[PVE-User] Export an image contained in ceph store

[PVE-User] Export an image contained in ceph store

[Gregor Burck]

Hi,

we want to export an image of an VM wich is contained in an ceph store  
to an external device.

How could I manage this? Where I could 'find' the image?

I want to copy it to an USB device.

It is possible to copy an specyfy Snapshot?

Thank you for replay.

Bye

Gregor

Re: [PVE-User] Export an image contained in ceph store

[Gregor Burck]

Hi,

I'm a little bit forward.

with 'rbd list cephpool' could I see the 'images', with rbd export  
there is the possybility to export it to a file.

But the syntax isn't clear to copy it to the local mounted USB disc.

Bye

Gregor

Re: [PVE-User] Export an image contained in ceph store

[Stefan Reiter]

On 11/03/2021 15:59, Gregor Burck wrote:
> Hi,
> 
> I'm a little bit forward.
> 
> with 'rbd list cephpool' could I see the 'images', with rbd export there 
> is the possybility to export it to a file.
> 
> But the syntax isn't clear to copy it to the local mounted USB disc.

'rbd export' gives you the raw data, you can just pipe that into where 
you want it? E.g. 'rbd export -p cephpool export vm-XXX-disk-Y - > 
/mnt/usbdisk/file.raw'

Or if you want to overwrite your entire usb disk with it:
'rbd export -p cephpool export vm-XXX-disk-Y - > /dev/sdX' (make 
*really* sure you got the right device ;)

You should be able access snapshots with the '@' syntax, i.e. 
'vm-xxx-disk-Y@snapname'.

Hope that helps,

~ Stefan

> 
> Bye
> 
> Gregor
> 

Re: [PVE-User] Export an image contained in ceph store

[Gregor Burck]

OK found it, not difficult:

rbd export cephpool/vm-xxx-disk-X export.img

Bye

Gregor

Re: [PVE-User] Export an image contained in ceph store

[Gregor Burck]

The next question:

I export the vm-XX-disk-0 and all snapshots to the external disk:

vm-XXX-disk-0
vm-XXX-state-SNAP1
vm-XXX-state-SNAP2
vm-XXX-state-SNAP3

The images are raw image? How could I exports anvdmk from the diffrent  
snapshots?

Bye

Gregor