The last time the 4g usb flash drive NTFS was converted to FAT32, the access speed was greatly reduced. Of course, there are a lot of files in it, which cannot be understood. After Google, I realized it. Many people may say that FAT32 has better compatibility and read/write speed, but NTFS has better security and access speed (note that access is not read/write). See the advantages of NTFS. Today, the multiple boot tools in the ntfs format of the u disk are successfully created using the old Mao Tao method. That is to say, the NTFS format can successfully create multiple startup tools.
Q: four advantages of NTFS
1. File Systems with error warnings
In the NTFS partition, the first 16 sectors are the Partition Boot sectors, where the Partition Boot sectors are saved. Code And then the master file table (MFT). However, if the disk sector where it is located is damaged, the NTFS file system intelligently switches the MFT to other sectors of the hard disk to ensure the normal use of the file system, that is, to ensure the normal operation of windows. The previous fat16 and FAT32 fat (File Allocation Table) can only be fixed behind the Partition Boot Sector. if the sector is damaged, the entire file system will be paralyzed.
However, this smart mobile MFT approach is of course not perfect. If an error occurs in the part pointing to MFT in the partition guide code, the NTFS file system will not know where to find MFT, in this case, an error message such as "the disk is not formatted" is reported. To avoid this problem, the partition guide code contains a Verification Section. Program Responsible for error detection.
2. File Reading speed is more efficient!
I'm afraid many people have heard that the NTFS file system has many new functions in terms of security, but do you know that NTFS is significantly faster than FAT32 in terms of file processing speed?
Readers who know a little about DOS must be familiar with various attributes of Files: Read-only, hidden, and system. In the NTFS file system, these attributes still exist, but they are quite different. Everything is an attribute, and even the file content is an attribute. The list of these attributes is not fixed and can be added at any time. That is why you can see more attributes in the NTFS partition.
The file attributes in the NTFS file system can be divided into two types: Resident attributes and resident attributes, which are directly stored in MFT, file names and related time information (such as the Creation Time and modification time) always belong to the resident attribute, while the resident attribute is stored outside the MFT, however, a complex index method is used for indication. If a file or folder is smaller than 1500 bytes (in fact, there are quite a few files or folders of this size in our computer), all their attributes, including the content, will be resident in MFT, MFT is loaded into the memory when Windows is started, so that when you view these files or folders, their contents are already in the cache, naturally, the access speed of files and folders is greatly improved.
Tips
Why is fat less efficient than NTFS?
The file allocation table of the FAT file system can only list the names of each file and the starting cluster. It does not indicate whether the file exists. You need to record the folder where the file is located to determine whether the file exists, the folder entry is included in the index of the file allocation table. Therefore, when accessing a file, you must first read the file allocation table to confirm that the file already exists, then read the file allocation table again to find the first cluster of the file, and then find all the storage clusters of the file through the chain search, you can only access the service after final confirmation.
3. Disk Self-repair function
NTFS uses a self-healing system to automatically detect and fix logical and physical errors on the hard disk. In the fat16 and FAT32 times, we need to use the Scandisk program to mark bad sectors on the disk. However, when an error is found, the data is often written in Bad Sectors, the loss has been caused.
The NTFS file system does not. During each read/write, it checks whether the sector is correct or not. NTFS reports this error when an error is detected during reading. When an error is found when a file is written to a disk, NTFS intelligently stores data in an intact location without any impact. In both cases, NTFS will mark the bad sector to prevent future use. In this mode, disk errors can be detected earlier to avoid catastrophic accidents.
Some people find that, after converting a disk to an NTFS file system, it is difficult to find a disk error using a disk scan program. After the previous introduction, do you know why?
4. "disaster prevention and relief" Event Log Function
In the NTFS file system, any operation can be considered as an "Event ". For example, copying a file from drive C to drive D is an event. The Event Log constantly monitors the entire operation. When it finds the complete file on the target disk-D, it records the next "completed" mark. If a power failure occurs during the replication process, the event log does not record "completed". NTFS can re-complete the event after a call. The purpose of event logs is not to recover losses, but to supervise all events, so that the system can always know which tasks have been completed and those tasks have not been completed, ensure that the system will not be disordered due to power outages and other emergencies, minimizing the damage.
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Q: Is there a performance discount for NTFs converted from fat?
A:
If the partition is converted from FAT32 to NTFS (the command is "Convert drive letter/Fs: NTFS "), not only can MFT be prone to disk fragmentation, but worse, disk fragmentation tools often cannot sort the MFT in each partition, seriously affecting system performance. Therefore, we recommend that you directly format the partition as an NTFS file system.
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Q: How can I change from fat to NTFS?
A:
open command line. Click Start> RUN> enter "cmd"> press Enter.
in the Command Prompt window, enter convert :/Fs: NTFS. For example, the convert D:/Fs: NTFS command will format the D Drive in NTFS format. You can use this command to convert a fat or FAT32 volume to NTFS format.
important: Once a drive or partition is converted to the NTFS format, it cannot be restored to the fat or FAT32 format. To return the fat or FAT32 format, you must reformat the drive or partition and delete all data including programs and personal files from the corresponding partition.
