Appreciate for your reply, Yannick.
In my host, the service of tgtd and configuration in /etc/cinder/cinder.conf
is normal.
With the kindly help of Wanghao, I find out the reason here.
The image in my server is a livecd iso. The 'root_device_name' of these
instances created by the image are '/dev/hda'.
mysql> select * from instances;
+---------------------+---------------------+---------------------+----+-------------+----------------------------------+----------------------------------+--------------------------------------+-----------+------------+--------------+----------+----------+-------------+----------+-----------+-------+----------+-----------+-----------+----------------+---------------------+---------------------+---------------------+--------------+---------------------+-------------------+--------+---------+-------------+------------------+---------+--------------------------------------+--------------+------------------+--------------+--------------+--------------+------------+--------------------------+---------------------+----------+------------------+--------------------+-------------------+---------+--------------+-----------+-----------+---------+
| created_at | updated_at | deleted_at | id |
internal_id | user_id | project_id
| image_ref | kernel_id | ramdisk_id |
launch_index | key_name | key_data | power_state | vm_state | memory_mb | vcpus
| hostname | host | user_data | reservation_id | scheduled_at |
launched_at | terminated_at | display_name | display_description
| availability_zone | locked | os_type | launched_on | instance_type_id |
vm_mode | uuid | architecture |
root_device_name | access_ip_v4 | access_ip_v6 | config_drive | task_state |
default_ephemeral_device | default_swap_device | progress | auto_disk_config |
shutdown_terminate | disable_terminate | root_gb | ephemeral_gb | cell_name |
node | deleted |
+---------------------+---------------------+---------------------+----+-------------+----------------------------------+----------------------------------+--------------------------------------+-----------+------------+--------------+----------+----------+-------------+----------+-----------+-------+----------+-----------+-----------+----------------+---------------------+---------------------+---------------------+--------------+---------------------+-------------------+--------+---------+-------------+------------------+---------+--------------------------------------+--------------+------------------+--------------+--------------+--------------+------------+--------------------------+---------------------+----------+------------------+--------------------+-------------------+---------+--------------+-----------+-----------+---------+
| 2013-09-22 04:05:22 | 2013-09-22 04:06:20 | 2013-09-22 04:06:21 | 7 |
NULL | 7b0e8dc57dba4612aafbb7ec199076ac | ffce15ba3b6549b28857679dcb1b8660 |
7c4faf22-b132-46eb-89ad-cee9ecea4c85 | | | 0 |
NULL | NULL | 1 | deleted | 2048 | 1 | test |
localhost | NULL | r-q09d30oo | 2013-09-22 04:05:22 | 2013-09-22
04:05:43 | 2013-09-22 04:06:20 | test | test | NULL
| 0 | NULL | localhost | 5 | NULL |
6ffed2fc-a9e6-4c0d-b958-bf302b01dbb1 | NULL | /dev/hda | NULL
| NULL | | NULL | NULL |
NULL | 0 | NULL | 0 |
0 | 20 | 0 | NULL | localhost | 7 |
The instance gets its disk type in nova/block_device.py.
def properties_root_device_name(properties):
"""get root device name from image meta data.
If it isn't specified, return None.
"""
root_device_name = None
# NOTE(yamahata): see image_service.s3.s3create()
for bdm in properties.get('mappings', []):
if bdm['virtual'] == 'root':
root_device_name = bdm['device']
# NOTE(yamahata): register_image's command line can override
# <machine>.manifest.xml
if 'root_device_name' in properties:
root_device_name = properties['root_device_name']
return root_device_name
Best Regards,
Qi
From: Yannick Foeillet [mailto:[email protected]]
Sent: Wednesday, September 18, 2013 10:05 PM
To: [email protected]
Subject: Re: [Openstack] [Cinder] Attach the volume in Local Disk failed. The
log in nova/compute.log said "libvirtError: unsupported configuration: disk bus
'ide' cannot be hotplugged"
Hi,
The openstack was running on one server in my experiment. The VolumeGroup named
'cinder-volumes' was comprised by a local disk partition whose name was
'/dev/sda2'.
A volume was created in the dashboard, and I tried to attach it to a running
instance. However, the operation was failed.
The exception in nova/compute.log said that the disk bus ide could not be
hotplugged.
As known to all, the ide bus cannot be hotplugged to a running instance.
It seems that the current version used the bus type 'ide' as the default one.
In this case, all the volumes created in the 'cinder-volumes' cannot be
hotplugged into the running vm. You can never attach a volume to a suspend
instance in the dashboard. There is no choice to this in the portal.
How can I choose the type 'virtio' when the volume has been attached?
[root@localhost nova]# nova --version
2.13.0
[root@localhost nova]# uname -a
Linux localhost 3.9.4-200.fc18.x86_64 #1 SMP Fri May 24 20:10:49 UTC 2013
x86_64 x86_64 x86_64 GNU/Linux
[root@localhost nova]#
I had the same issue on my storage node when iet and tgt process was running at
the same time.
For example in my cinder.conf :
iscsi_helper = etadm
So i stopped tgt service (service tgt stop) and restart iscsitarget and cinder
services .
After that everything was ok, perhaps you should try this method.
I hope it will help you.
--
Yannick Foeillet
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