[PVE-User] QEMU failing to start from the web with ZFS Over iSCSI

[Dominik Csapak]

Hi,

On 10/6/20 6:23 PM, Daniel Berteaud wrote:
> ----- Le 6 Oct 20, à 17:59, Daniel Berteaud daniel at firewall-services.com a écrit :
> 
>> Hi there.
>>
>> I've been migrating a few VM from an NFS storage to a ZFS over iSCSI one (using
>> LIO backend) on a fully updated PVE6 cluster. Everything went fine while
>> live-moving VM disks. There's also no problem starting VM from the CLI, eg
>>
>> qm start 105
>>
>> But, starting the same VM from the web interface fails with the unhelpful
>> message :
>>
>> TASK ERROR: start failed: QEMU exited with code -1
>>
>> Seems there're some more checks somewhere which are failing when running through
>> the web interface. How could I debug this ? I usually just start with qm or
>> manually the qemu command (using the qm showcmd output), but as both are
>> working here ...
>>
> 
> Some more info :
> 
>    * This cluster was using a ZFS over iSCSI storage a few months ago, without issue
>    * A VM with ZFS over iSCSI disk started with "qm start" can be migrated from the web interface (so, the start phase on the new node is not affected when done in a migration context)
>    * The problem goes away as soon as I replace the ZFS over iSCSI storage with a image on an NFS server (no other change)

is there anything else in the task log of the start? ( you can obtain 
that by dobuble clicking the task)

also maybe there are some hints in the pve log during that time?

basically 'qm start ID' does the same think as the API so
there should be no difference

can you post your vm config? (qm config ID)

Regards,
Dominik