using the first media or the second media;
When the previous period control means newly executes recording or playback processing using the first medium or the second medium, the used medium identification flag is read, and the read used medium identification flag and the type of medium to be used are read. A drop detection control setting step for performing control to switch whether or not to perform drop detection control for performing head retraction processing of the hard disk based on the drop detection of the information processing device,
There is an information processing method characterized by executing.

  Furthermore, in an embodiment of the information processing method of the present invention, the drop detection control setting step includes a control for setting the drop detection control when the medium to be used is a first medium (HDD). It is a step to perform.

  Furthermore, in one embodiment of the information processing method of the present invention, the drop detection control setting step is set so that the drop detection control is not performed when the medium to be used is the second medium (other than the HDD). It is a step for performing control.

  Furthermore, in one embodiment of the information processing method of the present invention, in the drop detection control setting step, the medium to be used is a first medium (HDD), and the use medium identification flag is a second medium (other than HDD). ) Is used, it is a step of executing a process of changing to a setting for performing drop detection control.

  Furthermore, in one embodiment of the information processing method of the present invention, in the information processing method, the control unit further includes a medium to be used as a second medium (other than the HDD), and the use medium identification flag is In the case where it is indicated that the first medium (HDD) is used, the head retracting process of the first medium (HDD) is executed, and the process of changing the setting to not perform the drop detection control is executed. .

  Furthermore, in one embodiment of the information processing method of the present invention, in the information processing method, the control unit further includes a medium to be used as a second medium (other than the HDD), and the use medium identification flag is When it indicates that the recording process using the first medium (HDD) is executed, the internal cache in the first medium (HDD) is swept out, the head retracting process is executed, and the drop detection control is performed. It is characterized by executing a process of changing to a non-setting.

  Furthermore, in one embodiment of the information processing method of the present invention, the flag recording step executes a recording process using any medium when the recording process using the first medium or the second medium is performed. Is recorded in the memory, and when the reproduction process using the first medium or the second medium is executed, the reproduction source flag indicating which medium is used for the reproduction process is stored in the memory. The fall detection control setting step reads and reads the recording destination flag when newly executing the recording process using the first medium or the second medium. Depending on the recording destination flag and the type of media to be used, hard disk head evacuation processing based on the fall detection of the information processing device is performed. When performing a control to switch whether or not to perform fall detection control and newly executing a playback process using the first medium or the second medium, the playback source flag is read, and the read source flag and The step of performing control for switching whether or not to perform drop detection control for performing head retraction processing of the hard disk based on the drop detection of the information processing device according to the type of media scheduled to be used.

  Furthermore, in an embodiment of the information processing method of the present invention, in the information processing method, when the control means inputs fall detection information during execution of the fall detection control, the first medium (HDD) ) And the second medium (other than the HDD) are disconnected, and the first medium (HDD) and the second medium (other than the HDD) are turned off.

  Furthermore, in one embodiment of the information processing method of the present invention, in the information processing method, the control means further inputs fall detection information during execution of the fall detection control, and the first medium (HDD). In the return process after the process of turning off the power of the second medium (other than the HDD), the process of turning on the power of the first medium (HDD) and the second medium (other than the HDD) is executed. A process of connecting a bus for connecting the first medium (HDD) and the second medium (other than the HDD) is executed.

Furthermore, the third aspect of the present invention provides
A computer program that executes information processing in an information processing apparatus that performs data recording or reproduction processing by selectively using a first medium constituted by an HDD (hard disk drive) and a second medium other than the HDD. ,
A flag recording step for causing the control means to record a used medium identification flag indicating which medium is used in a memory when the recording or reproducing process using the first medium or the second medium is executed;
When the first-time control means newly performs recording or playback processing using the first medium or the second medium, the used medium identification flag is read, and the read used medium identification flag and the type of medium to be used are read. A drop detection control setting step for performing a control to switch whether or not to perform a drop detection control for performing a head retraction process of the hard disk based on a drop detection of the information processing device,
In a computer program characterized by causing

  The computer program of the present invention is, for example, a computer program that can be provided by a storage medium or a communication medium provided in a computer-readable format to a general-purpose computer system that can execute various program codes. . By providing such a program in a computer-readable format, processing corresponding to the program is realized on the computer system.

  Other objects, features, and advantages of the present invention will become apparent from a more detailed description based on embodiments of the present invention described later and the accompanying drawings. In this specification, the system is a logical set configuration of a plurality of devices, and is not limited to one in which the devices of each configuration are in the same casing.

  According to the configuration of one embodiment of the present invention, in a configuration in which data recording / reproduction is performed selectively using a first medium constituted by an HDD (hard disk drive) and a second medium other than the HDD, Is used to identify whether the access destination is the first medium (HDD) or the second medium (other than the HDD), and the head of the HDD is retracted according to the flag and the type of the medium to be used. Enable or disable fall detection control. For example, when accessing a medium (such as a DVD) other than the HDD, the drop detection control is invalidated after the HDD head is retracted. If the previous process is a data recording process for the HDD, the HDD internal cache sweep process is executed to execute head retraction and invalidate the drop detection control. Further, when the fall detection control is executed, processing for turning off both the HDD and the medium other than the HDD is executed, and when returning, both are turned on and then the bus connection is made. By performing these processes, the HDD can be prevented from being damaged or lost in any process.

  Details of the information processing apparatus, the information processing method, and the computer program of the present invention will be described below with reference to the drawings.

  As described above, in the ATA / ATAPI standard, the change in the number of connected devices after the power is turned on is prohibited, and therefore, based on the fall detection effective as a head or hard disk protection mechanism in a device in which only the HDD is mounted as a recording medium. There is a problem that the head withdrawal process becomes difficult to use in a device that uses recording media other than HDD and HDD, such as DVD and HDD. First, this problem will be described with reference to FIG.

