[ale] 1/3 full disk, but it is full?

Mel Burslan mel.burslan at s1.com
Wed Jul 11 08:51:54 EDT 2001


In the light of this message, one thing comes to mind: How fragmented
your LARGE files are. Because, if my old knowledge of inodes and linked
list structures are still serving me good, you are using one inode per
fragment. And by my gut feeling, large, but really large files, are the
files accessed and written over many many times by different
users/processes, which can get badly fragmented. If this is the case,
you may run out of inodes even with few large files. Just a thought, not
even worth 2 cents ;-)

Wandered Inn wrote:
> 
> hirsch at zapmedia.com wrote:
> >
> > Wandered Inn writes:
> >  > hirsch at zapmedia.com wrote:
> >  > >
> >  > > I wouldn't expect to be out of inodes.  Most of my files are over 3
> >  > > megabytes and I thought the out of inode problem is usually caused by
> >  > > small files.
> >  >
> >  > Not small files, lots of files.  One inode for each file entry in the
> >  > file system.
> >
> > Yes, but there are usually enough inodes for a reasonable number of
> > files.  If your files are big then you can't run out of inodes.  Only
> > with small files can you run out.  Or so I thought.
> 
> The point is, you're allocated so many inodes for the file system.  The
> size of the files is not an issue, unless of course you use up all your
> disk space.  You run out of inodes when you have too many files.  Inode
> to file relationship has nothing to do with the file size.  You can run
> out of inodes even with large files, depending on how many inodes you
> allocated for the file system.
> 
> mkfs.ext2 -N NUMBER_OF_INODES
> 
> Now if you set NUMBER_OF_INODES too small, it doesn't matter how large
> your files are, you'll run out of inodes, when you run out of inodes.
> 
> Most folks I'm sure use the default number, which I do not know what
> that is.
> 
> >
> > Later,
> >
> > Michael
> 
> --
> Until later: Geoffrey           esoteric at denali.atlnet.com
> 
> "Great spirits have always found violent opposition from mediocre minds.
> The latter cannot understand it when a man does not thoughtlessly submit
> to hereditary prejudices but honestly and courageously uses his
> intelligence." - Albert Einstein
> --
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