[pve-devel] PVE::Storage::volume_has_feature

[Dietmar Maurer]

See my example ('copy' qcow2 snapshot while VM is running).

I thought it is dangerous to access a qcow2 snapshot while the file is in use?

> -----Original Message-----
> From: Alexandre DERUMIER [mailto:aderumier at odiso.com]
> Sent: Montag, 06. Mai 2013 06:41
> To: Dietmar Maurer
> Cc: pve-devel at pve.proxmox.com
> Subject: Re: PVE::Storage::volume_has_feature
> 
> Yes, Currently I don't use use it, because I think we can do snapshots,full clone,
> linked cloned online or offline for each storage.
> 
> Do you see a storage with a feature available offline and not online by example
> ?
> 
> ----- Mail original -----
> 
> De: "Dietmar Maurer" <dietmar at proxmox.com>
> À: "Alexandre DERUMIER (aderumier at odiso.com)" <aderumier at odiso.com>
> apsho
> Cc: pve-devel at pve.proxmox.com
> Envoyé: Lundi 6 Mai 2013 06:24:05
> Objet: PVE::Storage::volume_has_feature
> 
> That function seems to ignore the 'running'parameter, for example:
> 
> --------test code------
> #!/usr/bin/perl -w
> 
> use strict;
> use PVE::Storage;
> 
> my $volid = "local:200/vm-200-disk-1.qcow2"; my $snapname = "firstboot"; my
> $runnung = 1;
> 
> my $storecfg = PVE::Storage::config();
> 
> die "got unexpected result" if PVE::Storage::volume_has_feature($storecfg,
> 'copy', $volid, $snapname, 1);;
> 
> ----- end test code---------
> 
> how can we fix that?