[ovirt-users] UCS Integration (vmfex/SRIOV)

Thu Feb 18 04:51:47 UTC 2016

Hi Michael,

Thanks for this information - it's great, the guide should be updated on the ovirt webpage to reflect the information you've provided below.

Just to hopefully help someone else out in the future - we had only 1 vNIC defined in the UCS Service Profile, this caused problems when we enabled dynamic vnic's on that host.

The resolution was leave the initial interface as it is.. and as a management interface and setup another interface for the dynamic vnics. Ensure that your "vNIC/vHBA Placement" doesn't change either!

[cid:image001.png at 01D16A5D.E23F0A20]

So in this case eth0 = ovirtmgmt bridge, and ovirt device is the vNICs.

When the system reboots after this change I’ve lost my bridge and vdsmd failed to start.

I manually setup the first interface again so I can talk to it again and I’ve even setup the bridge.... but I can’t get it working again? Below is what I see in the logs. I’ve even tried a re-installation(ovirt maint/reinstall) but no joy..

I’ve managed to get this working on 1 host.. but no idea what I did that was different!?.. If I remove the vNIC ovirt it starts working as expected - where can I find out some more information on what vdsm is doing?

systemd: Started Auxiliary vdsm service for running helper functions as root.

systemd: Starting Auxiliary vdsm service for running helper functions as root...

systemd: Starting Virtualization daemon...

journal: libvirt version: 1.2.17, package: 13.el7_2.2 (CentOS BuildSystem <http://bugs.centos.org>, 2015-12-09-13:08:22, worker1.bsys.centos.org)

journal: Module /usr/lib64/libvirt/connection-driver/libvirt_driver_lxc.so not accessible

systemd: Started Virtualization daemon.

systemd: Starting Virtual Desktop Server Manager network restoration...

vdsm-tool: Traceback (most recent call last):

vdsm-tool: File "/usr/share/vdsm/vdsm-restore-net-config", line 425, in <module>

vdsm-tool: restore(args)

vdsm-tool: File "/usr/share/vdsm/vdsm-restore-net-config", line 388, in restore

vdsm-tool: unified_restoration()

vdsm-tool: File "/usr/share/vdsm/vdsm-restore-net-config", line 110, in unified_restoration

vdsm-tool: _remove_networks_in_running_config()

vdsm-tool: File "/usr/share/vdsm/vdsm-restore-net-config", line 195, in _remove_networks_in_running_config

vdsm-tool: _inRollback=True)

vdsm-tool: File "/usr/share/vdsm/network/api.py", line 932, in setupNetworks

vdsm-tool: "system" % network)

vdsm-tool: network.errors.ConfigNetworkError: (27, "Cannot delete network 'ovirtmgmt': It doesn't exist in the system")

vdsm-tool: Traceback (most recent call last):

vdsm-tool: File "/usr/bin/vdsm-tool", line 219, in main

vdsm-tool: return tool_command[cmd]["command"](*args)

vdsm-tool: File "/usr/lib/python2.7/site-packages/vdsm/tool/restore_nets.py", line 41, in restore_command

vdsm-tool: exec_restore(cmd)

vdsm-tool: File "/usr/lib/python2.7/site-packages/vdsm/tool/restore_nets.py", line 54, in exec_restore

vdsm-tool: raise EnvironmentError('Failed to restore the persisted networks')

vdsm-tool: EnvironmentError: Failed to restore the persisted networks

systemd: vdsm-network.service: main process exited, code=exited, status=1/FAILURE

systemd: Failed to start Virtual Desktop Server Manager network restoration.

systemd: Dependency failed for Virtual Desktop Server Manager.

systemd: Dependency failed for MOM instance configured for VDSM purposes.

systemd: Job mom-vdsm.service/start failed with result 'dependency'.

systemd: Job vdsmd.service/start failed with result 'dependency'.

systemd: Unit vdsm-network.service entered failed state.

systemd: vdsm-network.service failed.

systemd-logind: Removed session 5.

