Cloud computing tutorial learning course syllabus courseware: FAT file system

Microsoft Dos / Windows family of operating systems using a total of six different file systems (including Winfs that will be used in the next version of windows). They are: FAt12, FAT16, FAT32, NTFS, NTFS5.0 and WINFS. Below us one to make a presentation on their relevant characteristics and rules. Which FAt12, FAT16, FAT32 file systems are Fat. It is short for File Allocation Table. The oldest file system FAT12:

This was accompanied by Dos birth of the "old" file system. It uses the file allocation table 12, and hence the name. And after all FAT system in such a way in the name. In DOS3.0 ago. But now, we still can find this file system: for floppy disk drives. Of course, other areas where we basically do not use this file system. Fat12 can manage disk capacity is 8M. In this time, no hard disk, the disk management capabilities that are very large.

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FAT file system

FTA file system is not inode, so no FAT file all of the block is read out at the outset. A block number of each block in the previous record,

If a file is written to the block fragmentation, the read speed is very slow. Defragmentation can be dispersed block the way to try to sort out together.

Create a file system vfat

[root@tianyun ~]# mkfs.vfat /dev/vda6

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