  FIG. 1A shows an information processing apparatus equipped with a first medium 103 made of a hard disk as a recording medium. In such an HDD-only mounting apparatus, HDD protection is possible by executing a head withdrawal process based on drop detection. A specific processing sequence will be described.

Processing at the time of drop detection is executed by the following sequence.
(Step 1)
First, the fall of the apparatus is detected by the acceleration sensor 102, and the fall detection information is input to the host 101.
(Step 2)
The host 101 controls the bus switch 111 of the connection bus 113 of the first medium (HDD) 103 based on the fall detection information from the acceleration sensor 102 to disconnect the connection bus 113.
(Step 3)
The host 101 controls the power switch 112 to turn off the power source a 104 of the first medium (HDD) 103.

  By controlling the power switch 112 to turn off the power of the first medium (HDD) 103, the head of the hard disk is moved to the retracted position, and contact between the head and the disk is prevented.

Furthermore, the process at the time of return after the apparatus is stabilized is executed by the following sequence.
(Step 1)
First, the host 101 detects the stop of dropping based on the output of the acceleration sensor 102.
(Step 2)
The host 101 controls the power switch 112 to turn on the power source a 104 of the first medium (HDD) 103.
(Step 3)
The host 101 controls the bus switch 111 of the connection bus 113 of the first medium (HDD) 103 to connect the connection bus 113.

  It should be noted that, by such a forced power-off process for the hard disk when a drop is detected, the head is retracted, the head and data are prevented from being destroyed, and it is possible to prevent the HDD from becoming unusable.

  However, as described above, the ATA / ATAPI standard places restrictions on the connection timing between a host and a host connection device (for example, a recording medium such as an HDD). For example, processing that causes a change in the number of connected devices after the power is turned on is prohibited. Specifically, in a configuration in which a plurality of devices are connected to a single bus, the power of some of the connected devices is turned on at the timing when the bus connection is validated, and then the devices that are turned off are connected to the power by the bus. Processing such as shifting to ON is not permitted.

  According to this standard, the first medium (HDD) 153 and the second medium (DVD) 155 are connected to one bus 113 as shown in FIG. There is a problem that it is impossible to forcibly shut off the power source a154 of the (HDD) 153. FIG. 1B shows a DVD as the second medium, but the same applies to media other than the DVD as long as the media is other than the HDD.

  In such a configuration in which the HDD and the medium other than the HDD are connected, the power supply b156 of the second medium (DVD) 155 is in the ON state regardless of whether or not the drop is detected, but the power supply a154 of the first medium (HDD) 153. Is turned off when a drop is detected, and is turned on at the time of recovery. The number of connected devices after power-on, which is prohibited by the ATA / ATAPI standard, changes, and touches the standard. There is a problem that the safety measures of can not be used.

  The information processing apparatus of the present invention solves such a problem, and provides a recording mechanism that provides different recording media such as an HDD and a DVD and selectively uses these media. Can be used effectively.

  Specifically, in the information processing apparatus of the present invention, a flag for identifying “whether the previous access destination was an HDD or a DVD” is held, and the information is dropped only during the period of accessing the HDD while using the flag. When detecting control is enabled and accessing media other than the HDD, for example, DVD, if there is unwritten data to the HDD first, it will be ejected and then the head of the HDD is withdrawn to disable the drop detection control To do. When accessing the HDD again, if the previous access destination is a medium other than the HDD, for example, a DVD, the HDD is accessed after the fall detection control is turned on again.

  If a fall is detected during HDD access, the power to both the HDD and the medium other than the HDD, such as a DVD, is shut off. When returning from the fall, both the HDD and media other than the HDD, such as a DVD, are turned on.

  In the following embodiment, an example of processing when an HDD is used as the first medium and a DVD is used as the second medium different from the HDD will be described. Note that the present invention can be applied to a combination of various media other than the HDD and the HDD.

  FIG. 2 shows a configuration example of the information processing apparatus of the present invention. The information processing apparatus 200 of the present invention is equipped with a first medium (HDD) 203 composed of a hard disk as a recording medium and a second medium (DVD) 213 other than the hard disk. The first medium (HDD) 203 is supplied with power from the power source a 204, and the second medium (DVD) 205 is supplied with power from the power source b 206. The plurality of media are connected in parallel to one bus 213 and are connected to the host 201 by the bus 213.

  The acceleration sensor 202 detects whether the information processing apparatus 200 is in a falling state and outputs detection information to the host 201. The host 201 controls connection of the bus 213 by opening and closing the bus switch 211 in accordance with input information from the acceleration sensor 202, and executes on / off of power supply from the power sources 204 and 206 connected to the respective media. The power on / off control corresponding to each medium is executed by opening and closing the power switches 212 and 213.

  As described above, the information processing apparatus of the present invention holds a flag for identifying “whether the previous access destination was an HDD or a DVD”, and dropped only during the period of accessing the HDD while using the flag. When detecting control is enabled and accessing media other than the HDD, for example, DVD, if there is unwritten data to the HDD first, it will be ejected and then the head of the HDD is withdrawn to disable the drop detection control To do. When accessing the HDD again, if the previous access destination is a medium other than the HDD, for example, a DVD, the HDD is accessed after the fall detection control is turned on again.

If drop detection control is enabled,
(A) Processing at the time of drop detection (b) Return processing These processing is executed under the control of the host 201.
Hereinafter, the sequence of (a) processing at the time of drop detection and (b) return processing will be described.

