[one-users] iscsi target as a guest disk

[Prakhar Srivastava]

Hi,
It appears that you are using the tm_ssh transfer drivers. Use tm_lvm
transfer manager drivers instead.

Prakhar

On Thu, Dec 15, 2011 at 2:01 PM, Tengvall, Ilkka (NSN - FI Espoo) <
ilkka.tengvall at nsn.com> wrote:

> Hi,
>
> I'm writing related to issue:
>
> http://dev.opennebula.org/issues/1025
>
> Ruben, thanks for answer, you commented there that iscsi could be used
> as a disk:
>
> "you should be able to use iSCSI block devices with
> DISK=[TYPE=block,SOURCE=<path_to_dev>....]."
>
> I tried to follow you instruction, I don't see it working. What am I
> missing, since the oned tries to cp the iscsi image, instead as pass it
> to guest as disk:
>
> --------------------------------
> $ cat
> iscsi-vm.txt
>
> NAME=f16-min-iscsi
> USER=oneadmin
> GROUP=oneadmin
> PUBLIC=No
>
> DISK=[
>  BUS=virtio,
>  TYPE=block,
>
>
> SOURCE=/dev/disk/by-path/ip-192.168.117.1:3260-iscsi-iqn.2009-02.net.nsn-net:whipper.f16-min-lun-0
> ]
> GRAPHICS=[
>  KEYMAP=fi,
>  TYPE=vnc ]
> INPUT=[
>  BUS=usb,
>  TYPE=mouse ]
> MEMORY=512
> NIC=[
>  NETWORK_ID=1,
>  WHITE_PORTS_TCP=22 ]
> OS=[
>  ARCH=x86_64,
>  BOOT=hd ]
> RAW=[
>  TYPE=kvm ]
> VCPU=1
> --------------------------------
>
> Creating the machine using the disk:
>
> --------------------------------
> $ onevm create iscsi-vm.txt
> ID: 10
> --------------------------------
>
> and after it fails I see from the logs that it tried to copy the image
> (cp), instead of passing it to libvirt as a virtio device:
>
> --------------------------------
> Thu Dec 15 10:26:09 2011 [DiM][I]: New VM state is ACTIVE.
> Thu Dec 15 10:26:09 2011 [LCM][I]: New VM state is PROLOG.
> Thu Dec 15 10:26:09 2011 [VM][I]: Virtual Machine has no context
> Thu Dec 15 10:26:09 2011 [TM][I]: Command execution fail:
> /usr/lib/one/tm_commands/shared/tm_clone.sh
>
> /dev/disk/by-path/ip-192.168.117.1:3260-iscsi-iqn.2009-02.net.nsn-net:whipper.f16-min-lun-0
> onebula:/var/lib/one//10/images/disk.0
> Thu Dec 15 10:26:09 2011 [TM][D]: tm_clone.sh:
>
> /dev/disk/by-path/ip-192.168.117.1:3260-iscsi-iqn.2009-02.net.nsn-net:whipper.f16-min-lun-0
> onebula:/var/lib/one//10/images/disk.0
> Thu Dec 15 10:26:09 2011 [TM][D]: tm_clone.sh: DST:
> /var/lib/one//10/images/disk.0
> Thu Dec 15 10:26:09 2011 [TM][I]: tm_clone.sh: Creating directory
> /var/lib/one//10/images
> Thu Dec 15 10:26:09 2011 [TM][I]: tm_clone.sh: Executed "mkdir -p
> /var/lib/one//10/images".
> Thu Dec 15 10:26:09 2011 [TM][I]: tm_clone.sh: Executed "chmod a+w
> /var/lib/one//10/images".
> Thu Dec 15 10:26:09 2011 [TM][I]: tm_clone.sh: Cloning
> 3260-iscsi-iqn.2009-02.net.nsn-net:whipper.f16-min-lun-0
> Thu Dec 15 10:26:09 2011 [TM][E]: tm_clone.sh: Command "cp -r
> 3260-iscsi-iqn.2009-02.net.nsn-net:whipper.f16-min-lun-0
> /var/lib/one//10/images/disk.0" failed.
> Thu Dec 15 10:26:09 2011 [TM][E]: tm_clone.sh: cp: cannot stat
> `3260-iscsi-iqn.2009-02.net.nsn-net:whipper.f16-min-lun-0': No such file
> or directory
> Thu Dec 15 10:26:09 2011 [TM][E]: Error copying
>
> /dev/disk/by-path/ip-192.168.117.1:3260-iscsi-iqn.2009-02.net.nsn-net:whipper.f16-min-lun-0
> to onebula:/var/lib/one//10/images/disk.0
> Thu Dec 15 10:26:09 2011 [TM][I]: ExitCode: 1
> Thu Dec 15 10:26:09 2011 [TM][E]: Error excuting image transfer script:
> Error copying
>
> /dev/disk/by-path/ip-192.168.117.1:3260-iscsi-iqn.2009-02.net.nsn-net:whipper.f16-min-lun-0
> to onebula:/var/lib/one//10/images/disk.0
> Thu Dec 15 10:26:09 2011 [DiM][I]: New VM state is FAILED
> --------------------------------
>
> Thanks for the answer so far.
>
>
> On 2011-12-12 15:33, ext Tengvall, Ilkka (NSN - FI Espoo) wrote:
> > Hi,
> >
> > I'm new to Open Nebula, and have some questions. First one would be
> > about iscsi support. I can't find any reference from oned documents
> > itself about iscsi. Is it possible to configure guests  using iscsi lun
> > from remote server as a os block device?
> >
> > I have done it using libvirt, so it works, but how to map this to oned
> > configs?
> >
> > another way which would also work would be booting kernel directly or
> > via ipxe and give it iscsi as a root device. Both of those work too.
> >
> > Is there a way to do this in oned?
> >
> > I found an old related posting here, but I don't know if it ever led to
> > anything:
> >
> >
> http://lists.opennebula.org/htdig.cgi/users-opennebula.org/2009-July/000599.html
> >
>
>
> --
> Ilkka Tengvall
> Senior Specialist, Linux & Virtualization Architecture
>
> _______________________________________________
> Users mailing list
> Users at lists.opennebula.org
> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>
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