Difference between revisions of "Linux filsystem og forbrug"

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(Filsystem inodes reseveration)
 
(ReiserFS)
 
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==Ext4==
 
==Ext4==
 
===16384 bytes-per-inode (default)===
 
===16384 bytes-per-inode (default)===
  [root@inodetest ~]# mkfs.ext4 /dev/vdb   (defaulter til -i 16384)
+
  [root@inodetest ~]# mkfs.ext4 /dev/vdb
  
 
  [root@inodetest ~]# df -i /mnt/test/
 
  [root@inodetest ~]# df -i /mnt/test/
Line 53: Line 53:
 
  /dev/vdb            0    0    0    - /mnt/test
 
  /dev/vdb            0    0    0    - /mnt/test
  
root@inodetest:~# df -h /mnt/test/
+
root@inodetest:~# df -h /mnt/test/
Filesystem      Size  Used Avail Use% Mounted on
+
Filesystem      Size  Used Avail Use% Mounted on
/dev/vdb        10G  17M  8.0G  1% /mnt/test
+
/dev/vdb        10G  17M  8.0G  1% /mnt/test
 +
 
 +
* Dynamic inode allocation [https://btrfs.wiki.kernel.org/index.php/Main_Page]
  
 
==ReiserFS==
 
==ReiserFS==
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  Filesystem      Size  Used Avail Use% Mounted on
 
  Filesystem      Size  Used Avail Use% Mounted on
 
  /dev/vdb        10G  33M  10G  1% /mnt/test
 
  /dev/vdb        10G  33M  10G  1% /mnt/test
 +
 +
* Kan ikke direkte finde noget om inodes for ReiserFS : [https://en.wikipedia.org/wiki/ReiserFS]

Latest revision as of 13:17, 3 August 2020

Lille liste lavet på baggrund af server med mange phpsessions der løb tør for inodes med 100gb fri plads.

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]