(A) Processing at the time of drop detection The processing at the time of drop detection is executed by the following sequence.
(Step 1)
First, the fall of the apparatus is detected by the acceleration sensor 202, and the fall detection information is input to the host 201.
(Step 2)
The host 201 controls the bus switch 211 of the bus 214 based on the fall detection information from the acceleration sensor 202 to disconnect the connection bus 214.
(Step 3)
The host 201 controls the power switches 212 and 213 to turn off the power supply a204 of the first medium (HDD) 203 and the power supply b206 of the second medium (DVD) 205.

  Note that by controlling the power switch 212 to turn off the power supply a204 of the first medium (HDD) 203, the head of the hard disk is moved to the retracted position and contact between the head and the disk is prevented.

(B) Return process Furthermore, the process at the time of return after the apparatus is stabilized is executed by the following sequence.
(Step 1)
First, the host 201 detects the stop of dropping based on the output of the acceleration sensor 202.
(Step 2)
The host 201 controls the power switches 212 and 213 to turn on the power source a 204 of the first medium (HDD) 203 and the power source b 206 of the second medium (DVD) 205.
(Step 3)
The host 201 controls the bus switch 211 of the bus 214 to connect the connection bus 214.

  Next, with reference to the flowchart shown in FIG. 3, the sequence of information recording processing for media in the information processing apparatus of the present invention will be described. Control of the processing shown in the flowchart of FIG. 3 is executed by a control unit in the host 201 in the information processing apparatus 200 of FIG.

  First, in step 101, confirmation of a medium on which data is recorded is executed. The data recording medium is determined by information specified by the user. If there is no user designation, the media set by default is selected as the recording destination.

In step S102, it is determined whether the selected recording medium is an HDD. If the recording medium is an HDD, the process advances to step S103 to check the recording destination flag. The information processing apparatus of the present invention has a configuration in which a recording destination flag for identifying a recording destination of data executed in the past is stored in a memory accessible by the control unit. For example, as shown in FIG. 4, the recording destination flag and the reproduction source flag are recorded in the memory, and the identification information of the medium that has been performing the recording process in the latest process and the reproduction process in the latest process are executed. The recorded media identification information is recorded. In the example shown in FIG.
Flag value [0] = HDD
Flag value [1] = DVD
Is shown.

  In step S103, referring to, for example, the memory storage information shown in FIG. 4, the recording destination flag is confirmed, that is, the access media information at the time of the latest recording process is acquired. If it is determined in step S104 that the recording destination flag is not DVD, that is, if it is determined that the access medium at the time of the latest recording process is HDD, the process proceeds to step S105.

When the process proceeds to step S105, it means that the immediately preceding data recording medium is also an HDD, and the medium to be used as a recording destination from now on is also an HDD. When the immediately preceding data recording destination is an HDD, the drop detection control is set to the ON state. That is, the drop detection information from the acceleration sensor 202 shown in FIG. 2 is input to the host 201, and the host 201 executes control according to the drop detection information. That is, (a) processing at the time of drop detection described with reference to FIG. 2 (b) return processing These processing is executed based on input information from the acceleration sensor 202.

  In step S105, the accumulated data is acquired from the buffer memory temporarily storing the recording schedule data and output to the HDD. The output unit is a preset unit (sector unit).

  A specific sequence of the data recording process in units of sectors in step S105, that is, the process of writing from sector X to N sectors will be described with reference to FIG. FIG. 5 shows three types of sequences as control modes on the host side of processing for reading data stored in the buffer memory and recording it in the HDD. Data writing can be obtained by any one of these three types of processing.

[Control A]
In step S151, one processing step of writing data accumulated in the buffer memory from sector X to N sector is executed. This process is only a process of outputting data of a predetermined data recording unit (N sector) to the HDD, and assumes a process that does not use the HDD internal cache.

[Control B]
In step S161, after the processing step of writing data stored in the buffer memory into sectors X to N in the cache inside the medium, in step S162, the stored data in the cache inside the medium is recorded on the medium. This process assumes a process using the HDD internal cache, and is a process of writing data from the HDD internal cache to the disk after outputting data from the buffer to the HDD internal cache.

[Control C]
In step S171, the use of the internal cache of the medium is set to OFF. In step S172, after the processing step of writing data stored in the buffer memory from sector X to N sectors, the use of the internal cache of the medium is determined in step S183. Set to on. This process realizes the data recording process as a setting not to temporarily use the HDD internal cache.

  The sector unit data recording process in step S105 of FIG. 3 can be executed by any one of these sequences. In step S106, it is determined whether an error has occurred during the data recording process. If no error has occurred, the process advances to step S107 to set a recording destination flag (see FIG. 4) in the HDD. That is, a flag indicating that the last write process has been executed for the HDD is set. Thereafter, in step S108, the data writing success is notified and the process is terminated.

  On the other hand, if it is determined in step S106 that an error has occurred during the data recording process, the process proceeds to step S122, in which it is determined whether or not the number of write executions is less than a preset limit number. Returns to step S105 and executes retry (reprocessing) of the writing process. If it is determined in step S122 that the number of write executions has reached a preset limit, the process proceeds to step S123, a write error is notified, and the process is terminated.

  If it is determined in step S102 that the selected recording medium is not an HDD, for example, if it is determined that it is a DVD, the process proceeds to step S111 and the recording destination flag (see FIG. 4) is confirmed. In step S111, for example, referring to the memory storage information shown in FIG. 4, confirmation of the recording destination flag, that is, access media information at the time of the latest recording processing is acquired. If it is determined in step S112 that the recording destination flag is HDD, that is, if it is determined that the access medium at the time of the latest recording process is HDD, the process proceeds to step S113.

When the process proceeds to step S113, it means that the immediately preceding data recording medium is an HDD, and the medium to be used as a recording destination from now on is a DVD.
That is, the recording destination is
HDD → DVD
Means that it has been changed. As described above, when the immediately preceding data recording destination is the HDD, the drop detection control is set to the ON state.