Cheers

David

-----Original Message-----

From: Michael Burman [mailto:mburman at redhat.com]

Sent: Wednesday, February 17, 2016 16:56

To: David LeVene <David.LeVene at blackboard.com<mailto:David.LeVene at blackboard.com>>

Cc: users at ovirt.org<mailto:users at ovirt.org>

Subject: Re: [ovirt-users] UCS Integration (vmfex/SRIOV)

HI David)

If everything configured properly on your UCS side and you have a working Port Profile id/name your next steps should be:

1) Run for example:

engine-config -s CustomDeviceProperties="{type=interface;prop={ifacemacspoof=^(true|false)$;queues=[1-9][0-9]*;vmfex=^[a-zA-Z0-9_.-]{2,32}$;SecurityGroups=^(?:(?:[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}, *)*[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}|)$}}" --cver=3.5

- Restart your ovirt-engine service

- with --cver=3.5 you can specify your cluster version level. ^^

- If you don't want that it will overwrite your current attributes, you have to send them all as well(like on my example above). ^^

2) Install vdsm-hook-vmfex-dev on your nodes

3) In ovirt engine you can verify that host have the hooks installed under  'Hosts' main tab - > 'Host Hooks' sub tab You should see there: a) before_device_migrate_destination b) before_device_create c) before_nic_hotplug

4) Create new network and edit the vNIC profile. Choose from the CustomDeviceProperties the 'vmfex' key(like in your example) and in the right field enter your Port Profile id/name(the one that is configured on your UCS side)

5) Go to 'Setup Networks' sub tab under 'Hosts' -> attach the network with the vmfex profile to NIC on host(drag it)

6) Create VM or use exist one, create/add new vNIC to the VM with the vmfex profile

7) Run VM

Good luck)

----- Original Message -----

From: "David LeVene" <David.LeVene at blackboard.com<mailto:David.LeVene at blackboard.com>>

To: users at ovirt.org<mailto:users at ovirt.org>

Sent: Wednesday, February 17, 2016 5:41:21 AM

Subject: [ovirt-users] UCS Integration (vmfex/SRIOV)

Hey All,

I’ve got a test instance and would like to get vmfex working. I’m very new to ovirt, so some of the basics are still new to me.

I currently have a 3 node setup which are all configured without vmfex, what I’d like to do is convert the hosts one by one to use vmfex.

From the UCS side of things it works and I’m presented with the SRIOV devices in the host.. but I can’t get the network config in the ovirt admin setup..

I’m following this guide, but not getting very far… http://www.ovirt.org/Features/UCS_Integration

This step says to do this, which is fine.. but when I do this I overwrite the current attribute in there.

engine-config -s CustomDeviceProperties='{type=interface;prop={vmfex=^[a-zA-Z0-9_.-]{2,32}$}}'

which is…

# engine-config -g CustomDeviceProperties

CustomDeviceProperties: version: 3.0

CustomDeviceProperties: version: 3.1

CustomDeviceProperties: version: 3.2

CustomDeviceProperties: version: 3.3

CustomDeviceProperties: {type=interface;prop={SecurityGroups=^(?:(?:[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}, *)*[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}|)$}} version: 3.4

CustomDeviceProperties: {type=interface;prop={SecurityGroups=^(?:(?:[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}, *)*[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}|)$}} version: 3.5

CustomDeviceProperties: {type=interface;prop={SecurityGroups=^(?:(?:[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}, *)*[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}|)$}} version: 3.6

When I update it using the command above, it replaces it…

When I append the 2 together, I get see vmfex & prop in the ovirt-engine (screen shot) side of things.. so can someone please check my command to ensure I’m not missing something!

engine-config -s CustomDeviceProperties='{type=interface;prop={vmfex=^[a-zA-Z0-9_.-]{2,32}$}}{type=interface;prop={SecurityGroups=^(?:(?:[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}, *)*[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}|)$}}’

# engine-config -g CustomDeviceProperties

CustomDeviceProperties: version: 3.0

CustomDeviceProperties: version: 3.1

CustomDeviceProperties: version: 3.2

CustomDeviceProperties: version: 3.3

CustomDeviceProperties: {type=interface;prop={SecurityGroups=^(?:(?:[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}, *)*[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}|)$}} version: 3.4

CustomDeviceProperties: {type=interface;prop={SecurityGroups=^(?:(?:[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}, *)*[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}|)$}} version: 3.5

CustomDeviceProperties: {type=interface;prop={vmfex=^[a-zA-Z0-9_.-]{2,32}$}}{type=interface;prop={SecurityGroups=^(?:(?:[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}, *)*[0-9a-fA-F]{8}-(?:[0-9a-fA-F]{4}-){3}[0-9a-fA-F]{12}|)$}} version: 3.6

As soon as I enable vmfex on a host that was previously working.. it stops working and the network no longer works on the host… (this is not using any of the config above.. just enabled the vmfex in the UCS manager)

What is the “correct” way to bring a Host in ovirt using vmfex?

Regards

David

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