How to use the mhdd program. We check and repair a hard drive with MHDD. Description of the MHDD program

MHDD is a powerful tool designed to work with hard drives of computers, laptops, and external hard drives. Work with drives is low.

Functions performed by the MHDD program:

  • Diagnostics hard disk.
  • Hard disk SMART system management.
  • Password protection capability.
  • Changing the sound characteristics of the hard drive.
  • Changing the size of the drive.
  • Recovery and low formatting of the hard disk surface

How to start the MHDD program

First, we need to download the program, it is in the public domain for everyone and is completely free.

After downloading the program, you need to write it to a flash drive, for this we will use the program. Open the downloaded image using the UltraIso program.

After opening our image, open the "Bootstrapping" menu item and select the "Burn disk image ..." menu item.

In the window that opens, select the flash drive that we will use to record the program, and click "Record".

After completing the recording, you must restart your computer and boot from the recorded flash drive. Do not forget to put your controller in IDE mode, as the program only works with this type of controller. After booting from the flash drive, select the 2nd menu item and press Enter, the selection is made using the "Up", "Down" keys.

Now we will see all available hard drives connected to the computer. To select the required disk, you must enter its port number, in my case it is port number 1.

After that, the program is ready to work with the selected hard disk. To reselect the hard drive, press the Shift + F3 key combination, so you can select another drive to work with at any time without restarting the MHDD program.

List of commands for mHDD programs can be seen by pressing the "F1" button. Press the down key to scroll through the commands.

Viewing SMART Information

You can view the SMART state of your hard disk by the “smart att” command and by pressing the “F8” key after entering. Now we see the SMART information of the hard drive.

The main attributes to look out for are:

Reallocated Sectors Count - this value indicates the number of sectors that were reallocated by the hard disk, if the value in the "RAW" column is greater than 50 (100), then you need to replace hDD, or urgently transfer all important information to another hard drive that is in good condition.

HAD Temperature - this parameter shows the temperature of the hard disk, the normal temperature for the hard disk to work varies from (Val) 20 ° C to (Worts) 40 ° C, (RAW) average value 30 ° C, if the value is higher, you need to think about cooling.

Ultra ATA CRC error rate - means the number of errors that occur when transferring data over an IDE / SATA cable. The value of this attribute should be equal to zero, if the value is greater, then it is necessary to replace the cable, or remove the hard drive overclocking, if any.

By looking at the SMART of the hard drive, we can understand what state it is in and take action.

Scan your hard drive and check for errors

In order to scan the surface of the hard disk, you need to use the "scan" command, when you enter this command, press Enter, a window with scan parameters will open. After selecting the desired parameters, press "F4" to start scanning.

Basic parameters of hard disk scanning:

Start LBA and End LBA are parameters in which the sector from which the scanning should be started and the sector where the scanning should be finished is set.

Remap - this parameter will automatically reassign the bad (erroneous) sector that will be detected during the scan.

Erase Delays - if you enable this parameter when scanning a hard disk, then when a broken (erroneous) block is found, the program will erase such a sector. The accumulator will recalculate the ECC fields for each sector. This helps to get rid of the so-called "soft-bad" blocks, which are caused by system errors rather than physical damage to the hard drive.

If this is the first time you run a hard disk scan, you must perform it without activating the Remap and Erase Delays parameters, since these parameters may lead to data loss.

In the event that the first scan found broken sectors, it is necessary to transfer all the information from the hard disk and scan with the activated Erase Delays parameter, for this, when selecting the scanning parameters, switch this parameter to ON and start scanning.

After scanning with the Erase Delays parameter, we run another scan without enabling any parameters to determine if there are any bad sectors. If the rescanning identified the remaining bad sectors, we can be sure that this is a physical damage to the hard disk, in this case it is worth resorting to a more radical solution, namely, run rescanning with the Remap option enabled.

If, when starting the scan, you see that each block is detected as a bad sector, it makes no sense to carry out low-level formatting. In this case, the hard disk surface or the service area is damaged, the standard tools of the MHDD program will not be able to fix it.