  In step S113, the HDD internal cache data is swept out and the head evacuation process is executed. The HDD internal cache data sweep-out process is a process of reading from the HDD internal cache data that has been output to the HDD as recording data for the HDD from the apparatus buffer, but has not yet been written to the disk, and recording it on the hard disk. This data sweep-out process is realized, for example, by executing a “FLUSH CACHE command” or “FLUSH CACHE EXT” defined in ATA / ATAPI-6. After this sweeping process, the HDD header is saved. Similarly, the head withdrawal process can be realized by executing a “STANDBY IMMEDIATE command” defined in ATA / ATAPI-6. Details of the command are described in “Information Technology-AT Attachment with Packet Interface-6 (ATA / ATAPI-6)”. By setting the head to the retracted state, the header and the hard disk are not damaged even if the head is dropped.

After this processing, the process proceeds to step S114, and the fall detection control is turned off. By setting the fall detection control to OFF, even if the host 201 shown in FIG. 2 inputs the fall detection information from the acceleration sensor 202, the host 201 shown in FIG. b) Return process These processes are not executed. The case where the drop detection control is turned off is a case where data recording is performed on the DVD. Since the HDD internal cache flushing process and the HDD header saving process are executed in step S113, the fall detection control should be performed. Even if it occurs, the header and the hard disk are not damaged, and there is no risk of data loss.

  In step S115, the recording destination flag (see FIG. 4) is set on the DVD. In step S116, a data recording process for the DVD is executed. In step S117, it is determined whether or not an error has occurred in the data recording process. If there is no error, the process proceeds to step S118, the writing success is notified, and the process ends. If an error has occurred, the process proceeds to step S123, a write error is notified, and the process ends.

  As described above, in the information processing apparatus of the present invention, a flag for identifying “whether the previous access destination is an HDD or a DVD” is held, and the flag is used only during the period when the HDD is accessed. When detecting control is enabled and accessing media other than the HDD, for example, DVD, if there is unwritten data to the HDD first, it will be ejected and then the head of the HDD is withdrawn to disable the drop detection control It is configured to do. Therefore, when the data recording process for the HDD is performed, the drop detection process and the return process described with reference to FIG. 2 are executed, so that the header and the hard disk are not damaged, and data loss is not caused. There is no fear.

  In addition, when the recording process is performed on the DVD, the drop detection control is invalidated. However, as preprocessing, if there is unwritten data in the HDD, the process of sweeping out the HDD head and then retracting the HDD head is performed. Since it is executed, even if a fall occurs, the header and the hard disk are not damaged, and there is no risk of data loss. When accessing the HDD again, if the previous access destination is a medium other than the HDD, such as a DVD, the HDD is accessed after the fall detection control is turned ON again. Damage and data loss can be prevented.

  Next, the sequence of information reproduction processing from media in the information processing apparatus of the present invention will be described with reference to the flowchart shown in FIG. Control of the processing shown in the flowchart of FIG. 6 is executed by a control unit in the host 201 in the information processing apparatus 200 of FIG.

  First, in step 201, confirmation of the media to be reproduced is executed. The playback medium is determined by information specified by the user. If there is no user designation, the media set by default is selected as the playback source.

In step S202, it is determined whether the selected recording medium is an HDD. If the playback medium is an HDD, the process proceeds to step S203 to check the playback source flag. The information processing apparatus of the present invention has a configuration in which a reproduction source flag for identifying a reproduction processing medium executed in the past is stored in a memory accessible by the control unit. For example, as shown in FIG. 4, the recording destination flag and the reproduction source flag are recorded in the memory, and the identification information of the medium that has been performing the recording process in the latest process and the reproduction process in the latest process are executed. The recorded media identification information is recorded. In the example shown in FIG.
Flag value [0] = HDD
Flag value [1] = DVD
Is shown.

  In step S203, for example, referring to the memory storage information shown in FIG. 4, the reproduction source flag is confirmed, that is, the access media information at the time of the latest reproduction processing is acquired. If it is determined in step S204 that the playback source flag is not DVD, that is, if it is determined that the access medium at the time of the latest playback processing is HDD, the process proceeds to step S205.

When the process proceeds to step S205, it means that the immediately preceding data reproduction medium is also an HDD, and the reproduction medium to be used in the future is also an HDD. If the immediately preceding playback medium is an HDD, the drop detection control is set to ON. That is, the drop detection information from the acceleration sensor 202 shown in FIG. 2 is input to the host 201, and the host 201 executes control according to the drop detection information. That is, (a) processing at the time of drop detection described with reference to FIG. 2 (b) return processing These processing is executed based on input information from the acceleration sensor 202.

  In step S205, data is read from the HDD in a predetermined data read unit (sector unit) and stored in the buffer memory. In step S206, it is determined whether an error has occurred during the data reproduction process. If no error has occurred, the process advances to step S207 to set the playback source flag (see FIG. 4) in the HDD. That is, a flag indicating that the immediately preceding reproduction process has been executed using the HDD is set. Thereafter, in step S208, the data read success is notified and the process is terminated.

  On the other hand, if it is determined in step S206 that an error has occurred during the data reproduction process, the process proceeds to step S222, where it is determined whether or not the read execution count is less than a preset limit count. Returns to step S205 and executes a retry (reprocessing) of the reading process. If it is determined in step S222 that the read execution count has reached the preset limit count, the process proceeds to step S223, a read error is notified, and the process ends.

  If it is determined in step S202 that the selected reproduction medium is not an HDD, for example, if it is determined to be a DVD, the process proceeds to step S211 and the reproduction source flag (see FIG. 4) is confirmed. In step S211, for example, referring to the memory storage information shown in FIG. 4, the reproduction source flag is confirmed, that is, the access media information at the time of the latest reproduction processing is acquired. If it is determined in step S212 that the playback source flag is HDD, that is, if it is determined that the access medium at the time of the latest playback processing is HDD, the process proceeds to step S213.

