Jon,
Why do you say " Obviously that won't work but I can't figure out why it is
happening " ?
The driver uses SSH to issue commands to the EQL. That's the API access path
for the EQL driver (and a common approach for other Cinder drivers)
Rob
-----Original Message-----
From: crowbar-bounces On Behalf Of Jon Bayless
Sent: Thursday, August 01, 2013 4:47 PM
To: crowbar
Subject: [Crowbar] Using Dell Equallogic with Openstack Cinder
Hello. Hoping to find some help with an issue in my attempt to use an
Equallogic array for a storage back end for Cinder with OpenStack Grizzly.
Since the Crowbar Grizzly release is not complete yet, we are trying to use the
Rackspace Private Cloud installer tool and so far it has worked very well.
Using it with a Ceph storage back end worked great but we want to see how
things work with Equallogic.
We have a fresh Equallogic running 6.0.2 release firmware and have installed
the eqlx.py into the appropriate driver location for the Cinder setup. The
config is all in place and we can start the Cinder volume service just fine.
Creating and deleting volumes works as well.
The problem comes when we try to actually use the Equallogic to actually have
the controller node or compute node login to an iSCSI volume to put data on it
(such as making a volume from an image). The log result is as
follows:
2013-08-01 13:46:20 ERROR [cinder.volume.manager] Error: ['Traceback
(most recent call last):
', ' File "/usr/lib/python2.7/dist-packages/cinder/volume/manager.py",
line 250, in create_volume
image_location)
', ' File "/usr/lib/python2.7/dist-packages/cinder/volume/manager.py",
line 189, in _create_volume
image_id)
', ' File "/usr/lib/python2.7/dist-packages/cinder/volume/manager.py",
line 602, in _copy_image_to_volume
image_id)
', ' File "/usr/lib/python2.7/dist-packages/cinder/volume/driver.py",
line 362, in copy_image_to_volume
iscsi_properties, volume_path = self._attach_volume( ', ' File
"/usr/lib/python2.7/dist-packages/cinder/volume/driver.py",
line 398, in _attach_volume
try:
', ' File "/usr/lib/python2.7/dist-packages/cinder/volume/driver.py",
line 304, in _run_iscsiadm
*iscsi_command, run_as_root=True,
', ' File
"/usr/lib/python2.7/dist-packages/cinder/volume/drivers/eqlx.py", line 221, in
_execute
return self._run_ssh(command, timeout=FLAGS.eqlx_cli_timeout) ', ' File
"/usr/lib/python2.7/dist-packages/cinder/volume/drivers/eqlx.py", line 73, in
__inner
res = gt.wait()
', ' File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py",
line 168, in wait
return self._exit_event.wait()
', ' File "/usr/lib/python2.7/dist-packages/eventlet/event.py", line 116, in
wait
return hubs.get_hub().switch()
', ' File "/usr/lib/python2.7/dist-packages/eventlet/hubs/hub.py", line 187,
in switch
return self.greenlet.switch()
', ' File "/usr/lib/python2.7/dist-packages/eventlet/greenthread.py",
line 194, in main
result = function(*args, **kwargs)
', ' File
"/usr/lib/python2.7/dist-packages/cinder/volume/drivers/eqlx.py", line 253, in
_run_ssh
raise exception.Error(msg, out)
', "Error: (u'Error executing EQL command: stty columns 255', ['iscsiadm -m
node -T
iqn.2001-05.com.equallogic:0-8a0906-b0976c809-2160000005851fab-volume-25fea6db-dd20-4f8a-9099-f1d96c122b3d
-p 10.64.0.5:3260', ' ^', 'Error: Bad command',
'OpenStack-InternalGroup> '])
"]
I'm no programmer but from what I can tell, it seems the eqlx driver is somehow
causing Cinder-volume to try to run the iscsiadm command at the end of that log
entry via SSH on the Equallogic shell. Obviously that won't work but I can't
figure out why it is happening.
Any insights?
Thanks
_______________________________________________
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For more information: http://crowbar.github.com/
_______________________________________________
Crowbar mailing list
[email protected]
https://lists.us.dell.com/mailman/listinfo/crowbar
For more information: http://crowbar.github.com/