Low-level formatting

It is worth resorting to low-level formatting if you need to completely delete information from the hard disk so that it cannot be restored, since when you delete information in Windows OS, you can restore deleted files.

Or your hard drive has slowed down significantly and began to work slowly, but no bad sectors were found, then sector-by-sector erasure can restore the read and write speed of the hard disk.

In order to start formatting, enter the "erase" command and press Enter, we will be prompted to enter the block number from which you need to start formatting, and the block number on which you want to end. If you are going to format the entire disk surface, then do not enter anything, since the first and last sectors are suggested by the standard, but simply agree by pressing Enter. To start formatting, enter the value "y" and wait for the end.

Reducing storage space

The "hpa" command is used to reduce the volume of the drive, when you enter the command, the MHDD program will ask for a new number of available sectors, enter a new number and press Enter. Also, in order to remove restrictions on reducing the volume of the hard drive, use the "nhpa" command.

Password protection management

To set up password protection on a hard disk, you need to use the "pwd" command (not all hard disks support this function). Password protection is suitable for those who need to save information even if the hard disk is lost, since it will not work to crack this protection, in order to remove the password from the hard disk, you must completely erase the data. Also, when installing such protection, it will not be possible to start the system without first entering the password on the hard disk.

Please note that you will not be able to recover your password, and if you lose your password, you will not be able to recover information.

Hard disk noise management

Almost all modern storage devices now support the Acoustic Management function. You can significantly reduce the noise of the hard drive when moving the head by slowing down the movement speed, but at the same time reducing the speed of writing and reading the hard drive. In order to configure this function use the "aam" command and press Enter. After that, you need to enter a value from 0 to 126, where 126 is the quietest level of operation, to cancel this parameter, you must enter the value "D".

Conclusion

The MHDD program is a fairly functional solution for working with hard drives, but also quite dangerous, since improper use can lead to data loss or causing the hard drive to malfunction. The program will allow you to work with different types of hard drives with different controllers.

MHDD is a powerful tool designed to work with hard drives of computers, laptops, and external hard drives. Work with drives is low.

Functions performed by the MHDD program:

  • Hard disk diagnostics.
  • Hard disk SMART system management.
  • Password protection capability.
  • Changing the sound characteristics of the hard drive.
  • Changing the size of the drive.
  • Recovery and low formatting of the hard disk surface

How to start the MHDD program

First, we need to download the program, it is in the public domain for everyone and is completely free.

After downloading the program, you need to write it to a flash drive, for this we will use the program. Open the downloaded image using the UltraIso program.

After opening our image, open the "Bootstrapping" menu item and select the "Burn disk image ..." menu item.

In the window that opens, select the flash drive that we will use to record the program, and click "Record".

After completing the recording, you must restart your computer and boot from the recorded flash drive. Do not forget to put your controller in IDE mode, as the program only works with this type of controller. After booting from the flash drive, select the 2nd menu item and press Enter, the selection is made using the "Up", "Down" keys.

Now we will see all available hard drives connected to the computer. To select the required disk, you must enter its port number, in my case it is port number 1.

After that, the program is ready to work with the selected hard disk. To reselect the hard drive, press the Shift + F3 key combination, so you can select another drive to work with at any time without restarting the MHDD program.

The list of commands for the MHDD program can be seen by pressing the "F1" button. Press the down key to scroll through the commands.

Viewing SMART Information

You can view the SMART state of your hard disk by the “smart att” command and by pressing the “F8” key after entering. Now we see the SMART information of the hard drive.

The main attributes to look out for are:

Reallocated Sectors Count - this value indicates the number of sectors that have been reassigned by the hard drive, if the value in the "RAW" column is more than 50 (100), then it is necessary to replace the hard drive, or urgently transfer all important information to another hard drive located in good condition.

HAD Temperature - this parameter shows the temperature of the hard disk, the normal temperature for the hard disk to work varies from (Val) 20 ° C to (Worts) 40 ° C, (RAW) average value 30 ° C, if the value is higher, you need to think about cooling.