When the process proceeds to step S213, it means that the immediately preceding data reproduction medium is an HDD, and the reproduction medium to be used from now on is a DVD.
That is, the playback media is
HDD → DVD
Means that it has been changed. As described above, when the immediately preceding data reproduction medium is an HDD, the drop detection control is set to the ON state.

  In step S213, HDD head withdrawal processing is executed. By setting the retracted state, the header and the hard disk will not be damaged even if a drop occurs.

After this processing, the process proceeds to step S214, and the fall detection control is turned off. By setting the fall detection control to OFF, even if the host 201 shown in FIG. 2 inputs the fall detection information from the acceleration sensor 202, the host 201 shown in FIG. b) Return process These processes are not executed. Note that the case where the drop detection control is turned off is a case where data reproduction using a DVD is performed, and since the HDD header saving process is executed in step S213, even if a drop occurs, No damage to the header or hard disk.

  In step S215, the playback source flag (see FIG. 4) is set to DVD. In step S216, data reproduction processing using a DVD is executed. In step S217, it is determined whether or not an error has occurred in the data reproduction process. If there is no error, the process proceeds to step S218 to notify the success of reading and the process ends. If an error has occurred, the process proceeds to step S223, a read error is notified, and the process ends.

  As described above, in the information processing apparatus of the present invention, also in the data reproduction process, the reproduction source flag for identifying “whether the previous access destination is an HDD or a DVD” is held and the reproduction source flag is used. Only when the HDD is accessed, drop detection control is enabled. When accessing a medium other than the HDD, for example, a DVD, the HDD head is retracted to disable the drop detection control.

  When the data reproduction process using the HDD is performed in this way, the drop detection process and the return process described with reference to FIG. 2 are executed, so that the header and the hard disk are not damaged. In addition, when data reproduction processing using a DVD is performed, drop detection control is invalidated, but processing for evacuating the HDD head is executed as its preprocessing, so even if a drop occurs, a header or hard disk Will not cause any damage. When accessing the HDD again, if the previous access destination is a medium other than the HDD, such as a DVD, the HDD is accessed after the fall detection control is turned ON again. Damage can be prevented.

[Configuration example of information processing device]
Next, a configuration example of an information processing apparatus according to an embodiment of the present invention will be described. The information processing apparatus of the present invention is an apparatus that performs data recording on a medium (information recording medium) or data reproduction processing from the information recording medium. The information processing apparatus is an apparatus such as a digital video camera or a PC.

  The configuration of the information processing apparatus will be described with reference to FIGS. FIG. 7 shows the configuration of an information processing apparatus that accesses a medium (information recording medium) 284 such as a hard disk to execute data recording or data reading for each processing hierarchy. As shown in FIG. 7, when data is recorded on a medium (information recording medium) 284 such as a hard disk or when data recorded on the recording medium is read and used, a processing request from the user is used. The application program 281 exists in the uppermost layer as a contact point with the user, such as receiving a user interface and providing a user interface. Below that, a file system (file management program) 282 for managing files on the medium (information recording medium) 284 and a device driver 283 for controlling the medium (information recording medium) 284 based on information from the file system. Exists.

  When recording data on the medium (information recording medium) 284 or reproducing data from the medium (information recording medium) 284, for example, a request via the application program 281 is transmitted to the file system 282 and the device driver 283, Data writing and reproduction are executed by the functions of the file system 282 and the device driver 283. By the same processing as before, processing is performed with a configuration of file system⇔device driver⇔recording medium (hard disk).

  When a plurality of different files are applied as continuous recording files when data recording is performed, special codes are recorded in a file allocation table (FAT) applied by the file system. When a plurality of different files are applied as continuous recording files when data reproduction is executed, file switching is executed on condition that a special code is detected from the FAT.

  FIG. 8 is a block diagram showing the system configuration shown in FIG. 7 in more detail. The configuration shown in FIG. 8 is a diagram showing the system configuration of an information processing apparatus that executes data recording on an information recording medium, data acquisition from the information recording medium, and reproduction processing, as in FIG. 7, and includes a hard disk, a DVD, and a flash memory. 2 shows a system configuration of an information processing apparatus that records data on media 361 and 362 such as the above and executes processing for reading and using data recorded on a recording medium.

  In FIG. 8, similarly to FIG. 7, a file system (file management program) 310 for managing files on the media 361 and 362 below the application 300 and media 361 and 362 based on information from the file system 310 are provided. A device driver 350 to be controlled is shown. In the example shown in FIG. 8, two media 361 and 362 are shown. For example, a hard disk and other recording media such as a DVD. The device driver 350 includes device drivers 351 and 352 corresponding to the media 361 and 362 that are recording devices.

  The application 300, the file system 310, and the device driver 350 access and use the memory 370 as a work area for storing programs and parameters necessary for processing of each component and data processing.

  The application 300 includes applications according to processing, such as a recording application 301 that executes data recording processing on the media 361 and 362, and a playback application 302 that executes playback processing of data recorded on the media 361 and 362.

  The user selects these applications and executes various processes. The process described above with reference to FIG. 3 is executed by the execution of the recording application 301, and the process described above with reference to FIG. 6 is executed by the execution of the playback application 302.

  The file system 310 includes mount drive information 311 and 312 corresponding to each medium including the type and format information of each medium 361 and 362, and file systems 320 and 330 corresponding to the respective media 361 and 362, and mount drive information 311. 312 and file systems 320 and 330, data recording and reproduction control to which the media 361 and 362 are applied is executed.

  Next, as a configuration example of an information processing apparatus that executes the above-described processing, a configuration example of a digital video camera and a PC will be described with reference to FIGS.

