df not reporting correct free space - hard link problems?

[Martin Marques]

Tony Molloy escribió:
> 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.

What's inndf? I don't have it on my system.