Ultra ATA CRC error rate - means the number of errors that occur when transferring data over an IDE / SATA cable. The value of this attribute should be equal to zero, if the value is greater, then it is necessary to replace the cable, or remove the hard drive overclocking, if any.

By looking at the SMART of the hard drive, we can understand what state it is in and take action.

Scan your hard drive and check for errors

In order to scan the surface of the hard disk, you need to use the "scan" command, when you enter this command, press Enter, a window with scan parameters will open. After selecting the desired parameters, press "F4" to start scanning.

Basic parameters of hard disk scanning:

Start LBA and End LBA are parameters in which the sector from which the scanning should be started and the sector where the scanning should be finished is set.

Remap - this parameter will automatically reassign the bad (erroneous) sector that will be detected during the scan.

Erase Delays - if you enable this parameter when scanning a hard disk, then when a broken (erroneous) block is found, the program will erase such a sector. The accumulator will recalculate the ECC fields for each sector. This helps to get rid of the so-called "soft-bad" blocks, which are caused by system errors rather than physical damage to the hard drive.

If this is the first time you run a hard disk scan, you must perform it without activating the Remap and Erase Delays parameters, since these parameters may lead to data loss.

If the first scan detects bad sectors, it is necessary to transfer all the information from the hard disk and scan with the activated Erase Delays parameter, for this, when selecting the scanning parameters, switch this parameter to ON and start scanning.

After scanning with the Erase Delays parameter, we run another scan without enabling any parameters to determine if there are any bad sectors. If the rescanning identified the remaining bad sectors, we can be sure that this is a physical damage to the hard disk, in this case it is worth resorting to a more radical solution, namely, run rescanning with the Remap option enabled.

If, when starting the scan, you see that each block is detected as a bad sector, it makes no sense to carry out low-level formatting. In this case, the hard disk surface or the service area is damaged, the standard tools of the MHDD program will not be able to fix it.

Low-level formatting

It is worth resorting to low-level formatting if you need to completely delete information from the hard disk so that it cannot be restored, since when you delete information in Windows OS, you can restore deleted files.

Or your hard drive has slowed down significantly and began to work slowly, but no bad sectors were found, then sector-by-sector erasure can restore the read and write speed of the hard disk.

In order to start formatting, enter the "erase" command and press Enter, we will be prompted to enter the block number from which you need to start formatting, and the block number on which you want to end. If you are going to format the entire disk surface, then do not enter anything, since the first and last sectors are suggested by the standard, but simply agree by pressing Enter. To start formatting, enter the value "y" and wait for the end.

Reducing storage space

The "hpa" command is used to reduce the volume of the drive, when you enter the command, the MHDD program will ask for a new number of available sectors, enter a new number and press Enter. Also, in order to remove restrictions on reducing the volume of the hard drive, use the "nhpa" command.

Password protection management

To set up password protection on a hard disk, you need to use the "pwd" command (not all hard disks support this function). Password protection is suitable for those who need to save information even if the hard disk is lost, since it will not work to crack this protection, in order to remove the password from the hard disk, you must completely erase the data. Also, when installing such protection, it will not be possible to start the system without first entering the password on the hard disk.

Please note that you will not be able to recover your password, and if you lose your password, you will not be able to recover information.

Hard disk noise management

Almost all modern storage devices now support the Acoustic Management function. You can significantly reduce the noise of the hard drive when moving the head by slowing down the movement speed, but at the same time reducing the speed of writing and reading the hard drive. In order to configure this function use the "aam" command and press Enter. After that, you need to enter a value from 0 to 126, where 126 is the quietest level of operation, to cancel this parameter, you must enter the value "D".

Conclusion

The MHDD program is a fairly functional solution for working with hard drives, but also quite dangerous, since improper use can lead to data loss or causing the hard drive to malfunction. The program will allow you to work with different types of hard drives with different controllers.

