1. Presenters: Shujin Wu, Taylor Cuilty, Varun Rajgopal
CoprHD
Southbound SDK
Coprhd ScaleIO Driver Report
Team Members:
Shujin Wu
Varun Rajgopal
Prathamesh Patkar
Taylor Cuilty

2. Overview
❖ What’s included in ScaleIO Driver
❖ Why do we need Southbound SDK
❖ How to write a driver
❖ How to deploy a driver
❖ What is the current status
❖ Discover Demo
❖ What’s the future plan

3. What is included
ScaleIO Driver Implementation
❖ Discovery
❖ Block Operations
❖ Volume Provisioning Operations
❖ Snapshot Operations
❖ Clone Operations
❖ Export Operations
❖ Consistency Group Operations

4. Why do we need this southbound
SDK?

5. Current Driver Approach
ScaleIO
Driver
Database
Zookeeper
Task Completer
Workflows
ScaleIO Data Models
ScaleIO Storage Devices

6. New Driver Architecture
CoprHD Infrastructure
Southbound driver SDK support Layer
ScaleIO Driver
Our Focus ^_^
Southbound SDK
Implement

7. How to write a driver
ScaleIO Driver
Discover
Registry
ScaleIO
RestClientFactory
Block Operations
ScaleIORestClient
System
Credentials
System
Credentials
SystemID
System
Credentials
Client
Handle
Request

8. How to deploy a driver
Temporary Approach :
❖ Build driver jar file
❖ Modify several configuration files to enable scaleIO driver
❖ Remove the old coprHD rpm and rebuild a new one
❖ Copy driver jar into a specific directory
❖ Add driver jar file name to controllersvc classpath
❖ Restart the coprHD service

9. Demo Time!

10. Discover
❖ Registered with ExternalCommunicationInterface.
❖ ExternalCommunicationInterface serves as an adapter for discovery requests
from controller to ScaleIO driver
❖ Routes discovery requests to ScaleIO driver.
❖ Scan provider to get list of storage systems.
❖ Discover storage system properties (storage system native id, storage system
name, ip address, firmware version, etc..).
❖ Discover storage pools.
❖ Discover storage ports.
❖ Store connection parameters to registry.

11. Future Plan?

12. Think Back
Design
Implementation
Deployment
Phase 1
Phase 2
Phase 3