[one-users] Errors, problems when "creating VM using OpenNebula 3.6.0 in Ubuntu 12.04 with iSCSI datastore"

Wed Dec 18 06:50:25 PST 2013

Hi,

you should never use SOURCE but PATH. Can you try again with:

NAME = "Winxp-iscsi"
PATH = /var/lib/images/win-xp.qcow2
TYPE = OS
PUBLIC = YES

Cheers,
Jaime

On Wed, Dec 11, 2013 at 11:10 PM, Qiubo Su (David Su) <qiubosu at gmail.com>wrote:

> Dear Jaime (and the OpenNebula Community members),
>
> Thanks for your reply.
>
> I will upgrade to OpenNebula 3.8.1/5 to see how it will go.
>
> 1) when run "oneimage show 0", it should have below output:
>
> ......
>
>
> SOURCE: iqn.2013-12.iSCSIHost:192.168.1.7.vg-one.lv-one-13
> PATH: /var/lib/images/win-xp.qcow2
>
> ......
>
> but it have below output:
>
> ......
>
> "SOURCE: /var/lib/images/win-xp.qcow2".
>
> ......
>
> For the above result, the image template file winxp.img is defined as
> below:
>
> NAME = "Winxp-iscsi"
> SOURCE = /var/lib/images/win-xp.qcow2
> TYPE = OS
> PUBLIC = YES
>
> Image creation command is "oneimage create winxp.img -d 100". 100 is the
> ID of in iSCSI Datastore.
>
> 2) In the winxp.img, change the SOURCE to PATH, create the image again,
> then when run "oneimage show 0", the result is different, as shown below:
>
> ......
>
> SOURCE:
> PATH: /var/lib/images/win-xp.qcow2
>
> ......
>
> The error message is "Error copying image in the datastore: Error
> registering 192.168.1.1:/dev/vg-one/lv-one-3"
>
> This show it is still incorrect.
>
> 3) Will upgrade the OpenNebula to see the difference. It is much
> appreciated if you can email me the correct information on how to "Create a
> winxp VM using OpenNebula 3.x.x in Ubuntu 12.04 with iSCSI datastore".
>
> Thanks kindly,
> Q.S.
>
> On Thu, Dec 12, 2013 at 6:43 AM, Jaime Melis <jmelis at c12g.com> wrote:
>
>> Hi,
>>
>> OpenNebula 4.4 which has been just released has deprectated iSCSI. The
>> main reason is that the tgt iSCSI daemon is not very flexible and we
>> recommend using other storage mechanisms instead.
>>
>> OpenNebula 3.6.0 should be definitetly upgraded to newer versions.
>>
>> Regarding your specific problem, can you please detail what command and
>> image file did you use to create the image?
>>
>> cheers,
>> Jaime
>>
>>
>> On Wed, Dec 4, 2013 at 7:25 AM, Qiubo Su (David Su) <qiubosu at gmail.com>wrote:
>>
>>> Dear OpenNebula Community,
>>>
>>> 1) To create VM using OpenNebula 3.6.0 in Ubuntu 12.04 with iSCSI
>>> datastore, I create Front-end, NodeServer and iSCSIHost (an iSCSI target VM
>>> created within the NodeServer. The IP of iSCSIHost is 192.168.1.7).
>>>
>>> The required setup, configuration for Front-end, NodeServer and
>>> iSCSIHost looks fine.
>>>
>>> The host, image, vnet and datastore creation under NodeServer are ok
>>> (except of the VM creation in below 2) ), but when "oneimage show 0", can't
>>> see output of
>>>
>>> "SOURCE: iqn.2013-12.iSCSIHost:192.168.1.7.vg-one.lv-one-13
>>> PATH: /var/lib/images/win-xp.qcow2"
>>>
>>> while only can see "SOURCE: /var/lib/images/win-xp.qcow2".
>>>
>>> the opennebula 3.6.0 used was downloaded in more than one year ago. is
>>> it the correct version of opennebula to use?
>>>
>>> 2) the VM creation is failed and got "error executing image transfer
>>> script: error cloning NodeServer:/dev//var/lib/image/win-xp-2/qcow2-0".
>>> Below is the vm.log for this VM creation:
>>>
