How we can find the ratio of inodes to blocks? How can we change that ratio?
2 Answers
To get the ratio, it's going to depend on the filesystem.
On ext2/3/4 then
tune2fs -l /dev/special
will display all the paramaters. You'll have to calculate the ratio yourself.
There isn't any way to change the ratio on an existing ext2/3/4 filesystem you have to create a new filesystem.
On my Ubuntu system:
sudo tune2fs -l /dev/sda1
Will get you this sort of output:
Blocks per group: 32768
Fragments per group: 32768
Inodes per group: 8192
Inode blocks per group: 512
...
Inode size: 256
This assumes you're using an ext2, ext3, or ext4 filesystem. The disk shown is using ext4.