  First, a configuration example of a digital video camera will be described with reference to FIG. The digital video camera captures an image and records the image data obtained by the imaging on various information recording media such as a magnetic disk such as a hard disk, an optical disk such as a DVD, a magneto-optical disk, and a semiconductor memory via a drive 432. An imaging mode for recording, and a VTR mode for recording data supplied through the image input / output unit 414, the audio input / output unit 416, or the communication unit 431 on a recording medium, and reproducing data recorded on the recording medium It is equipped with.

  The imaging mode includes a moving image imaging mode in which a moving image is captured and simultaneously recorded sound is recorded on a recording medium, and a still image imaging mode in which a still image is captured. In the VTR mode, the supplied data is recorded by operating the operation input unit 420 including a recording button switch, and the recording is performed on the recording medium by operating the playback button switch. The target data can be reproduced.

  As shown in FIG. 9, the digital video camera includes an optical lens unit 411, a photoelectric conversion unit 412, a camera function control unit 402, an image signal processing unit 413, an image input / output unit 414, a liquid crystal display 415, an audio input / output unit 416, An audio signal processing unit 417, a communication unit 431, a control unit (CPU) 401, a built-in memory (RAM) 418, a built-in memory (ROM) 419, an operation input unit 420, a drive 432 for an information recording medium, an acceleration sensor 451, and each A power supply 441 for supplying power to the components is provided.

  A control unit (CPU) 401 executes processing according to various processing programs stored in the ROM 419. The RAM 418 is mainly used as a work area such as temporarily storing intermediate results in each process. In the RAM 418, the recording destination flag and the reproduction source flag described above with reference to FIG. 4 are recorded. For example, the control unit (CPU) 401 executes process control according to the sequence described with reference to the flowcharts of FIGS. 3, 5, and 6.

  The operation input unit 401 includes a mode switching key for switching operation modes such as a moving image shooting mode, a still image shooting mode, a VTR mode, a shutter key for shooting a still image, a shooting start key for shooting a movie, a recording key, Various operation keys and function keys such as a reproduction key, a stop key, a fast-forward key, and a fast-rewind key are provided, and an operation input from the user is received and an electric signal corresponding to the received operation input is transmitted to the control unit (CPU) 401. To supply.

  The control unit (CPU) 401 reads out and executes a program for performing a target process from the ROM 419 in accordance with an operation input from the user, and controls each unit to perform a process according to an instruction from the user. Take control. Further, as described above, processing control for protecting the HDD according to the input from the acceleration sensor 451 is also executed. The digital video camera can mount various information recording media such as a magnetic disk, an optical disk, a magneto-optical disk, and a semiconductor memory as an information recording medium, and record various kinds of information on these information recording media via a drive 432. Also, the information recorded on these information recording media is reproduced.

  Next, a hardware configuration example of a PC as an example of an information processing apparatus that performs the above-described processing will be described with reference to FIG. A CPU (Central Processing Unit) 501 executes processing corresponding to an OS (Operating System), data recording or data reproduction processing described in the above-described embodiments, control processing based on input information from the acceleration sensor 516, and the like. Functions as a data processing unit. These processes are executed according to a computer program stored in a data storage unit such as a ROM or a hard disk of the information processing apparatus.

  A ROM (Read Only Memory) 502 stores programs used by the CPU 501, calculation parameters, and the like. A RAM (Random Access Memory) 503 stores programs used in the execution of the CPU 501, parameters that change as appropriate during the execution, and the like. In the RAM 503, the recording destination flag and the reproduction source flag described above with reference to FIG. 4 are recorded. These are connected to each other by a host bus 504 including a CPU bus.

  The host bus 504 is connected to an external bus 506 such as a PCI (Peripheral Component Interconnect / Interface) bus via a bridge 505.

  A keyboard 508 and a pointing device 509 are input devices operated by the user. The display 510 includes a liquid crystal display device, a CRT (Cathode Ray Tube), or the like, and displays various types of information as text and images.

  An HDD (Hard Disk Drive) 511 has a built-in hard disk and drives the hard disk. The hard disk has, for example, the layout described above with reference to FIG. The hard disk is used as an image data file storage area and stores various computer programs such as a data processing program.

  The drive 512 reads data or a program recorded on a removable recording medium 521 such as a magnetic disk, an optical disk, a magneto-optical disk, or a semiconductor memory, and the data or program is read out from the interface 507 and the external bus 506. , And supplied to the RAM 503 connected via the bridge 505 and the host bus 504.

  The connection port 514 is a port for connecting the external connection device 522 and has a connection unit such as USB or IEEE1394. The connection port 514 is connected to the CPU 501 and the like via the interface 507, the external bus 506, the bridge 505, the host bus 504, and the like. The communication unit 515 is connected to a network and executes communication with other information processing apparatuses.

  The configuration example of the information processing apparatus illustrated in FIGS. 9 and 10 is an example of the apparatus, and the information processing apparatus is not limited to the configuration illustrated in FIGS. 9 and 10, and executes the processes described in the above-described embodiments. Any configuration is possible.

  The present invention has been described in detail above with reference to specific embodiments. However, it is obvious that those skilled in the art can make modifications and substitutions of the embodiments without departing from the gist of the present invention. In other words, the present invention has been disclosed in the form of exemplification, and should not be interpreted in a limited manner. In order to determine the gist of the present invention, the claims should be taken into consideration.

  The series of processing described in the specification can be executed by hardware, software, or a combined configuration of both. When executing processing by software, the program recording the processing sequence is installed in a memory in a computer incorporated in dedicated hardware and executed, or the program is executed on a general-purpose computer capable of executing various processing. It can be installed and run. For example, the program can be recorded in advance on a recording medium. In addition to being installed on a computer from a recording medium, the program can be received via a network such as a LAN (Local Area Network) or the Internet and installed on a recording medium such as a built-in hard disk.

