df not reporting correct free space - hard link problems?

Tony Molloy tony.molloy at ul.ie
Fri Jan 18 09:32:31 UTC 2008


On Friday 18 January 2008 08:53:53 Neil Bird wrote:
>    On my (ext3, LVM) drive on which I perform backups, I went to copy a
> large directory and starting getting loads of out-of-space errors, even
> though 'df' reports plenty of room, even to non-root users.
>
>
> $ df -h /usr/backup
> Filesystem            Size  Used Avail Use% Mounted on
> /dev/mapper/sata0-backup
>                        464G  367G   88G  81% /usr/backup
>
> .. but:
>
> mv: cannot create regular file `blah': No space left on device
>
>
>    Now, I am using rsync to create daily+weekly backups on that drive, so
> there are wads of hard links to things several times over.  But 'df' should
> be able to cope with that, shouldn't it?
>
>    I ran a forced fsck on the drive, but that reported no problems.  Any
> ideas anyone?

Could be you're out of inodes on the filesystem. Try


/usr/lib/news/bin/inndf -i /usr/backup

This should give you a count of free inodes.

Tony
>
> --
> [neil at fnx ~]# rm -f .signature
> [neil at fnx ~]# ls -l .signature
> ls: .signature: No such file or directory
> [neil at fnx ~]# exit





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