[one-users] Attaching second disk

Tue Jul 31 14:57:22 PDT 2012

Hi

Automatic device mapping, KVM and hot-plugging is a bit tricky. As you see
from your log the VM behaves as a physical host, hotplugging is only
supported for the SCSI bus.

Now, OpenNebula automatically compute target per bus. If your VM template
uses hd it will take hda for the first OS.  A hot-plugging operation
 (target=sd) may collide with the first OS disk...

Could you try to use DEV_PREFIX=sd for both the OS image and the attaching
volume (target=sd + DEV_PREFIX=sd in the Image template or in the DISK
attribute in the VM template).

Cheers

Ruben

On Mon, Jul 30, 2012 at 4:24 PM, Jan Benadik <jan.benadik at atos.net> wrote:

>  Hi all,
>
> I have one running VM with W2008R2 Server and second VM with Linux in
> OpenNebula 3.6.
>
> I am able to attach volatile disk to Windows VM, in /var/log/one/oned.log
> is:
> Fri Jul 27 12:11:37 2012 [VMM][D]: Message received: LOG I 65 mkimage:
> Making filesystem of 500M and type ntfs at
> myto:/var/lib/one/datastores/0/65/disk.2
> Fri Jul 27 12:11:37 2012 [VMM][D]: Message received: LOG I 65 ExitCode: 0
> Fri Jul 27 12:11:37 2012 [VMM][D]: Message received: LOG I 65 Successfully
> execute transfer manager driver operation: tm_attach.
> Fri Jul 27 12:11:38 2012 [VMM][D]: Message received: LOG I 65 ExitCode: 0
> Fri Jul 27 12:11:38 2012 [VMM][D]: Message received: LOG I 65 Successfully
> execute virtualization driver operation: attach_disk.
>
> I see that disk in sunstone interface (screenshot1.png) and inside of
> running Windows VM too (screenshot2.png).
> I'm able to do it with existing image too.
>
> BUT - If I try to do it the same way with Linux VM (volatile disk /
> existing image), it crashed without visible alert, in log there is:
> If TARGET="sd"
>
> Mon Jul 30 18:11:20 2012 [VMM][I]: clone: Cloning ../../1/2d952692bba90bdb69d4c9f655f20a03 in one:/var/lib/one/datastores/0/21/disk.2
> Mon Jul 30 18:11:20 2012 [VMM][I]: ExitCode: 0
> Mon Jul 30 18:11:20 2012 [VMM][I]: Successfully execute transfer manager driver operation: tm_attach.
> Mon Jul 30 18:11:20 2012 [VMM][I]: Command execution fail: /var/tmp/one/vmm/kvm/attach_disk one-21 /var/lib/one/datastores/0/21/disk.2 sda 0 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>  NEQVRBW0N
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> Mon Jul 30 18:11:20 2012 [VMM][I]: error: internal error No device with bus 'scsi' and target 'sda'Mon Jul 30 18:11:20 2012 [VMM][E]: Could not attach /var/lib/one/datastores/0/21/disk.2 (sda) to one-21
> Mon Jul 30 18:11:20 2012 [VMM][I]: ExitCode: 1
> Mon Jul 30 18:11:20 2012 [VMM][I]: Failed to execute virtualization driver operation: attach_disk.Mon Jul 30 18:11:20 2012 [VMM][E]: Error attaching new VM Disk: Could not attach /var/lib/one/datastores/0/21/disk.2 (sda) to one-21
> Mon Jul 30 18:11:29 2012 [VMM][I]: ExitCode: 0
> Mon Jul 30 18:11:29 2012 [VMM][D]: Monitor Information:
>
> If TARGET="hd"
>
> Mon Jul 30 18:13:53 2012 [VMM][I]: clone: Cloning ../../1/2d952692bba90bdb69d4c9f655f20a03 in one:/var/lib/one/datastores/0/21/disk.2
> Mon Jul 30 18:13:53 2012 [VMM][I]: ExitCode: 0
> Mon Jul 30 18:13:53 2012 [VMM][I]: Successfully execute transfer manager driver operation: tm_attach.
> Mon Jul 30 18:13:54 2012 [VMM][I]: Command execution fail: /var/tmp/one/vmm/kvm/attach_disk one-21 /var/lib/one/datastores/0/21/disk.2 hdb 1 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> 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
>  T4= 21 on
> eMon Jul 30 18:13:54 2012 [VMM][E]: attach_disk: Command "virsh --connect qemu:///system attach-device one-21 /var/lib/one/datastores/0/21/disk.2.attach" failed: error: Failed to attach device from /var/lib/one/datastores/0/21/disk.2.attach
> Mon Jul 30 18:13:54 2012 [VMM][I]: error: internal error No device with bus 'ide' and target 'hdb'Mon Jul 30 18:13:54 2012 [VMM][E]: Could not attach /var/lib/one/datastores/0/21/disk.2 (hdb) to one-21
> Mon Jul 30 18:13:54 2012 [VMM][I]: ExitCode: 1
> Mon Jul 30 18:13:54 2012 [VMM][I]: Failed to execute virtualization driver operation: attach_disk.Mon Jul 30 18:13:54 2012 [VMM][E]: Error attaching new VM Disk: Could not attach /var/lib/one/datastores/0/21/disk.2 (hdb) to one-21
>
> My typical question is - what I did wrong? :-)
>
> Jan
>
> --
>
> *Ján Beňadik*
>  Managed Services - Solution Design Architect
> +421 46 5151 332
> +421 903 691 634
> jan.benadik at atos.net <//jan.benadik at atos.net>
> Vinohradnícka 6, 971 01 Prievidza
> www.sk.atos.net
> __________________________________
>
>
>
> _______________________________________________
> Users mailing list
> Users at lists.opennebula.org
> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>
>

-- 
Ruben S. Montero, PhD
Project co-Lead and Chief Architect
OpenNebula - The Open Source Solution for Data Center Virtualization
www.OpenNebula.org | rsmontero at opennebula.org | @OpenNebula
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