1. CoprHD and OpenStack
Northbound and Southbound

2. Agenda OpenStack overview CoprHD in OpenStack: cinder Northbound
CoprHD with southbound cinder

3. Hypervisor (KVM/Xen/ESX/…)
OpenStack
OpenStack services
Cloud Stack
Horizon (UI) VM VM VM
Configurable
Framework
API
Python implementation
Nova
Hypervisor (KVM/Xen/ESX/…)
Drivers
Neutron
IP Switching fabric
FC Switching fabric
Drivers
Cinder
Manila
File Storage
Block Storage
Drivers
Drivers
Keystone
AD/LDAP
Object Storage
Swift

4. CoprHD in OpenStack (Northbound)
Cinder driver features
Keystone
Horizon
Swift
Create/Delete/Expand volume
Attach/Detach volume
Create/Delete Snapshot
Create volume from volume/snapshot
FC, iSCSI, ScaleIO protocols
Consistency Groups
Nova
Cinder
Neutron
CoprHD Cinder driver
OpenStack
Not supported
CoprHD
QoS
Replication
Driver is not part of upstream (released on github)
EMC
VMAX
VNX …
IBM XIV
HDS
EMC VPLEX …

5. Cinder driver Deployment
cinder.conf
How does it work?
Allowed_backends=coprhd-fc,coprhd-iscsi
[coprhd-fc] ….
[coprhd-iscsi]
Driver uses CoprHD CLI
CLI makes REST API calls to API service
Credentials are stored in cinder.conf in plaintext (cinder issue)
Project, Tenant and Varray specified in cinder.conf
New backend entry needed for every combination
Volume Types
cinder type-create Platinum
cinder type-key set Platinum ViPR:VPOOL=“VirtualPool1”
cinder type-key set Platinum volume_backend_name=coprhd-fc
cinder type-create Gold
cinder type-key set Gold ViPR:VPOOL=“VirtualPool2”
cinder type-key set Gold volume_backend_name=coprhd-iscsi
These volume types are visible in the Horizon UI

6. CoprHD with cinder southbound
History
Needed a way to expand the support matrix
Considered various alternatives
Why cinder?
Large number of tested drivers
Why the API approach?
Considered using the python drivers directly
Not feasible due to library depedencies

7. CoprHD with cinder Southbound
Overview
CoprHD
CoprHD emulates nova – acts as a client to cinder
Uses OpenStack Block Storage API
Limited OpenStack installation (Keystone + Cinder)
OpenStack REST API
Keystone
Cinder
Cinder drivers
Advantages
OpenStack
Ability to support many arrays
Limitations
Cannot control port allocation (for export)
Volume wwn is not available
Array serial number not available
HP 3Par
IBM
SVC
NetApp …

8. Cinder Southbound -- detail
Northbound REST API (CoprHD)
Cinder REST API
API service
Cinder service
Controller
service
Cinder driver
Cinder driver
Native drivers
VMAX
VNX
Isilon
NetApp
IBM SVC …

9. Projects for community
Cinder Northbound
Add features to CoprHD driver - QoS, Replication
Submit cinder driver to OpenStack community
Cinder Southbound
Consistency Groups
VPLEX orchestration (in progress)
Manila
Manila driver

10. Q & A