  Note that the various processes described in the specification are not only executed in time series according to the description, but may be executed in parallel or individually according to the processing capability of the apparatus that executes the processes or as necessary. Further, in this specification, the system is a logical set configuration of a plurality of devices, and the devices of each configuration are not limited to being in the same casing.

  As described above, according to the configuration of the embodiment of the present invention, data recording / playback is performed selectively using the first medium constituted by the HDD (hard disk drive) and the second medium other than the HDD. In the configuration, the used media identification flag for identifying “whether the previous access destination is the first media (HDD) or the second media (other than the HDD)” is recorded, and this flag and the type of the scheduled media to be used are recorded. Then, the fall detection control for retracting the head of the HDD is validated or invalidated. For example, when accessing a medium (such as a DVD) other than the HDD, the drop detection control is invalidated after the HDD head is retracted. If the previous process is a data recording process for the HDD, the HDD internal cache sweep process is executed to execute head retraction and invalidate the drop detection control. Further, when the fall detection control is executed, processing for turning off both the HDD and the medium other than the HDD is executed, and when returning, both are turned on and then the bus connection is made. By performing these processes, the HDD can be prevented from being damaged or lost in any process.

It is a figure explaining the example of a structure of the apparatus which uses the head retraction | saving process based on the fall detection effective as a hard-disk protection mechanism, and HDD and recording media other than HDD together. It is a figure which shows the structural example of the information processing apparatus of this invention. It is a figure which shows the flowchart explaining the sequence of the information recording process with respect to the medium in the information processing apparatus of this invention. It is a figure explaining the example of the recording destination flag and reproduction | regeneration origin flag stored in memory. It is a figure which shows the flowchart explaining the example of the control aspect of the data recording process of a sector unit. It is a figure which shows the flowchart explaining the sequence of the information reproduction process from the media in the information processing apparatus of this invention. It is a figure explaining the system configuration | structure of the information processing apparatus which concerns on one Example of this invention. It is a figure explaining the system configuration | structure of the information processing apparatus which concerns on one Example of this invention. It is a figure explaining the structural example of the digital video camera as one Example of the information processing apparatus of this invention. It is a figure explaining the structural example of PC as one Example of the information processing apparatus of this invention.

Explanation of symbols

101 Host 102 Acceleration sensor 103 First medium (HDD)
104 Power supply a
111 Bus switch 112 Power switch 113 Bus 153 First medium (HDD)
154 Power supply a
155 Second media (DVD)
156 Power supply b
201 Host 202 Acceleration sensor 203 First medium (HDD)
204 Power supply a
205 Second media (DVD)
206 Power supply b
211 Bus switch 212 Power switch 213 Power switch 214 Bus 281 Application 282 File system 283 Device driver 284 Information recording medium 300 Application 301 Recording application 302 Playback application 310 File system 311, 312 Mount drive information 320, 330 File system 350, 351, 352 Device driver 361, 362 Information recording medium 370 Memory 401 Control unit (CPU)
402 Camera Function Control Unit 411 Optical Lens Unit 412 Photoelectric Conversion Unit 413 Image Signal Processing Unit 414 Image Input / Output Unit 415 Liquid Crystal Display 416 Audio Input / Output Unit 417 Audio Processing Unit 418 Built-in Memory (RAM)
419 Internal memory (ROM)
420 Operation Input Unit 431 Communication Unit 432 Drive 441 Power Supply 451 Acceleration Sensor 501 CPU (Central Processing Unit)
502 ROM (Read-Only-Memory)
503 RAM (Random Access Memory)
504 Host bus 505 Bridge 506 External bus 507 Interface 508 Keyboard 509 Pointing device 510 Display 511 HDD (Hard Disk Drive)
512 Drive 514 Connection port 515 Communication unit 516 Acceleration sensor 521 Removable recording medium 522 External connection device

Claims (19)

