Linux filsystem og forbrug
Lille liste lavet på baggrund af server med mange phpsessions der løb tør for inodes med 100gb fri plads.
Contents
Ext4
16384 bytes-per-inode (default)
[root@inodetest ~]# mkfs.ext4 /dev/vdb
[root@inodetest ~]# df -i /mnt/test/ Filesystem Inodes IUsed IFree IUse% Mounted on /dev/vdb 655360 11 655349 1% /mnt/test
[root@inodetest ~]# df -h /mnt/test/ Filesystem Size Used Avail Use% Mounted on /dev/vdb 9.8G 37M 9.3G 1% /mnt/test
8192 bytes-per-inode
[root@inodetest ~]# mkfs.ext4 -i 8192 /dev/vdb
[root@inodetest ~]# df -i /mnt/test/ Filesystem Inodes IUsed IFree IUse% Mounted on /dev/vdb 1310720 11 1310709 1% /mnt/test
[root@inodetest ~]# df -h /mnt/test/ Filesystem Size Used Avail Use% Mounted on /dev/vdb 9.7G 37M 9.1G 1% /mnt/test
1024 bytes-per-inode
[root@inodetest ~]# mkfs.ext4 -i 1024 /dev/vdb
[root@inodetest ~]# df -i /mnt/test/ Filesystem Inodes IUsed IFree IUse% Mounted on /dev/vdb 10485760 11 10485749 1% /mnt/test
[root@inodetest ~]# df -h /mnt/test/ Filesystem Size Used Avail Use% Mounted on /dev/vdb 7.5G 49M 6.9G 1% /mnt/test
XFS default
[root@inodetest ~]# mkfs.xfs /dev/vdb
[root@inodetest ~]# df -i /mnt/test/ Filesystem Inodes IUsed IFree IUse% Mounted on /dev/vdb 5242880 3 5242877 1% /mnt/test
[root@inodetest ~]# df -h /mnt/test/ Filesystem Size Used Avail Use% Mounted on /dev/vdb 10G 104M 9.9G 2% /mnt/test
BRTFS
root@inodetest:~# mkfs.btrfs -f /dev/vdb
root@inodetest:~# df -i /mnt/test/ Filesystem Inodes IUsed IFree IUse% Mounted on /dev/vdb 0 0 0 - /mnt/test
root@inodetest:~# df -h /mnt/test/ Filesystem Size Used Avail Use% Mounted on /dev/vdb 10G 17M 8.0G 1% /mnt/test
- Dynamic inode allocation [1]
ReiserFS
root@inodetest:~# mkfs.reiserfs /dev/vdb
root@inodetest:~# df -i /mnt/test/ Filesystem Inodes IUsed IFree IUse% Mounted on /dev/vdb 0 0 0 - /mnt/test
root@inodetest:~# df -h /mnt/test/ Filesystem Size Used Avail Use% Mounted on /dev/vdb 10G 33M 10G 1% /mnt/test
- Kan ikke direkte finde noget om inodes for ReiserFS : [2]
