[Linux-cluster] gfs_tool df question

[Jonathan E Brassow]

On Jan 20, 2006, at 2:18 PM, Bowie Bailey wrote:

> David Teigland wrote:
>> On Fri, Jan 20, 2006 at 01:38:39PM -0500, Bowie Bailey wrote:
>>>>> Type        Total       Used      Free        use%
>>>>>
>>>>> ----------------------------------------------------
>>>>> inodes      2697580     2697580   0           100%
>>>>> metadata    104195      21410     82785       21%
>>>>> data        290040505   23167     290017338   0%
>>
>>> Now 180M is nowhere near 11G!  Am I reading something wrong?  Why
>>> am I getting different numbers?
>>
>> Add the space used by the inode blocks.  File/directory data is
>> stuffed into the inode block if it's under around 3500 bytes.
>
> Ah...THAT's the piece of information I was missing!  Now that you
> mention it, I remember reading about that somewhere.  I guess it just
> didn't click.
>
> Based on what I've gathered so far, that chart is showing inodes,
> metadata, and data as a number of blocks, right?  So to get disk usage,
> I add up the used inode, metadata, and data blocks and multiply by 
> block
> size (4K)?
>
> That seems to show me a 1.1TB total with 10.5GB used, which sounds 
> about
> right.
>

yes.

Also, to answer one of your earlier questions, metadata is file-system 
specific data (directories, indirect blocks, etc).

  brassow