Can't delete any files on my filled up ZFS pool

[Thomas Vogt]

Hello Julian

Julian H. Stacey wrote:
> Thomas Vogt wrote:
>> Hello
>>
>> I need help. My ZFS sytem is filled up. I can't delete any files.
>>
>> root at bert:/tank# rm input.wav
>> rm: input.wav: No space left on device
> 
> I know nothing about ZFS :-)  (Well nearly, just reading the ZFS pain
> on @freebsd lists is enough to scare me off for now ;-) ) But if I
> was stuck on this, with no ZFS experts to quickly ask, I'd guess & try:
> 
> 	It needs more space for another Inode, or extended directory
> 	entry, cos its maybe going to create another inode in a
> 	backup/ deleted entity first, so either:
> 
> 	A)
> 	Maybe su ; rm input.wav	# if the concept of extra space still exists
> 				# per "tunefs -m" for root as per UFS etc.

I filled it as root. So it does not work

> 	Or B)
> 	Perhaps more likely:
> 		truncate existing inode to create some space
> 		before deleting it:
> 			cat /dev/null > input.wav ; rm input.wav

Nice. B) works fine. Thank you.


> 	Presumably if you filled it as root, B might still empty it.
> 
> There will doubtless be better ZFS answers, but could be interesting
> to hear if either of above could work.

I hope there will be a "ZFS" answer :)

Regards,
Thomas