1. OpenStack Summit; Operations Track
November 7th, 2013
AsiaWorld-Expo, Hong Kong
Mark Detrick – Brocade & Gary Thunquest – HP
Taking Advantage of Fibre Channel SAN Infrastructure in OpenStack Environments

2. Openstack Summit in Hong Kong
Agenda
Why is FC support important?
Blueprints
What is planned for the Icehouse release?
FC Zoning
A Proof of Concept
November 2013
Openstack Summit in Hong Kong

3. Why is FC support important?
Leverage existing FC environments
Simplified Zone Management
Automatic detection of zone configuration
Automatic detection of SAN context
Automatic application to current active zone set
No manual intervention
To take advantage of FC storage benefits
Performance
Resiliency
Security
Support requirements for block storage applications
November 2013
Openstack Summit in Hong Kong

4. FC Support Architecture

5. FC Block Storage Initiatives
2 Blueprints
FC Block Storage
No automated zoning
Blueprint approved
Implemented in Grizzly
FC SAN Zone Controller Blueprint
Contains automated zoning
Coding – work in progress
Icehouse release
November 2013
Openstack Summit in Hong Kong

6. FC Support in OpenStack
Cinder
Volume Manager
Available in Cinder’s block storage services
FC Volume Driver
Storage vendors’ specific driver
FC SAN Lookup Service
New: required to associate correct storage ports with compute pWWN
FC Zone Manager
Zone lifecycle management
FC Zone Driver
Fabric vendors’ specific driver
November 2013
Openstack Summit in Hong Kong

7. FC Support with OpenStack
Volume/Zone Manager Operations
Nova makes a volume request to Cinder
Cinder’s Volume Manager gathers Initiator/Target WWN map info
Volume Manager calls FC Zone Manager (zoning is enabled)
FC Zone Mgr + FC Zone Driver provide initiator/target access control
Cinder’s Volume Mgr completes request by providing connectivity info to Nova
November 2013
Openstack Summit in Hong Kong

8. FC Support in OpenStack
Nova
Passes Initiator WWN to Cinder 16
Initialize Connection
Cinder 1
Get Device Mapping
Connection Info
Returns Initiator/Target maps for all SAN contexts
Returns correlated Initiator/Target WWN map 15
Vendor Specific Implementation
Initialize Connection
FC SAN Lookup 4
FC Volume Driver 3 2
Volume Manager 14
FC Zone Manager 13
FC Zone Driver 5 7 8 9 10 12
Add/Remove Zone
Volume Data (attach/detach) 11 6
Storage Volume
Add/Remove Connection
Add/Remove Connection
FC SAN
November 2013
Openstack Summit in Hong Kong

9. FC Zoning

10. FC Support in OpenStack
Zone Lifecycle Management Operations
Zoning Modes
Fabric
Volume Manager is responsible for configuration of zoning
None
Volume Manager is not responsible for configuration of zoning
Manual or other automated process may be used (e.g., Peer Zoning)
In an Active Zone Set…
Add/Update a zone
Remove a zone
Read/Get a zone
November 2013
Openstack Summit in Hong Kong

11. FC Support with OpenStack
FC Zoning
Single Initiator Zoning
Single initiator with multiple targets per zone
Volume attach operation could result in:
Adding a new zone to the active zone set
Updating an existing zone already in use
Single Initiator & Target Zoning
Single initiator to a single target
Every volume attach operation could result in a new zone
Zoning for multiple FC fabrics/SANs
Automatically determine the fabric/SAN context to apply zone config
November 2013
Openstack Summit in Hong Kong

12. FC Support with OpenStack
FC Zone Manager
Zoning mode “fabric” and volume driver type “fibre_channel”
Instantiates appropriate vendor specific FC Zone Driver
Delegates the zoning responsibility to the proper FC Zone Driver
The Brocade FC Zone Driver supports zoning for Brocade products
November 2013
Openstack Summit in Hong Kong

13. PoC Reference Architecture

14. OpenStack FC – 3Par Reference Architecture
Nova
Cinder
FC Zone Manager
FC Driver Class
KVM Driver
Brocade FC Zoning Driver
3Par FC Driver
OpenStack
Havana: Open Zoned
Icehouse: Zoning Manager …
Servers
Fibre Channel switches
Storage
Fibre Channel
FC Failover port pair (3Par Persistent Ports)
November 2013
Openstack Summit in Hong Kong

15. Openstack Summit in Hong Kong
Lastly…
Icehouse
Cinder enhancements will address common FC use cases
Visit the Brocade booth C43
Watch the demo & learn more
Technical “At a Glance”
Available at brocade.com/OpenStack
Also available at the booth
Reference architectures available
Mark Detrick – Data Center Solutions Architect
November 2013
Openstack Summit in Hong Kong

16. Questions?