《mhdd》工具使用详解与命令解...

《mhdd》工具使用详解与命令解释（MHDD tool use detailed
explanation and command）
"MHDD" tool use detailed explanation and command
/viewthread.php? Tid=1638&fpage=3?
China's hard disk base network () original reproduced prohibited
China hard disk base network
About MHDD China hard disk base network
1, MHDD is Russia's Maysoft company produced professional hard disk tool software, with many other hard disk tools, software can not match the powerful function.
2, whether in CHS or MHDD in LBA mode, you can access to large capacity hard disk 128G (sector range from 512 to 137438953472 can be accessed), even if you use the 286 computer, without BIOS support, without any interruption of support;
3, MHDD is best to run in pure DOS environment; Chinese hard disk base network
4, MHDD can not rely on the motherboard BIOS direct access to the IDE port, but be careful not to use the original Intel brand motherboard;
5, do not run MHDD on the hard disk that you want to detect;
China hard disk base network
6, MDD need to record data at runtime, so it can not run in write protected storage device (such as write protected floppy disk, CD, etc.); Chinese hard disk base network
Download each version of MHDD:
MHDD2.9.rar (93 KB) click on the "quick download" and click "quick download MHDD2.9.rar" (93 KB)
MHDD2.9 hard disk Edition
Number of downloads: 378
2005-8-14 14:43
MHDD29CN.rar (605 KB) click on the "quick download" and click "quick download MHDD29CN.rar" (605 KB)
MHDD2.9 Chinese version needs to use Chinese platform
Number of downloads: 539
2005-8-14 14:43
MHDD3.6.rar (242 KB) click on the "quick download" and click "quick download MHDD3.6.rar" (242 KB)
MHDD3.6 floppy disk version
Number of downloads: 96
2005-8-14 14:43
MHDD3.9.rar (247 KB) click on the "quick download" and click "quick download MHDD3.9.rar" (247 KB)
MHDD3.9 floppy disk version
Number of downloads: 98
2005-8-14 14:43
MHDD4.0.rar (249 KB) click on the "quick download" and click "quick download MHDD4.0.rar" (249 KB)
MHDD4.0 floppy disk version
Number of downloads: 90
2005-8-14 14:43
MHDD4.2.rar (103 KB) click on the "quick download" and click "quick download MHDD4.2.rar" (103 KB)
MHDD4.2 floppy disk version
Number of downloads: 88
2005-8-14 14:43
MHDD v4.5.rar (124 KB) click on the "quick download" and click "quick download MHDD v4.5.rar" (124 KB)
MHDD4.5 floppy disk version
Number of downloads: 205
2005-8-14 14:43
MHDD4.5.rar (124 KB) click on the "quick download" and click "quick download MHDD4.5.rar" (124 KB)
MHDD4.5 hard disk Edition
Number of downloads: 282
2005-8-14 14:43
Mhddver4.6.rar (117 KB) click on the "quick download" and click "quick download mhddver4.6.rar" (117 KB)
MHDD4.6 hard disk Edition
Number of downloads: 875
2005-8-14 14:43
MHDD command detailed Chinese hard disk base network
EXIT (hotkey Alt+X): quit to DOS.
ID: hard disk detection, including hard disk capacity, head number, sector number, SN serial number, Firmware firmware version, LBA, DMA, numerical support level whether to support the HPA, support AAM, SMART level and switch mode switch state, state security...... Et al.).
INIT: hard disk initialization, including Device, Reset (hard disk reset), Setting, Drive, Parameters (setting the hard disk parameters), Recalibrate (recalibration).
I (hotkey F2): execute both the ID command and the INIT command.
ERASE: quick delete function. Each delete unit is equal to 255 sectors (data recovery is invalid).
AERASE: Advanced delete function, you can delete the specified sector segment data by Sector (slower than ERASE, data recovery is also invalid),
Each unit of deletion is equal to 1 sectors.
HPA: hard disk capacity cutting capabilities reduce the capacity of hard disks and reduce BIOS detection capabilities, but software such as DM, capable of detecting hard disk drives independent of BIOS, still displays the original capacity of the hard disk.
NHPA: restore hard disk capacity to true capacity. China hard disk base network
RHPA: ignoring capacity clipping, showing the actual capacity of the hard disk.
