Comando para desanexar uma unidade lógica

[Nicolas Closs]

Tenho uma VM com 2 discos, quero ao fazer backup dela só um disco seja feito o backup, o outro não.

Qual linha de comando uso para DESANEXAR o disco após desligar ela e após o backup ser realizado, o comando para ANEXAR o disco novamente e então ligá-la?

[Tobias Kreidl]

You can use "xe vdi-export uuid=(UUID of the one disk)" . This can be done without shutting down the VM or detaching the disk.

 

-=Tobias

[Nicolas Closs]

Ele resulta isso:

[root@xenserver3 ~]# xe vdi-export uuid=f95d1b16-f16a-4309-85db-b6925b22a8ce
Required parameter not found: filename
For usage run: 'xe help'

 

 

Eu quero apenas DESANEXAR o disco da VM.

Assim como faço pelo XenCenter através do botão DETACH na aba Storage na VM.

[Alan Lantz]

Pretty sure you are looking for vbd-unplug for detaching a disk and vbd-plug for reattaching.

 

--Alan--

 

[Tobias Kreidl]

Oh, sorry, you need to supply a path and file name where the export will be written:

 

xe vdi-export uuid=f95d1b16-f16a-4309-85db-b6925b22a8ce filename=/mnt/myremotestorageserver/myVDI.vdi

 

assuming you have a remote server's storage mounted under the /mnt partition on the XenServer host.

 

You could, as Alan says, unplug any disk(s) you do not want exported, export with the "xe vm-export ..." command, and re-attach the other disk(s) afterwards,

but note that this may disrupt running your VM, depending on which disk you detach (such as the operating system VDI !!!).

 

-=Tobias

[Nicolas Closs]

Agora resultou isso:

 

[root@xenserver3 ~]# xe vbd-unplug uuid=e0c8accb-a9a6-85bc-69cc-300dfbfb1ac8
You attempted an operation on a VM that was not in an appropriate power state at the time; for example, you attempted to start a VM that was already running.  The parameters returned are the VM's handle, and the expected and actual VM state at the time of the call.
vm: b69ba0d6-650e-3b77-82de-09b1bccb6f29 (TESTE)
expected: running
actual: halted

 

Gente, eu apenas gostaria via linha de comando fazer o mesmo processo que é feito através da imagem de exemplo:

 

[Tobias Kreidl]

If it thinks it's still running, you'll need to forece its power state to be off before you can shut it down and do an unplug.

Try running:

 

xe vm-reset-powerstate uuid=(UUID-of-VM)

 

to see if that helps. Then try shutting down the VM, if you need to, before trying the unplug operation.

 

-=Tobias

[Nicolas Closs]

A VM já está desligada, executei o comando acima mesmo assim e deu certo, mas continuo a ter o mesmo resultado quando executo xe vbd-unplug uuid.

 

[Nicolas Closs]

Algum retorno?