>>> Wed Dec  4 17:38:56 2013 [DiM][I]: New VM state is ACTIVE.
>>> Wed Dec  4 17:38:56 2013 [LCM][I]: New VM state is PROLOG.
>>> Wed Dec  4 17:38:56 2013 [TM][I]: Command execution fail:
>>> /var/lib/one/var/remotes/tm/iscsi/clone
>>> Front-end:/var/lib/image/win-xp-2.qcow2
>>> NodeServer:/var/lib/one/var//datastores/0/0/disk.0 0 101
>>> Wed Dec  4 17:38:56 2013 [TM][E]: clone: Command "    set -e
>>> Wed Dec  4 17:38:56 2013 [TM][I]:
>>> Wed Dec  4 17:38:56 2013 [TM][I]: # get size
>>> Wed Dec  4 17:38:56 2013 [TM][I]: SIZE=$(sudo lvs --noheadings -o
>>> lv_size "/dev//var/lib/image/win-xp-2/qcow2")
>>> Wed Dec  4 17:38:56 2013 [TM][I]:
>>> Wed Dec  4 17:38:56 2013 [TM][I]: # create lv
>>> Wed Dec  4 17:38:56 2013 [TM][I]: sudo lvcreate -L${SIZE}
>>> /var/lib/image/win-xp-2 -n qcow2-0
>>> Wed Dec  4 17:38:56 2013 [TM][I]:
>>> Wed Dec  4 17:38:56 2013 [TM][I]: # clone lv with dd
>>> Wed Dec  4 17:38:56 2013 [TM][I]: sudo dd
>>> if=/dev//var/lib/image/win-xp-2/qcow2
>>> of=/dev//var/lib/image/win-xp-2/qcow2-0 bs=64k
>>> Wed Dec  4 17:38:56 2013 [TM][I]:
>>> Wed Dec  4 17:38:56 2013 [TM][I]: # new iscsi target
>>> Wed Dec  4 17:38:56 2013 [TM][I]: TID=$(sudo tgtadm --lld iscsi --op
>>> show --mode target |             grep "Target" | tail -n 1 |
>>> awk '{split($2,tmp,":"); print tmp[1]+1;}')
>>> Wed Dec  4 17:38:56 2013 [TM][I]:
>>> Wed Dec  4 17:38:56 2013 [TM][I]: sudo tgtadm --lld iscsi --op new
>>> --mode target --tid $TID  --targetname
>>> Front-end:/var/lib/image/win-xp-2.qcow2-0
>>> Wed Dec  4 17:38:56 2013 [TM][I]: sudo tgtadm --lld iscsi --op bind
>>> --mode target --tid $TID -I ALL
>>> Wed Dec  4 17:38:56 2013 [TM][I]: sudo tgtadm --lld iscsi --op new
>>> --mode logicalunit --tid $TID  --lun 1 --backing-store
>>> /dev//var/lib/image/win-xp-2/qcow2-0
>>> Wed Dec  4 17:38:56 2013 [TM][I]: sudo tgt-admin --dump |sudo tee
>>> /etc/tgt/targets.conf >& /dev/null" failed: ssh: Could not resolve hostname
>>> /var/lib/image/win-xp-2.qcow2: Name or service not known
>>> Wed Dec  4 17:38:56 2013 [TM][E]: Error cloning
>>> NodeServer:/dev//var/lib/image/win-xp-2/qcow2-0
>>> Wed Dec  4 17:38:56 2013 [TM][I]: ExitCode: 255
>>> Wed Dec  4 17:38:56 2013 [TM][E]: Error executing image transfer script:
>>> Error cloning NodeServer:/dev//var/lib/image/win-xp-2/qcow2-0
>>> Wed Dec  4 17:38:56 2013 [DiM][I]: New VM state is FAILED
>>>
>>> 3) the iSCSI INITIATOR is only installed in the NodeServer. the tgt (for
>>> tgt admin) is only installed in the iSCSIHost, so the /etc/tgt/targets.conf
>>> is only in the iSCSIHost.
>>>
>>> From the result, it doesn't look like the Front-end and NodeServer can
>>> well communicate with the iSCSIHost, can access the iSCSI storage partition
>>> created under the iSCSIHost target.
>>>
>>> It is much appreciated if anyone can help with the above.
>>>
>>> Thanks kindly,
>>> Q.S.
>>>
>>> _______________________________________________
>>> Users mailing list
>>> Users at lists.opennebula.org
>>> http://lists.opennebula.org/listinfo.cgi/users-opennebula.org
>>>
>>>
>>
>>
>> --
>> Jaime Melis
>> C12G Labs - Flexible Enterprise Cloud Made Simple
>> http://www.c12g.com | jmelis at c12g.com
>>
>> --
>>
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>
>

-- 
Jaime Melis
C12G Labs - Flexible Enterprise Cloud Made Simple
http://www.c12g.com | jmelis at c12g.com

--

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