[pve-devel] Storage migration: online design solution

[Alexandre DERUMIER]

>>And another observation: For LVM, or maybe any block device, the device
>>needs to be created before executing drive-mirror
Yes, it's better to create ourself the volume. (same for qemu-img convert).
Because Qemu can't create volume for all storages types (rbd,sheepdog, other storage api)


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

De: "Michael Rasmussen" <mir at datanom.net> 
À: pve-devel at pve.proxmox.com 
Envoyé: Mercredi 9 Janvier 2013 22:20:08 
Objet: Re: [pve-devel] Storage migration: online design solution 

On Wed, 9 Jan 2013 22:12:47 +0100 
Michael Rasmussen <mir at datanom.net> wrote: 

> Found out that it has to be a URI: /dev/pve-storage2_vg/vm-102-disk-1 
> works:-) 
> 
And another observation: For LVM, or maybe any block device, the device 
needs to be created before executing drive-mirror 

# drive_mirror -f drive-virtio2 /dev/pve-storage2_vg/vm-102-disk-2 
Could not open '/dev/pve-storage2_vg/vm-102-disk-2' 

lvcreate -L 2G --name vm-102-disk-2 pve-storage2_vg 
Logical volume "vm-102-disk-2" created 

# drive_mirror -n -f drive-virtio2 /dev/pve-storage2_vg/vm-102-disk-2 

# info block-jobs 
Type mirror, device drive-virtio2: Completed 165675008 of 2147483648 
bytes, speed limit 0 bytes/s 

-- 
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Michael Rasmussen 

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