Hack 68. Fine tune the partition using tune2fs

by Ramesh

Use the tune2fs –l /dev/sda1 to view the filesystem information as shown below.

# tune2fs -l /dev/sda1
 
tune2fs 1.35 (28-Feb-2004)
Filesystem volume name:   /home/database
Last mounted on:          
Filesystem UUID:          f1234556-e123-1234-abcd-bbbbaaaaae11
Filesystem magic number:  0xEF44
Filesystem revision #:    1 (dynamic)
Filesystem features:      resize_inode filetype sparse_super
Default mount options:    (none)
Filesystem state:         not clean
Errors behavior:          Continue
Filesystem OS type:       Linux
Inode count:              1094912
Block count:              140138994
Reserved block count:     0
Free blocks:              16848481
Free inodes:              1014969
First block:              0
Block size:               2048
Fragment size:            2048
Reserved GDT blocks:      512
Blocks per group:         16384
Fragments per group:      16384
Inodes per group:         128
Inode blocks per group:   8
Filesystem created:       Tue Jul  1 00:06:03 2008
Last mount time:          Thu Aug 21 05:58:25 2008
Last write time:          Fri Jan  2 15:40:36 2009
Mount count:              2
Maximum mount count:      20
Last checked:             Tue Jul  1 00:06:03 2008
Check interval:           15552000 (6 months)
Next check after:         Sat Dec 27 23:06:03 2008
Reserved blocks uid:      0 (user root)
Reserved blocks gid:      0 (group root)
First inode:              11
Inode size:               128
Default directory hash:   tea
Directory Hash Seed:      12345829-1236-4123-9aaa-ccccc123292b

You can also use the tune2fs to tune the ex2/ext3 filesystem parameter. For example, if you want to change the Filesystem volume name, you can do it as shown below.

# tune2fs -l /dev/sda1 | grep volume
Filesystem volume name:   /home/database
 
# tune2fs -L database-home /dev/emcpowera1
tune2fs 1.35 (28-Feb-2004)
 
# tune2fs -l /dev/sda1 | grep volume
Filesystem volume name:   database-home