Everything breaks someday, and the hard drive is no exception. If your hard drive is defective, then it is worth checking it with the MHDD program. Earlier we analyzed what factors can affect the speed of the computer and what hard disk errors exist.

MHDD is one of the most popular free programs for thorough diagnostics and self-repair of your drive. In this article, we figure out how to restore functionality using this program.

Checking the hard drive with MHDD

Attention - you carry out all manipulations at your own peril and risk, since using this utility you can harm the drive and all the information on it.

To begin with, you should download an image of the program for burning to a USB flash drive or CD. To do this, download the archive with the program from the official website: download MHDD for free.

Unpack the file and burn the disk image in any way convenient for you. I used one of the most popular programs UltraISO.

Reboot your computer, enter BIOS and choose to boot from a USB flash drive or any other drive on which you have the MHDD program written.

You will see the program screen with the choice of the boot option. The first item is for owners of a SCSI controller, by default the checkbox is at the second item. In our case, press Enter.

On the next screen, we have to choose which hard drive to work with. Pay attention to the list of devices and enter the number with which the disc is signed. In our case, we have one disk in the system.

Let's start diagnosing the disk. To do this, call the menu with the F4 button to reveal the presence of broken sectors. Press F4 again and start the diagnostic process.

On the left you will see a map of the disk, which displays the blocks being scanned by the program at the moment. If MHDD finds a bad, it will mark it with a red X or a green S.

If you find bad blocks, immediately copy all important data from the drive, since errors on the hard disk lead to the loss of all information, and the process of getting rid of Bad blocks implies a complete disk cleanup.

If the disk has important information, it is worth repeating the scan with the command Erase delays, which will overwrite all broken sectors. Otherwise, you should use Erase for complete removal and cleaning.

In case, after all this, red badges remain on the hard disk, use the command Remaphowever, it's best to consider buying a new hard drive right away.

I bought a new hard disk drive (HDD) or there is a suspicion that your old HDD is no longer the same - I strongly recommend checking it for bad.

Bad, bad, bad sector, bad block - (from the English " bad”- bad) - bad, unreadable, unreliable, unreliable file, disk sector.

  • Official Mhdd website (in Russian)
  • Download the latest version of the iso image (at the time of this writing, the article is version 4.6) mhdd32ver4.6iso

I will give step by step instructions on HDD testing using the example of the program MHDD... The program with the proper skill and experience gives a chance fix some bady, unknowingly it's better not to try to fix anything !!!. But checking the health of the disk is quite simple and painless, and I will write about this.

How does scanning work?

  1. MHDD sends command VERIFY SECTORS with number LBA (sector number) and sector number as parameters
  2. The drive raises the flag BUSY (disk is locked)
  3. MHDD starts timer (the timer measures the disk lock time, i.e. when it was BUSY or in Russian - busy!)
  4. After the drive has executed the command, it drops the flag BUSY
  5. MHDD calculates the time spent by the drive and displays the corresponding block on the screen ( tabular section on the right ). If an error is encountered ( bad block), the program prints out the corresponding letter that describes the error.

MHDD repeats steps 1-5 until the end sector.

How to understand the scan results?

The presence of red ( \u003e 500ms) blocks on a completely healthy drive is unacceptable. I sound the alarm when green blocks appear (< 150ms ). You can try to fix these blocks by erasing the entire surface of the disk (of course, all data will be lost) and, if this does not help, you can do conclusions (the drive is no longer reliable enough).

Alphanumeric blocks indicate the presence of BAD blocks on the surface.