A first medium constituted by an HDD (Hard Disk Drive);
A second medium other than the HDD;
Control means for executing data recording or reproduction processing using the first medium or the second medium;
The control means includes
When recording or playback processing using the first media or the second media is executed, a processing is performed for recording a used media identification flag indicating which media is used in a memory;
When newly executing the recording or reproduction process using the first medium or the second medium, the used medium identification flag is read, and information is read according to the read used medium identification flag and the type of medium scheduled to be used. An information processing apparatus comprising: a control for switching whether or not to perform a drop detection control for performing a head retracting process of a hard disk based on a drop detection of a processing apparatus. The control means includes
2. The information processing apparatus according to claim 1, wherein when the medium to be used is a first medium (HDD), the information processing apparatus is configured to perform control for setting to perform drop detection control. The control means includes
2. The information processing apparatus according to claim 1, wherein when a medium to be used is a second medium (other than an HDD), the information processing apparatus is configured to perform control so that the drop detection control is not performed. The control means includes
The media to be used is the first media (HDD),
When the use media identification flag indicates that the second media (other than the HDD) is used,
The information processing apparatus according to claim 1, wherein the information processing apparatus is configured to execute a process of changing to a setting for performing drop detection control. The control means includes
The media scheduled to be used is the second media (other than HDD),
When the use media identification flag indicates that the first media (HDD) is used,
The information processing apparatus according to claim 1, wherein the information processing apparatus is configured to execute a head retraction process of a first medium (HDD) to perform a process of changing to a setting that does not perform drop detection control. The control means includes
The media scheduled to be used is the second media (other than HDD),
When the use media identification flag indicates that a recording process using the first media (HDD) has been executed,
2. The configuration according to claim 1, wherein the internal cache in the first medium (HDD) is swept out, the head evacuation process is performed, and the processing is changed to a setting in which the drop detection control is not performed. The information processing apparatus described. The control means includes
When a recording process using the first medium or the second medium is executed, a recording destination flag indicating which recording process is used is recorded in the memory,
When the playback process using the first medium or the second medium is executed, a process of recording in the memory a playback source flag indicating which of the media is used for the playback process is executed.
When a recording process using the first medium or the second medium is newly executed, the recording destination flag is read, and the information processing apparatus determines whether to read the recording destination flag and the type of the medium to be used. Performs control to switch whether or not to perform fall detection control that performs hard disk head retraction processing based on fall detection,
When a playback process using the first medium or the second medium is newly executed, the playback source flag is read, and according to the read source flag and the type of the medium scheduled to be used, The information processing apparatus according to claim 1, wherein the information processing apparatus is configured to perform control for switching whether or not to perform drop detection control for performing head retraction processing of a hard disk based on drop detection. The control means includes
When the fall detection information is input during the execution of the fall detection control,
Disconnect the bus connecting the first medium (HDD) and the second medium (other than the HDD),
The information processing apparatus according to claim 1, wherein the information processing apparatus is configured to perform a process of turning off power to the first medium (HDD) and the second medium (other than the HDD). The control means includes
In the return process after performing the process of inputting the fall detection information and turning off the power of the first medium (HDD) and the second medium (other than the HDD) during the execution of the drop detection control,
A process of connecting a bus connecting the first medium (HDD) and the second medium (other than the HDD) after executing the process of turning on the power of the first medium (HDD) and the second medium (other than the HDD) The information processing apparatus according to claim 1, wherein the information processing apparatus is configured to execute An information processing method executed in an information processing apparatus that performs data recording or reproduction processing by selectively using a first medium constituted by an HDD (hard disk drive) and a second medium other than the HDD,
A flag recording step of recording, in the memory, a used media identification flag indicating which media is used when the control means executes recording or playback processing using the first media or the second media;
When the previous period control means newly executes recording or playback processing using the first medium or the second medium, the used medium identification flag is read, and the read used medium identification flag and the type of medium to be used are read. A drop detection control setting step for performing control to switch whether or not to perform drop detection control for performing head retraction processing of the hard disk based on the drop detection of the information processing device,
The information processing method characterized by performing. The fall detection control setting step includes:
The information processing method according to claim 10, wherein when the medium scheduled to be used is a first medium (HDD), the step of performing control for setting to perform drop detection control is performed. The fall detection control setting step includes:
11. The information processing method according to claim 10, wherein when the medium scheduled to be used is a second medium (other than an HDD), the step of performing control for setting to not perform drop detection control is performed. The fall detection control setting step includes:
The media to be used is the first media (HDD),
When the use media identification flag indicates that the second media (other than the HDD) is used,
The information processing method according to claim 10, wherein the information processing method is a step of executing a process of changing to a setting for performing drop detection control. In the information processing method,
The controller is
The media scheduled to be used is the second media (other than HDD),
When the use media identification flag indicates that the first media (HDD) is used,
11. The information processing method according to claim 10, wherein a head retraction process of the first medium (HDD) is executed to perform a process of changing to a setting that does not perform drop detection control. In the information processing method,
The controller is
The media scheduled to be used is the second media (other than HDD),
When the use media identification flag indicates that a recording process using the first media (HDD) has been executed,
11. The information according to claim 10, wherein a process of sweeping out the internal cache in the first medium (HDD), executing a head retracting process, and changing to a setting not performing drop detection control are performed. Processing method. The flag recording step includes
When a recording process using the first medium or the second medium is executed, a recording destination flag indicating which recording process is used is recorded in the memory,
A step of executing a process of recording in a memory a reproduction source flag indicating which of the media has been used when the reproduction process using the first medium or the second medium is performed;
The fall detection control setting step includes:
When a recording process using the first medium or the second medium is newly executed, the recording destination flag is read, and the information processing apparatus determines whether to read the recording destination flag and the type of the medium to be used. Performs control to switch whether or not to perform fall detection control that performs hard disk head retraction processing based on fall detection,
When a playback process using the first medium or the second medium is newly executed, the playback source flag is read, and according to the read source flag and the type of the medium scheduled to be used, 16. The information processing method according to claim 10, which is a step of performing control for switching whether or not to perform drop detection control for performing a head retracting process of a hard disk based on fall detection. In the information processing method,
When the control means inputs the fall detection information during the execution of the fall detection control,
Disconnect the bus connecting the first medium (HDD) and the second medium (other than the HDD),
The information processing method according to any one of claims 10 to 16, wherein a process of turning off the power of the first medium (HDD) and the second medium (other than the HDD) is performed. In the information processing method,
The control means includes
In the return process after performing the process of inputting the fall detection information and turning off the power of the first medium (HDD) and the second medium (other than the HDD) during the execution of the drop detection control,
A process of connecting a bus connecting the first medium (HDD) and the second medium (other than the HDD) after executing the process of turning on the power of the first medium (HDD) and the second medium (other than the HDD) The information processing method according to claim 10, wherein the information processing method is executed. A computer program that executes information processing in an information processing apparatus that performs data recording or reproduction processing by selectively using a first medium constituted by an HDD (hard disk drive) and a second medium other than the HDD. ,
A flag recording step for causing the control means to record a used medium identification flag indicating which medium is used in a memory when the recording or reproducing process using the first medium or the second medium is executed;
When the first-time control means newly performs recording or playback processing using the first medium or the second medium, the used medium identification flag is read, and the read used medium identification flag and the type of medium to be used are read. A drop detection control setting step for performing a control to switch whether or not to perform a drop detection control for performing a head retraction process of the hard disk based on a drop detection of the information processing device,
A computer program for executing

Images