Why so big?

[Karl Larsen]

Mike Bird wrote:
> On Sun May 18 2008 11:23:02 Karl Larsen wrote:
>   
>>     Well Mike the system does fsck every so often and there is no -f in
>> fsck. So I really think what we have is a tiny orphan inode that happens
>> when you bring the ext3 file system down wrong, I do not see this making
>> the change from 6 to 2 Gb.
>>     
>
> Karl,
>
> There may not be a -f in "man fsck" but the fsck command supports -f
> as you could very easily have verified before posting false information
> to this list.
>
>    # umount /dev/md0
>    # fsck /dev/md0
>    fsck 1.40.8 (13-Mar-2008)
>    e2fsck 1.40.8 (13-Mar-2008)
>    /boot: clean, 48/48192 files, 43504/96256 blocks
>    # fsck -f /dev/md0
>    fsck 1.40.8 (13-Mar-2008)
>    e2fsck 1.40.8 (13-Mar-2008)
>    Pass 1: Checking inodes, blocks, and sizes
>    Pass 2: Checking directory structure
>    Pass 3: Checking directory connectivity
>    Pass 4: Checking reference counts
>    Pass 5: Checking group summary information
>    /boot: 48/48192 files (20.8% non-contiguous), 43504/96256 blocks
>    # mount /dev/md0
>    #
>
> A few options are deliberately omitted from man pages so that newbies
> don't play with dangerous features unless recommended.
>
> An inode is small but data blocks are attached to inodes.  Some data
> blocks may be directories, containing links to more orphaned inodes
> and more data blocks.  It's very easy to get 3GB of lost space.  At
> the moment you don't even know how many orphaned inodes you have,
> as dumpe2fs only tells you the first.
>
> There is at least one other possible place where the lost space could
> be, but please run fsck or else stop wasting people's time on this list.
>
> --Mike Bird
>
>   
    Mike I did the stupid thing. I read the paper man fsck and there is 
no -f explained there. That is why I was not sure you were right. I will 
run fsck and see what effect it has.

Karl


-- 

	Karl F. Larsen, AKA K5DI
	Linux User
	#450462   http://counter.li.org.
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