[ovirt-users] VM has been paused due to NO STORAGE SPACE ERROR ?!?!?!?!

[Enrico Becchetti]

Il 16/03/2018 15:48, Alex Crow ha scritto:
> On 16/03/18 13:46, Nicolas Ecarnot wrote:
>> Le 16/03/2018 à 13:28, Karli Sjöberg a écrit :
>>>
>>>
>>> Den 16 mars 2018 12:26 skrev Enrico Becchetti 
>>> <enrico.becchetti at pg.infn.it>:
>>>
>>>        Dear All,
>>>     Does someone had seen that error ?
>>
>> Yes, I experienced it dozens of times on 3.6 (my 4.2 setup has 
>> insufficient workload to trigger such event).
>> And in every case, there was no actual lack of space.
>>
>>>     Enrico Becchetti Servizio di Calcolo e Reti
>>> I think I remember something to do with thin provisioning and not 
>>> being able to grow fast enough, so out of space. Are the VM's disk 
>>> thick or thin?
>>
>> All our storage domains are thin-prov. and served by iSCSI 
>> (Equallogic PS6xxx and 4xxx).
>>
>> Enrico, do you know if a bug has been filed about this?
>>
> Did the VM remain paused? In my experience the VM just gets 
> temporarily paused while the storage is expanded. RH confirmed to me 
> in a ticket that this is expected behaviour.
>
> If you need high write performance your VM disks should always be 
> preallocated. We only use Thin Provision for VMs where we know that 
> disk writes are low (eg network services, CPU-bound apps, etc).
>
Thanks a lot !!!
Best Regards
Enrico

> Alex
> -- 
> This message is intended only for the addressee and may contain
> confidential information. Unless you are that person, you may not
> disclose its contents or use it in any way and are requested to delete
> the message along with any attachments and notify us immediately.
> This email is not intended to, nor should it be taken to, constitute 
> advice.
> The information provided is correct to our knowledge & belief and must 
> not
> be used as a substitute for obtaining tax, regulatory, investment, 
> legal or
> any other appropriate advice.
>
> "Transact" is operated by Integrated Financial Arrangements Ltd.
> 29 Clement's Lane, London EC4N 7AE. Tel: (020) 7608 4900 Fax: (020) 
> 7608 5300.
> (Registered office: as above; Registered in England and Wales under
> number: 3727592). Authorised and regulated by the Financial Conduct
> Authority (entered on the Financial Services Register; no. 190856).
> _______________________________________________
> Users mailing list
> Users at ovirt.org
> http://lists.ovirt.org/mailman/listinfo/users


-- 
_______________________________________________________________________

Enrico Becchetti                    Servizio di Calcolo e Reti

Istituto Nazionale di Fisica Nucleare - Sezione di Perugia
Via Pascoli,c/o Dipartimento di Fisica  06123 Perugia (ITALY)
Phone:+39 075 5852777             Mail: Enrico.Becchetti<at>pg.infn.it
______________________________________________________________________