Difference between revisions of "Mellanox-Cinder"
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For more details, please refer any inquiries to [mailto:openstack@mellanox.com openstack@mellanox.com]. | For more details, please refer any inquiries to [mailto:openstack@mellanox.com openstack@mellanox.com]. | ||
| − | 4. [http://docs.openstack.org/havana/install-guide/install/yum/content/cinder-controller.html | + | 4. [http://docs.openstack.org/havana/install-guide/install/yum/content/cinder-controller.html Cinder-controller] |
| − | 5. [http://docs.openstack.org/havana/install-guide/install/yum/content/cinder-node.html | + | 5. [http://docs.openstack.org/havana/install-guide/install/yum/content/cinder-node.html Cinder-node] |
| − | 6. [http://docs.openstack.org/trunk/openstack-compute/install/yum/content/cinder-install.html | + | 6. [http://docs.openstack.org/trunk/openstack-compute/install/yum/content/cinder-install.html Cinder-install] |
Return to [https://wiki.openstack.org/wiki/Mellanox-OpenStack Mellanox-OpenStack] wiki page. | Return to [https://wiki.openstack.org/wiki/Mellanox-OpenStack Mellanox-OpenStack] wiki page. | ||
Revision as of 09:30, 13 November 2013
Contents
Overview
iSER (iSCSI over RDMA) Mellanox OpenStack support to Cinder.
This can allow 5x faster bandwidth compared to using iSCSI TCP.
For example, over RAM device LUN I got ~1.3GBps Vs. ~5.5GBps (TCP Vs. iSER), and much lower CPU overhead.
Installation
Configuration
In order to enable iSER, need to adjust these values at /etc/cinder/cinder.conf:
iser_ip_address = <ipoib/roce_address> volume_driver = cinder.volume.drivers.lvm.LVMISERDriver
iser_ip_address is required to do a "discovery" over the IB/RoCE interface from the initiator side.
volume_driver points cinder to use the ISERDriver, instead the LVMISCSIDriver.
On nova-compute side change the following in /etc/nova/nova.conf:
libvirt_volume_drivers = iser=nova.virt.libvirt.volume.LibvirtISERVolumeDriver
Getting the code
wget https://github.com/mellanox-openstack/cinder-iser/archive/stable/grizzly.zip cd cinder-iser-stable-grizzly
Applying the patches
You have two choices:
- To apply this support, replace the files under "cinder/cinder/" And "nova/nova/" Respectively.
- Apply the patches under "cinder/" And "nova/", don't forget to copy "cinder/cinder/volume/iser.py" if you choose this way.
Restarting the services
Restart Cinder and Nova compute services
References
1. OpenStack solution page at Mellanox site
3. Mellanox OFED web page For more details, please refer any inquiries to openstack@mellanox.com.
5. Cinder-node
Return to Mellanox-OpenStack wiki page.