Decryption of mhdd errors:

  • UNC (Uncorrectable Data Error) - Failed to correct the data with redundant code, the block was recognized as unreadable. It can be both a consequence of a violation of the data checksum, and a consequence of physical damage to the HDD;
  • ABRT (Aborted Command) - hdd rejected the command as a result of a malfunction, or the command is not supported by this HDD (perhaps a password is set, an old or too new model ...).
  • IDNF (ID Not Found) - Sector not identified. Usually indicates the destruction of the microcode or format of the lower level of the HDD. For working hard drives, such an error is issued when trying to access a nonexistent address (the problem is that modern sector screws do not always have headers);
  • AMNF (Address Mark Not Found) - it is impossible to read the sector, usually as a result of a serious hardware problem (for example, on a Toshiba HDD, Maxtor - indicates a malfunction of the magnetic heads);
  • T0NF (Track 0 Not Found) - Unable to recalibrate to the start cylinder of the work area. On modern HDDs it says about a malfunction of the microcode or magnetic heads;
  • BBK (Bad Block Detected) - Found a bad block. The error is outdated;

More information about these errors can be found in the description of the ATA standard on the website www.t13.org (but finding the necessary document there is a tedious business).

Use this software “as is”. MHDD is a very powerful and, at the same time, very dangerous program. No one can be held responsible for any harm caused by the MHDD program.

About MHDD project

MHDD is a small but powerful freeware program that is designed to work with drives at the lowest possible level.
The first version was released in 2000 by me, Dmitry Postrigan. It was able to scan the surface of an IDE drive in CHS mode. My main goal is to develop trustworthy diagnostic software for drives.

Now MHDD is much more than a diagnosis. You can do whatever you want with MHDD: diagnose drives, read / write arbitrary sectors, manage the SMART system, password system, noise management system, and resize the drive. And that's not all, as MHDD has a so-called ATA / SCSI terminal that allows you to send any command to a drive with SCSI, IDE or Serial ATA interface. Moreover, you can write scripts, thus creating your own procedures.

What's inside MHDD

mhdd.exe Executable program mhdd.hlp This file is used by the SMART command help system. cfg / mhdd.cfg In this file, MHDD stores the configuration

During the first launch, the program will create a file log / mhdd.log... This is the main log file. All your actions and test results will be recorded in this file.

How it works

Let's imagine how it works operating system MSDOS when it needs to read a sector from the drive. MSDOS will simply "ask" the BIOS to do this. Then, the BIOS looks in its tables for the port addresses of the required drive, performs the necessary checks, and then starts exchanging data with the drive. After everything is finished, the BIOS returns the result to the operating system.

Let's take a look at the diagram. Here's how a typical DOS program works with a drive:

MSDOS BIOS Utility IDE / SATA Controller Storage

Now let's take a look at how MHDD works:

MHDD Controller IDE / SATA Storage

The main difference: MHDD does not use BIOS functions and interrupts... Thus, you don't even need to define the drive in BIOS Setup. You can even turn on the drive after MSDOS and MHDD are loaded, since MHDD works directly with the drive registers and does not pay attention to such "little things" as, for example, partitions, file systems and BIOS restrictions.

Attention:
Never run MHDD from a drive that is on the same physical IDE channel (cable) to which the tested drive is connected (to the cable, to the channel). You will have significant data corruption on both drives! In this regard, by default, MHDD does not work with the PRIMARY channel, since most users have MHDD there. To unblock the Primary channel, start MHDD, then exit, then edit the MHDD.CFG file. Or use the command line switch / ENABLEPRIMARY.

MHDD uses DOS ASPI driver to access SCSI devices. If you don't plan to work with SCSI drives, then you don't need any drivers.

Hardware Requirements and Supported Hardware

Platform:

  • Intel Pentium processor or better
  • 4 megabytes of RAM
  • DR-DOS, MSDOS version 6.22 and higher
  • Any bootable device (USB, CDROM, FDD, HDD)
  • Keyboard

IDE / SATA controllers:

  • Anyone integrated into north bridge (port addresses: 0x1Fx for primary channel,
    0x17x for the secondary channel)
  • PCI UDMA controllers (automatically detected): HPT, Silicon Image, Promise (not all), ITE,
    ATI may be different. Even some RAID controllers are supported (in this case
    MHDD works with each physical drive separately)
  • UDMA / RAID controllers integrated in motherboard as a separate microcircuit Drives:
    • Any IDE or Serial ATA with a volume of at least 600 megabytes. LBA mode
      fully supported, however, I removed the CHS code from MHDD in versions 3.x
    • Any IDE or Serial-ATA up to 8388607 terabytes. LBA48 mode
      fully supported
    • Any SCSI drive with sector size from 512 to 528 bytes

    Diagnostic IDE Drive should be switched to MASTER mode. All SLAVE devices must be turned off.

