openstack team mailing list archive

[Vishvananda Ishaya <vishvananda@xxxxxxxxx>]

you have to set iscsi_ip_address on the volume node.  The volume node is the one that creates this db entry.

Vish

On May 14, 2012, at 1:54 PM, Shashank Sahni wrote:

> 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@xxxxxxxxx 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@xxxxxxxxxxxxxxxxxxx [mailto:openstack-bounces+raja.meena=wipro.com@xxxxxxxxxxxxxxxxxxx] On Behalf Of Shashank Sahni
>>>> Sent: Monday, May 14, 2012 6:23 PM
>>>> To: Razique Mahroua
>>>> Cc: openstack@xxxxxxxxxxxxxxxxxxx
>>>> 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
>>>> 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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>>>> -- 
>>>> Nuage & Co - Razique Mahroua 
>>>> razique.mahroua@xxxxxxxxx
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>> 
>