[CentOS] How do I check the real size of a filesystem?

William L. Maltby CentOS4Bill at triad.rr.com
Fri Jul 4 15:02:15 UTC 2008


On Fri, 2008-07-04 at 15:29 +0100, Kevin Thorpe wrote:
> > > > Kevin Thorpe wrote:
> > > > > I'm having a spot of bother with a large (900GB) 
> > partition. fdisk 
> > > > > claims it's 900GB. I made an ext3 fs on it and df says it's
> > > only
> > > > > 94GB. Which is correct? Or did I do something wrong?
> 
> > > parted claims it's 879GB so the partition appears to be ok. Have I 
> > > managed to format a small filesystem on a large partition?
> > 
> > I suggest running e2fsck -n. See the man page. Then, think of 
> > the -m parameter. The default, IIRC, is 5%. On small drives 
> > of the past this was appropriate. Now, I make most of mine with 1%.
> > 
> > 900GB * .05 = appx. 45GB. There's your loss.
> 
> I'm not bothered about an odd 45GB, it's that df says it's only 94GB
> in total that worries me.

That was just an aside. The -n, IIRC would be the useful thing. There's
other things you can do to: "df -ih".

The point was that the -n will tell you what you want to know without
having to actually read the man page(s).

> <snip>

-- 
Bill




More information about the CentOS mailing list