CLS screen. China hard disk base network
PWD: add the USER password to the hard disk, up to 32 bits and no input, which means cancellation. The hard disk is locked completely unable to read or write, low price, etc. all read and write operation is invalid. If you add the password successfully, press the F2 button to see Security, followed by a red ON. Note that after setting the password, you must turn off the power before you start the password will work;
UNLOCK: Unlock the hard disk. First select 0 (USER), and then enter the password correctly. Note: Option 1 (Master) cannot unlock the password.
DISPWD: to remove the password, first select 0 (USER), and then enter the password correctly. You must unlock with the UNLOCK command before you can use DISPWD. Note that there is no way to unlock it except with the UNLOCK and DISPWD commands that can solve the password. And once the password is forgotten (or entered incorrectly), there is no way to unlock it. If the password is successful, press the F2 button to see Security, followed by a gray OFF. Note: Option 1 (Master) cannot unlock the password.
RPM: hard disk drive speed (very inaccurate, each measurement value is different).
TOF: to set up the image file for the specified sector segment
(max 2G).
FF: restores from image file (maximum 2G) to sector segment.
AAM: automatic noise management. You can use the AAM (Automatic Noise Management) command, "listen, get", to adjust the noise of the hard disk. After pressing the F2 button, if you have the word "AAM", it means that the hard disk supports noise control. Type the AAM command, will show the current hard disk noise level, and can immediately hear the noise of the hard disk read and write, should pay attention to the noise and performance of the hard disk is proportional to, more noise, higher performance, and vice versa. Enter the AAM command, press 0 keys can turn off the AAM function, you can press M noise to the minimum (lowest performance), press the P key can be adjusted to the maximum noise (the highest performance), press the + plus and minus - can be free to adjust the value of the hard disk noise (values range from 0 to 126), middle press L you can obtain noise and performance value (for some hard disk if you press the plus and minus - + is invalid, but do not want to let the noise level for the maximum or minimum, can press the L button to take the noise value in the middle), press the D button to close the AAM said, press the ENTER button to adjust the end said;
FDISK: quickly divide the hard disk into a zone in FAT32 format (actually only a MBR master boot record), and set it to activate, but you need to use FORMAT to format it completely.
SMART: displays the SMART parameter and can do all the relevant operations on the SMART. SMART ON can open the SMART function,
SMART OFF can turn off the SMART function, and SMART TEST can detect SMART.
PORT (hotkey Shift+F3): show the IDE port on the hard disk, can press the number corresponding to select the corresponding port of the hard disk, the mouth will be recorded in the /CFG directory of the MHDD.CFG file, 1 IDE1 port, 2 IDE1 port from 3 said, IDE2 said in 4, said from the IDE2. Next time before entering the MHDD after the opening became the default mouth, edit the MHDD.CFG file to change the value you can change the default MHDD port detection. If so, after entering the MHDD Disk Not Ready suggested by F2, shows the current hard disk is not connected to the last MHDD that the default port, then you can use the PORT command to select the hard disk (or change the MHDD.CFG file).
CX: quantum CX and LCT (including LA, LB, LC) series of hard disk seek test,
The stability of PHILPS TDA5247 chip test the two kinds of the hard disks (because of poor quality of the 5247 chips are most likely to frequently seek when exposed). Press the ESC button to stop. This command can also be used on other hard disks. It mainly improves the temperature of the hard disk motor drive chip by frequent random search, thus testing the stability of the hard disk under strong load.
WAIT: wait for the hard disk to take place.
STOP (hotkey Shift+F4): turn off the hard disk motor.
IBME: check the IBM hard disk defect table (P-LIST). A large amount of data is to be recorded at this point. The larger the defect table, the greater the generated file (in the IBMLST directory), and if the MHDD is present on the floppy disk, there may be insufficient space;
FUJLST: look at the Fujitsu hard disk defect table (P-LIST).
A large amount of data is to be recorded at this point. The larger the defect table, the greater the generated file (in the FUJLST directory), and if the MHDD is present on the floppy disk, there may be insufficient space;
MAKEBAD: to artificially create bad sectors within a specified area. Note that generated by it is difficult to repair bad sectors.
RANDOMBAD: randomly generated in various parts of the hard disk bad sectors, press the ESC button to stop production. Note that generated by it is difficult to repair bad sectors.
BATCH (hotkey F5): batch processing.
R (hotkey F3): hard disk reset. For example, after using the PWD password, you can use this command to make the password effective immediately.