    Other devices

    • Any SCSI removable media such as CDROM, tape. The maximum supported sector size is 4096 bytes

    Downloading the MHDD installation package

    You need to decide which package you need: a CD image, a floppy image, or just an archive. You can burn the CD image using any software that supports ISO burning. Your CD will be bootable.

    First start. Important information

    Some people think that MHDD is a very complex program. They assumed that MHDD should be very simple, but when they ran it the first time without reading the documentation, they were disappointed. MHDD is very difficult and dangerous program. MHDD is much easier for those familiar with internal device drives.

    It is very important to understand that you will have to spend several hours, and possibly days, before you get meaningful results from MHDD. I highly recommend trying a few non-defective drives before you start working with the defective ones.

    On first launch, the program will create a new file. / Cfg / mhdd.cfg. The IDE Primary channel is disabled by default.

    You will see a menu for selecting drives. Choose any device you want. You can call this menu at any time by pressing SHIFT + F3.

    Now you can press F1 and use any MHDD commands. Please, be extremely attentivewhen working with MHDD the first few times.

    I would recommend starting with the EID, SCAN, STOP, CX and TOF commands. Some of them have keyboard shortcuts assigned, for example F4 for the SCAN command.

    Take a look at registers... Any IDE or Serial ATA device should report DRIVE READY and DRIVE SEEK COMPLETE, so you should see the DRDY and DRSC flags. The BUSY flag signals that the drive is performing some operation (for example, reading or writing). Some flags such as WRITE FAULT and TRACK 0 NOT FOUND are deprecated, you should never see them. The INDEX flag is also deprecated, however it can sometimes blink. The DATA REQUEST (DREQ) flag indicates that the drive is requesting a data transfer.

    If you notice the ERROR (ERR) flag, look at the error register. You will be able to determine the type of error that occurred. See ATA / ATAPI standard for further information on commands and registers.

    Using MHDD Commands

    Surface scanning

    Scanning any device is possible only if it can be determined by the ID or EID commands (or by pressing F2). To scan, type SCAN and press ENTER, or use F4... You will see a menu where you can change some settings. By default, the starting sector is zero (starting sector). The ending sector is equal to the maximum possible (end of disk). All functions destructive with respect to user data (Remap, Erase Delays) are disabled by default.

    Press F4 again to start scanning. MHDD scans drives in blocks. For IDE / SATA drives, one block equals 255 sectors (130560 bytes).

    How scanning works

    1. MHDD sends the VERIFY SECTORS command with the LBA number (sector number) and the number of sectors as parameters 2. The drive raises the BUSY flag 3. MHDD starts the timer 4. After the drive has executed the command, it drops the BUSY flag 5. MHDD calculates the spent drive time and displays the corresponding block on the screen. If an error (bad block) is encountered, the program prints the corresponding letter that describes the error.

    MHDD repeats steps 1-5 until the end sector. If you need a scan log, you can find it in the log / mhdd.log file.

    If the scan reveals errors, the first thing to do is copy all the data from the drive. Then you need to perform a complete erase of the surface using the ERASE command, which erases every sector on your drive. The accumulator will recalculate the ECC fields for each sector. This helps to get rid of the so-called "soft-bad" blocks. If erasing does not help, start scanning with the REMAP option enabled.

    If you see that each block contains an error, do not try to erase the drive or scan with the REMAP option enabled. Most likely, the drive has a damaged service area, and this cannot be fixed by standard MHDD commands.

    Viewing SMART Attributes

    You can dial SMART ATT or press F8 to view the attributes. What do they mean?

