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Centos7 default file system, why should EXT family to give up?
EXT most extensive family support:
But create a file system (format) slow!
But the repair slow!
But the file system storage capacity is limited!
xfs is also a journaling file system:
High capacity, large memory support
High performance, create / repair the file system quickly
inode and block all need to use the system only generates dynamic configuration
XFS file system
• data area (data section)
Ext data area just before the family learned as comprising inode / data block / superblock and other information, are placed in the block.
• File system log area (log section)
• Real-time Operating Area (realtime section)
Repair the XFS file system xfs_repair
[root@tianyun ~]# xfs_repair /dev/vda1
xfs_repair: /dev/vda1 contains a mounted filesystem
xfs_repair: /dev/vda1 contains a mounted and writable filesystem
fatal error -- couldn't initialize XFS library
[root@tianyun ~]# umount /dev/vda1
[root@tianyun ~]# xfs_repair /dev/vda1
Phase 1 - find and verify superblock...
Phase 2 - using internal log
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zero log...
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scan filesystem freespace and inode maps...
- found root inode chunk