[pve-devel] FreeNAS plugin: Status

[Alexandre DERUMIER]

>>It is not the VM as such but more related to the scsi subsystem. The 
>>disk geometry is fixed at the time the LUN is attached to the system so 
>>the only way to change the geometry is to reload the LUN - reloading 
>>means in this context detach and attach again.

do you talk have about lun size on the host ? On the host, a simple iscsi rescan should be able to detect new size.

I'm sure to be able to do online resize with my nexenta - zfs iscsi plugin in the past.
First version of my plugin (2010-2012 don't remember) was using scsi on host.
But it was too painfull to maintain (mainly with multipath and cpu usage with a lot of luns), so I switch it to libisci.

But I remember to use qmp command to tell the vm the new size of disk (even if it was already resized on the host)



----- Mail original -----
De: "datanom.net" <mir at datanom.net>
À: "pve-devel" <pve-devel at pve.proxmox.com>
Envoyé: Jeudi 8 Juin 2017 16:35:26
Objet: Re: [pve-devel] FreeNAS plugin: Status

On Thu, 8 Jun 2017 16:00:50 +0200 (CEST) 
Alexandre DERUMIER <aderumier at odiso.com> wrote: 

> 
> it should work if you send qmp block_resize command to vm, 
> after resize the lun on the host. 
> 
It is not the VM as such but more related to the scsi subsystem. The 
disk geometry is fixed at the time the LUN is attached to the system so 
the only way to change the geometry is to reload the LUN - reloading 
means in this context detach and attach again. 

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