    Perhaps the most important attribute for a modern drive is "Reallocated Sectors Count" (Raw value). This value tells you how many remapped sectors are on the disk. A normal drive has a raw value of zero. If you see a value over 50, the drive has a problem. This can mean a defective power supply, vibration, overheating, or just a defective drive.

    Take a look at attribute 194 - temperature. Good values \u200b\u200bare between 20 and 40 degrees. Some drives do not report temperature.

    The UDMA CRC error rate attribute means the number of errors that occur when transferring data over an IDE / SATA cable. The normal raw value of this attribute is zero. If you see a different value, you need to urgently replace the cable. Also, overclocking greatly affects the number of errors of this type.

    Other attributes are usually less important. See ATA / ATAPI standard for more information on attributes and SMART tests.

    Drive identification commands

    Try commands ID and EID to view information about your drive. See ATA / ATAPI standard for more information.

    Erase sector groups or an entire disk

    You can use the ERASE command. If your drive was recognized in BIOS Setup (or by POST), MHDD will try to use BIOS functions to erase the drive in UDMA mode. If you don't want MHDD to try to use the BIOS, use the / DISABLEBIOS option.

    Reducing storage space

    Use HPA command to limit drive size. The program will ask for the new number of available sectors. In order to remove the set restrictions, use the NHPA command. Cycle the drive off-on before using the NHPA command. In accordance with ATA / ATAPI standard , you can change the storage capacity only once during one storage cycle.

    Password protection management

    Use the PWD command to lock the drive with a USER password. In accordance with ATA / ATAPI standard , you need to turn off and on the drive for the changes to take effect.

    MHDD has two commands for unlocking drives: UNLOCK and DISPWD. UNLOCK unlocks the drive until the first shutdown. In order to disable the password system, you must first use the UNLOCK command, and replace the DISPWD command (the password must be known).

    The master password is set by the manufacturer and can be used to unlock.

    Reading sectors to a file

    You can read just a few sectors or an entire disk into a file or set of files. Try the TOF command. The program skips defective sectors. If you plan to create an image larger than 1 gigabyte, it is better to use the ATOF command, as it can automatically "slice" images.

    Writing sectors from file to disk

    Use the FF command to write sectors to disk. You will be asked to enter the number of the first sector to record and the number of sectors to record in succession.

    Drive Noise Management

    Almost all modern drives support Acoustic Management.
    You can reduce the noise generated by the movement of the heads by decreasing their speed. Use the AAM command to configure.

    Drive configuration

    Using the CONFIG command, you can view and change the configuration of the drive, for example, UDMA maximum mode, Security, SMART, AAM, HPA support, LBA48 mode support. It is also possible to resize the disk. Some manufacturers reduce the size of the disk by changing the configuration, you have the opportunity to restore the original size.

    Batch run commands

    You can write a very simple batch file (see the example in the BATCH directory) where you describe everything you want to do. Press F5 when you want to run such a file for execution.

    ATA / SCSI terminal, scripts

    Please see the SCRIPTS catalog. There you will find some examples with a detailed description of how it works. Use period and filename to run the script. For example, to run the test script that comes with MHDD, enter:

    MHDD\u003e .test

    Other commands

    Click F1... You will see a quick reference for all MHDD commands. For more detailed information, please use the MAN team.

    Command line parameters

    / NOPINGPONG Disable some sounds / DISABLEBIOS Disable erasing (ERASE) via BIOS / DISABLESCSI Disable SCSI module / ENABLEPRIMARY Connect Primary IDE / SATA Channel / RO This key is used to launch MHDD on write-protected media. It disables attempts to create temporary files, as well as disables logging.

    © 2005 Dmitry Postrigan

 
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DIGMA The Digma trademark is one of the leading developers and manufacturers of portable devices: digital photo frames; MP3 players; navigation systems; storage media. Products of the Digma trademark are a harmonious combination of innovative technologies.
Specifications and competitor comparison
The Asus Transformer Book T100TA is a reasonably priced 10-inch Windows 8 tablet that, thanks to its keyboard, can also function as a laptop. This is not the first hybrid available - the Vivo Tab Smart tablet computer