| Important operating systems like Windows NT, | | | | with USN journal to keep track of all the |
| 2000 and XP is based on NTFS file system. The | | | | changes done on the volume. |
| purpose for developing file systems is to | | | | |
| administer files, folders and to manage all | | | | 4. By using the facility provided by NTFS |
| that information needed to access the files | | | | 5.0, administrators of the computer can limit |
| from local or remote computers. Two versions | | | | storage capacity of a specific volume. |
| of NTFS have been released up till now- NTFS | | | | |
| 4.0 and NTFS 5.0. First version NTFS 4.0 | | | | Structure of NTFS File System |
| supports Windows NT while NTFS 5.0 with some | | | | |
| new exciting features supports windows 2000 | | | | NTFS disk is partitioned into two parts, 12% |
| and windows XP. Most common features which | | | | of it constitutes by MFT that doesn't make to |
| are found in both of them are listed below | | | | save any thing and remaining 88% is used for |
| | | | the purpose of files storage. |
| 1. It provides support to Mac files | | | | |
| | | | What is MFT? |
| 2. It helps in compression of files which are | | | | |
| readable and writeable while the process is | | | | Every component of the system and information |
| in progress. | | | | related to operating system is considered to |
| | | | be a file. The most important file of NTFS |
| 3. NTFS file system can recover the files | | | | is MFT (Master File Table) containing all the |
| lost due to power failure or system | | | | necessary files of system. This table is |
| breakdown. | | | | divided into some fixed size of records of 1 |
| | | | byte. These all records refer to some files |
| Some of the salient features of NTFS 5.0 are | | | | and first 16 files are directly linked with |
| as under: | | | | operating system and only operating system |
| | | | can access those files. |
| 1. It can encrypt or decrypt the data during | | | | |
| reading and writing any file from hard disk | | | | The first 16 files are named metafiles which |
| automatically. | | | | are basically the system files. These files |
| | | | are basically meant for some basic functions |
| 2. NTFS 5.0 lets you write files of maximum | | | | of operating system. Such metafiles exist in |
| length but only occupies the required and | | | | the root directory of NTFS and can only be |
| necessary space. | | | | searched by appending "$" sign in start of |
| | | | the file. For example if you want to locate |
| 3. This version of NTFS file system is given | | | | log file you have to write $LogFile. |