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Hi Vish,

Yeah you are right. I checked the settings in the volume database and 
for all volumes the entry is similar to following.

controller_node:3260,3 iqn.2010-10.org.openstack:volume-00000004

But it seems these entries are being generated automatically, i.e. as 
soon as I issue volume creation command. How do I fix this? I am already 
using properly configured iscsi_ip_address option in the controller's 
nova.conf file.

Regards,
Shashank Sahni

On 05/15/2012 02:15 AM, Vishvananda Ishaya wrote:
> It should be getting the connection properties via the call to the 
> volume node.  Is it possible your volume in the database has incorrect 
> properties stored in provider_location?
>
> It is set from the cofig iscsi_ip_address, so if you have not set that 
> configuration option to a routable ip from compute -> volume then it 
> will not work.  Also, changing the config option will not change the 
> existing values in the db, so you might have to change those manually.
>
> Vish
>
> On May 14, 2012, at 7:28 AM, Shashank Sahni wrote:
>
>> Hi,
>>
>> Thanks for the reply.
>>
>> Yes, I've gone through the document. Volume creation and deletion are 
>> working perfectly fine. When I run "iscsiadm -m discovery -t st -p 
>> volume_node" on the compute node, I can see the volumes. But somehow 
>> the compute node is being misinformed about the volume node after 
>> giving the attach command.
>>
>> I'm not using iscsitarget as per that document. Installation of 
>> nova-volume on ubuntu precise automatically took care of it using tgt.
>>
>> Kind Regards,
>> Shashank Sahni
>>
>> On 05/14/2012 07:34 PM, raja.meena at wipro.com wrote:
>>>
>>> Hi Shashank ,
>>>
>>> I preassume that the steps outlined in the link below has been followed.
>>>
>>> http://docs.openstack.org/trunk/openstack-compute/admin/content/managing-volumes.html
>>>
>>> Thanks
>>>
>>> Meena Raja
>>>
>>> *From:*openstack-bounces+raja.meena=wipro.com at lists.launchpad.net 
>>> [mailto:openstack-bounces+raja.meena=wipro.com at lists.launchpad.net] 
>>> *On Behalf Of *Shashank Sahni
>>> *Sent:* Monday, May 14, 2012 6:23 PM
>>> *To:* Razique Mahroua
>>> *Cc:* openstack at lists.launchpad.net
>>> *Subject:* Re: [Openstack] Problem with attaching disks to an instance
>>>
>>> Hi,
>>>
>>> I set this option in the configuration files of both compute and 
>>> controller. Restarted the service, but unfortunately same result.
>>>
>>> Regards,
>>> Shashank Sahni
>>>
>>> On 05/14/2012 05:58 PM, Razique Mahroua wrote:
>>>
>>> Hi,
>>> do you have the flag iscsi_ip_prefix configured in your nova.conf ?
>>> Razique
>>>
>>>
>>> <postbox-contact.jpg>
>>>
>>> *Shashank Sahni* <mailto:shredder12 at linuxers.org>
>>>
>>> 14 mai 2012 14:22
>>>
>>> Hi everyone,
>>>
>>> I'm trying to configure a multi-node installation. Here is a brief 
>>> overview.
>>>
>>> 1) controller - api+network+scheduler+novnc+glance+keystone 
>>> (nova.conf - http://paste.openstack.org/show/17470/)
>>> 2) compute node (nova.conf - http://paste.openstack.org/show/17469)
>>> 3) volume node(single)
>>>
>>> Compute and vnc are working fine. I'm able to create and delete 
>>> volumes. Iscsi discovery from the compute nodes is working too. But 
>>> when I try to attach a volume, the compute node tries to connect to 
>>> the controller node instead of volume and hence crashes with the 
>>> following error.
>>>
>>> 2012-05-14 17:32:13 TRACE nova.rpc.amqp ProcessExecutionError: 
>>> Unexpected error while running command.
>>> 2012-05-14 17:32:13 TRACE nova.rpc.amqp Command: sudo nova-rootwrap 
>>> iscsiadm -m node -T iqn.2010-10.org.openstack:volume-00000003 -p 
>>> controller:3260 --rescan
>>> 2012-05-14 17:32:13 TRACE nova.rpc.amqp Exit code: 255
>>> 2012-05-14 17:32:13 TRACE nova.rpc.amqp Stdout: ''
>>> 2012-05-14 17:32:13 TRACE nova.rpc.amqp Stderr: 'iscsiadm: No portal 
>>> found.\n'
>>>
>>> Any suggestions?
>>>
>>> Kind Regards,
>>> Shashank Sahni
>>>
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>>
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