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File system type

藏色散人

Jun 05, 2019 am 10:04 AM

Linux

1. Linux: There are dozens of file system types: ext2, ext3, ext4, xfs , brtfs, zfs (man 5 fs can get an introduction to all file systems)

Different file systems use different methods to manage disk space, each with its own advantages and disadvantages; the file system is specific to the partition, so formatting Targeted at partitions, partition formatting refers to the process of registering and indexing partition space using specified file system types and establishing corresponding management tables.

ext2 has extremely fast speed and minimal CPU usage, and can be used for hard disks and mobile storage devices

ext3 adds log function and can be traced back

ext4 Log style The file system supports 1EB (1024*1024TB), with a maximum single file of 16TB. It supports continuous writing to reduce file fragmentation. The default file system of rhel6

xfs can manage a 500T hard drive. rhel7 default file system

brtfs file system is optimized for solid state disks,

zfs update?

Note: EXT (Extended file system) is an extended file system and extended file system. ext1 was released in April 1992 and was the first file system made for the Linux core.

Format command:

mkfs -t <文件系统类型> <分区设备文件名>
mkfs.xfs /dev/sdb1

man 5 fs can obtain a brief introduction to all file systems

Maximum supported files and other information?

windows

FAT16: The disk partition format used by MS-DOS and win95, using a 16-bit file allocation table, only supports 2GB Disk partition, the maximum single file is 2GB, and the disk utilization is low

FAT32: (i.e. Vfat) uses a 32-bit file allocation table, supports a maximum partition of 128GB, a maximum file of 4GB

NTFS: supported The maximum partition is 2TB and the maximum file is 2TB. The security and stability are very good and file fragmentation is not prone to occur.

Others

RAMFS: Memory File System

ISO 9660: Optical Disc

NFS: Network File System

SMBAFS/CIFS: Network file system that supports Samba protocol

Linux swap: swap partition to provide virtual memory.

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