Jonathan E Brassow wrote:
>
> On Jan 19, 2006, at 11:44 AM, Bowie Bailey wrote:
>
> > I am trying to understand the information provided by "gfs_tool df".
> >
> > When I run it on my system, I get this:
> >
> > Type Total Used Free use%
> >
> > -----------------------------------------------------------------------
> > - inodes 2697580 2697580 0 100%
> > metadata 104195 21410 82785 21%
> > data 290040505 23167 290017338 0%
> >
> > I figured out that the data row is reporting used and free space in
> > blocks and the inode row is self-explanatory, but what is
> > "metadata"? Do I need to be concerned that metadata is 21% used
> > while data hasn't even hit 1% yet?
>
> GFS will allocate more metadata blocks when it needs them. (Same
> thing with the inodes.)
Ok. That answers one question, although I'm still not quite sure what
metadata IS.
Now, if I'm reading the above information correctly, it's showing that
my data is taking up 23167 blocks which is about 90M and the metadata is
taking up another 90M or so. However, when I check the usage of the
filesystem with 'du', I get this:
# du -sh mailboxes
11G mailboxes
Now 180M is nowhere near 11G! Am I reading something wrong? Why am I
getting different numbers? I tend to think that the du is more
accurate as that is the amount of usage that I expected to see.
Now I'm really confused...
--
Bowie
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