FUCKFUJ, KILLFUJ, AKILLFUJ: are deliberately destroy Fujitsu hard disk commands, must be careful to use, otherwise the hard disk will be completely damaged, can not be repaired. All normal Fujitsu hard disk, in the use of FUCKFUJ command, only one or two seconds, it means that the destruction of success, restart,
and even the self-test action has disappeared, the motherboard can not detect, the hard disk completely scrapped.
China hard disk base network
SCAN (hotkey F4): the disk scan allows you to fix bad sectors in a specific pattern:
[Scan in: CHS/LBA]: scan in CHS or LBA mode. CHS is only valid for older hard drives under 500M.
[Starting CYL]: set the cylinder for the beginning of the scan. China hard disk base network
[Starting LBA]: sets the LBA value for the start scan. China hard disk base network
[Log: On/Off]: whether to write a log file. China hard disk base network
[Remap: On/Off] (re imaging): do you repair bad sectors?. China hard disk base network
[Ending CYL]: set the end of the scan cylinder China hard disk base network
[Ending LBA]: sets the LBA value of the terminating scan. China hard disk base network
[Timeout (SEC)]: setting timeout values from 1 to 200 with default values of 30. China hard disk base network
[Advanced LBA log] (advanced LBA log): this item is not supported. China hard disk base network
[Standby after scan]: after the scan is finished, the hard disk motor is turned off so that the SCAN can automatically cut off the power supply after the scan is finished, but the host is powered on (for no one's duty).
[Loop the test/repair]: to detect and repair cycle, mainly for repeatedly repairing refractory defects.
[Erase WAITs] (delete wait): This is mainly used for repairing bad sectors, and the repairing effect is more ideal than REMAP, especially for IBM hard disk bad sectors is the most effective, but should pay attention to be repaired where the data is to be destroyed (because each Erase WAITS delete unit is the 255 sector). The default time for Erase WAITS is 250 ms, and the value can be set from 10 to 10000. To set the default time, you can open the MHDD.CFG file under the /CFG directory,
Modify the corresponding item to change the Erase WAITS value. This value is mainly used to set the MHDD to determine the value of bad reading time (i.e. read a sector block if the read time reaches or exceeds the value that the block for bad sectors, and started to repair), under normal circumstances, do not need to change this value, otherwise it will affect the definition and effect of repair bad sectors.
China hard disk base network
The first row of the left part of the screen for the status register, the right part is the error register; in the middle of the first line of the screen (between BUSY and AMNF) have a blank area, if the hard disk is encrypted, which displays the PWD; if the hard disk is made by shear HPA, which displays HPA;
China hard disk base network
The left half of the second line of the screen is the physical parameter of the current hard disk, and the right half is the current scan position;
The lower right corner of the screen for the timer, Start start scanning time, Time said it had consumed time, End said it expected the end of time, the end will display Time Count, said the total cost for a long time;
China hard disk base network
In scanning, each block represents 255 sectors (in LBA mode) or 63 sectors (in CHS mode);
The scan process can be terminated by pressing the ESC key at any time;
China hard disk base network
Box from top to bottom in order to indicate from normal to abnormal, read and write speed from slow to slow. Normally, only the first and second gray boxes should appear, and the Chinese hard disk base network
China hard disk base network
If a light gray box (third squares) appears, then the reading time is more time-consuming;
China hard disk base network
If there is green and brown diamonds (third and fourth squares), represented here read abnormalities, but has not yet produced bad sectors;
China hard disk base network
If there is a red box (sixth, i.e. the last square), on behalf of the reading difficult, will produce bad sectors;
China hard disk base network
If there is a question mark? Said here, read errors, serious physical bad sectors, can not be repaired.
China hard disk base network
Note 1: read and write some extremely slow hard if you use MHDD F4 SCAN scan and open EraseWAITS can see, or evenly with a lot of W, or a lot of the riotous with colour box, the type of hard disk read and write is extremely slow, because a large number of disk sector defects caused by read and write each sector will take a long time together leads to the hard disk read and write speed slow.
China hard disk base network
Note 2: the old type hard disk (2, 3G) due to the low performance and slow speed, so the first few squares in F4 SCAN test, and second and third squares, even fourth squares (green box), this situation is due to the old hard disk read and write speed caused by. Not that the sector read and write exception.
China hard disk base network
Use the arrow keys on the scan can flexibly control the scanning process, much like the VCD player: up fast 2%; down 2% backward; look back 0.1% to 0.1% fast. Use arrow keys, the instability and bad sectors stubborn repeatedly scan and repair section;。