Filesystem Structure
For this time I will explain about a system file structure
there are some that I will explain, among others, are:
starting from the first, which is FAT16
we start from the first FAT. What is FAT?
FAT File System that is used in Windows Operating System.
FAT's name comes from the use of tables that focus on areas where information is empty or may not be used. To limit the size of the table, the disk space allocated to files in hardware sector groups are adjacent, so-called developing cluster. When disk drive, the maximum number of clusters also increases and so does
bit number that identifies that the cluster has evolved. version
development of the FAT file system format named by the number of bits table
elements, are: FAT12, FAT16 and FAT32.
FAT16 is a file system that uses an allocation unit. Limits to achieve 16-bit. File System can accommodate a maximum allocation of 216 units or as many as 65 536. File System is the capacity of as much as 4 GB, which exceeds that of the previous version could only accommodate a maximum of 32 MB. The size used depends on the capacity FAT16 disk partition to be formatted. If the hard disk to be formatted 16 MB, then that will be used is FAT12. If more than 16 MB is used is FAT16.kabar news is FAT16 compatible in almost all operating systems, Windows, OS / 2, Linux and Unix. Do not like before, because there is also the disadvantage that has the capacity to keep the number of clusters in a partition, you could say the bigger hard drive, the larger the cluster size. Another weakness is that FAT16 does not support compression, encryption and access control
FAT32
As well as FAT16, FAT32 has a limit at the same allocation but FAT32 has a limit of up to 32-bit. File System can accommodate a maximum allocation of 232 units. Slightly different from FAT16, if more than 32 GB partition, then that will be used is the File System NTFS, it can be said to go up one level. FAT32 is the ability to accommodate the excess number of clusters larger than FAT16. FAT32 is more flexible than that. The main folders on FAT32 is a chain of normal group. So it can be placed anywhere on the drive and no longer limit the number of entries for the folder. And disadvantages of using File System This is a limitation of the Operating System that can recognize FAT32, FAT16 is contrary to that is compatible with various operating systems
NTFS
NTFS on first introduced in Windows NT and the file system that is very different compared to FAT technology. NTFS is a file system in the flyer that came by the Microsoft Windows family of operating systems. Also has a simple design but has a better ability. NTFS works on the principle btree and using Full Indexing. Because of that fragmentation can be reduced to a minimum. Then, each file on a NTFS has a checksum, which allows the file is repaired perfectly when times are troubled NTFS.
there are several advantages of NTFS, that is:
- Storage Efficiency
- Long File Names
- Unicode Names
- Data Compression
- Encryption
- Networking
- Storage Fault Tolerance
- Multiple Data Stream
EXT2
EXT2 stands for Second Extended File System. Designed as a file system that is extensible and powerful for use on the Linux operating system. EXT2 file system is the most widely used by Linux users. In the EXT2 file system, file data is stored as data blocks. This block of data has the same length, and although the length varies between EXT2 file system, a large block is determined when the file system is created with mk2fs. There are several advantages of such EXT2 able to organize the files in the system that created a big partition. EXT2 file system is able to read some files from the UNIX standard, such as regular files, directories, device special files and symbolic links. and many other advantages. Any definite advantages there are disadvantages, such as EXT2 Requires some blocks for root (super user).
EXT3
An increase from Ext2 Ext3 File System. Some improvements there, among others:
takes about 1 second to recover (depending on the speed of hardware). other than that we can do the migration or conversion of Ext 2 to Ext 3 without having to reformat the hard disk. In terms of data integrity We can choose the type and level of protection of data received. There are also journaling, journaling concept causes EXT3 EXT2 is much faster than the recovery of data due to the occurrence of side damage. On superiority over, Ext 3 also has shortcomings with the journaling feature, it requires more memory and slow down the operation of I/O.
there are some that I will explain, among others, are:
- FAT16
- FAT32
- NTFS
- EXT2
- EXT3
starting from the first, which is FAT16
FAT16
we start from the first FAT. What is FAT?
FAT File System that is used in Windows Operating System.
FAT's name comes from the use of tables that focus on areas where information is empty or may not be used. To limit the size of the table, the disk space allocated to files in hardware sector groups are adjacent, so-called developing cluster. When disk drive, the maximum number of clusters also increases and so does
bit number that identifies that the cluster has evolved. version
development of the FAT file system format named by the number of bits table
elements, are: FAT12, FAT16 and FAT32.
FAT16 is a file system that uses an allocation unit. Limits to achieve 16-bit. File System can accommodate a maximum allocation of 216 units or as many as 65 536. File System is the capacity of as much as 4 GB, which exceeds that of the previous version could only accommodate a maximum of 32 MB. The size used depends on the capacity FAT16 disk partition to be formatted. If the hard disk to be formatted 16 MB, then that will be used is FAT12. If more than 16 MB is used is FAT16.kabar news is FAT16 compatible in almost all operating systems, Windows, OS / 2, Linux and Unix. Do not like before, because there is also the disadvantage that has the capacity to keep the number of clusters in a partition, you could say the bigger hard drive, the larger the cluster size. Another weakness is that FAT16 does not support compression, encryption and access control
FAT32
As well as FAT16, FAT32 has a limit at the same allocation but FAT32 has a limit of up to 32-bit. File System can accommodate a maximum allocation of 232 units. Slightly different from FAT16, if more than 32 GB partition, then that will be used is the File System NTFS, it can be said to go up one level. FAT32 is the ability to accommodate the excess number of clusters larger than FAT16. FAT32 is more flexible than that. The main folders on FAT32 is a chain of normal group. So it can be placed anywhere on the drive and no longer limit the number of entries for the folder. And disadvantages of using File System This is a limitation of the Operating System that can recognize FAT32, FAT16 is contrary to that is compatible with various operating systems
NTFS on first introduced in Windows NT and the file system that is very different compared to FAT technology. NTFS is a file system in the flyer that came by the Microsoft Windows family of operating systems. Also has a simple design but has a better ability. NTFS works on the principle btree and using Full Indexing. Because of that fragmentation can be reduced to a minimum. Then, each file on a NTFS has a checksum, which allows the file is repaired perfectly when times are troubled NTFS.
there are several advantages of NTFS, that is:
- Storage Efficiency
- Long File Names
- Unicode Names
- Data Compression
- Encryption
- Networking
- Storage Fault Tolerance
- Multiple Data Stream
EXT2
EXT2 stands for Second Extended File System. Designed as a file system that is extensible and powerful for use on the Linux operating system. EXT2 file system is the most widely used by Linux users. In the EXT2 file system, file data is stored as data blocks. This block of data has the same length, and although the length varies between EXT2 file system, a large block is determined when the file system is created with mk2fs. There are several advantages of such EXT2 able to organize the files in the system that created a big partition. EXT2 file system is able to read some files from the UNIX standard, such as regular files, directories, device special files and symbolic links. and many other advantages. Any definite advantages there are disadvantages, such as EXT2 Requires some blocks for root (super user).
EXT3
An increase from Ext2 Ext3 File System. Some improvements there, among others:
takes about 1 second to recover (depending on the speed of hardware). other than that we can do the migration or conversion of Ext 2 to Ext 3 without having to reformat the hard disk. In terms of data integrity We can choose the type and level of protection of data received. There are also journaling, journaling concept causes EXT3 EXT2 is much faster than the recovery of data due to the occurrence of side damage. On superiority over, Ext 3 also has shortcomings with the journaling feature, it requires more memory and slow down the operation of I/O.
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