No of inodes equals no of data blocks in a linux file sysem?

Marty21 · 01-09-2009, 04:18 PM

Hi guys,
In a linux file system,do the number of inodes and the number of data blocks same?
Thankx

paulsm4 · 01-09-2009, 04:22 PM

No, they are not the same.

Here is one link for more info, you can Google for other links with "inode" "Linux filesystem" "Unix filesystem" or similar keywords:

http://www.linfo.org/inode.html

Here is a kernel-level description:
http://www.cse.unsw.edu.au/~neilb/os...ary/vfs-7.html

jailbait · 01-09-2009, 04:22 PM

No. There are a lot more data blocks than inodes. A likely ratio is about 20 to 1.

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Steve Stites

rweaver · 01-09-2009, 04:47 PM

Quote:

Originally Posted by Marty21

Hi guys,
In a linux file system,do the number of inodes and the number of data blocks same?
Thankx

You can use debugfs, ext3grep, and several other tools in tct/tsk to see a lot of the basic stats about your file system (block size, inode size, etc.)

sundialsvcs · 01-10-2009, 07:41 PM

In Linux, an "inode" is basically the representation of "a single file." The name is historical. Directories, in turn, associate names with those inodes.