[pve-devel] vm stop tasks hanging

[Alexandre DERUMIER]

Hi, I miss this mail.

about filter, it's for limiting devices list where lvm volume exists.

without it, it's scanning all the devices in /dev/.
That's strange, there is no cache of lvm volume list...
(I have this behaviour with all lvm command: lvs, vgs, lvdisplay,....)

I have done some test,it's easy to implement when in storage.cfg we have "base" properties, with iscsi device defined.
But if we have "vgname" as properties, to find device, when need to scan, so chicken..egg....


So for now, I'll configure filter at hand in /etc/lvm/lvm.conf, it's not a problem for me.

I think we number of devices in /dev/ will reduce with iscsi 1target-1lun model, it'll be ok.




----- Mail original ----- 

De: "Dietmar Maurer" <dietmar at proxmox.com> 
À: "Alexandre DERUMIER" <aderumier at odiso.com> 
Cc: pve-devel at pve.proxmox.com 
Envoyé: Vendredi 20 Avril 2012 17:37:00 
Objet: RE: [pve-devel] vm stop tasks hanging 

> it's possible to filter at command line like this: 
> 
> (exemple for scanning /dev/sda only) 
> 
> /sbin/lvs --config 'devices { filter = [ "a|^/dev/sda$|", "r/.*/" ] }' --separator : 
> --noheadings --units b --unbuffered --nosuffix --options 
> vg_name,lv_name,lv_size,uuid,tags 
> 
> maybe can we pass device to lvm_lvs () ? 

I don't really understand why you want to do that. We want to 'deactivate' active devices, 
So all we need to do is testing if the device is active (-b /dev/${VG}/${NAME})? Maybe I miss something? 

- Dietmar 



-- 

-- 




	Alexandre D erumier 
Ingénieur Système 
Fixe : 03 20 68 88 90 
Fax : 03 20 68 90 81 
45 Bvd du Général Leclerc 59100 Roubaix - France 
12 rue Marivaux 75002 Paris - France