CloudStack provides a viable option for private cloud deployment in China, addressing key customer concerns around stability, customization, local support and cost. The document discusses CloudStack's suitability for private vs public clouds in China and compares it to alternatives like VMware and OpenStack. It also presents a real-world case study of a large-scale CloudStack deployment for a government e-governance project virtualizing over 300 applications across multiple zones. Lessons learned include the importance of preparation, testing, network stability, backup solutions and contributing back to the CloudStack community.

1. CLOUDSTACK CHALLENGES
--FOR CHINA CUSTOMERS
Gavin Lee
gavin_lee@tcloudcomputing.com

2. About me
• Project manager in TCloud Computing, Beijing
• Apache CloudStack China User Group Initiator
• Apache CloudStack Committer
• Working experiences
–5 years embedded system
–3 years security
–2 years on cloud computing

3. http://www.tcloudcomputing.com/
About TCloud

4. Outline
• Public cloud in China
• Private cloud & CloudStack
• Private cloud customer focus
• Real case study
• CloudStack China ecosystem
• Make CloudStack success in China

5. CloudStack & Public Cloud
• We are talking about IaaS
• CloudStack is good for public cloud operation
Originally designed for public cloud
Inspired from Amazon Web Service
Has proven its success all over the world
ASL 2.0
Need a billing system (portal)
• CloudStack does not contain a portal (not open sourced)
• Still a lot of work to make portal ready for their special needs

6. Public Cloud in China

7. Public Cloud is Tough
• It’s not just about technology
• Large initial investment
• Bandwidth control
• Trustworthy
–Business
–Billing, prepaid before use
–Measurement
–Privacy

8. What about private cloud?

9. CloudStack & Private Cloud
CloudStack is also a choice for private cloud
• Maturity
• Stability
• Relatively easy to maintain
• Rich network features
• Freely customization
• Apache community

10. Private cloud customer focus
 Stability
 Customization
 Local support
 The fancy concept
 Cost

11. What they asked most?
• Virtualization & Cloud
• CloudStack vs. VMware
• CloudStack vs. OpenStack

12. Virtualization & Cloud
• Virtualization technology
• Software on top of OSes
• Infrastructure aware
• Relative small scale
• Maintenance on your own
• Expensive hardware
• Scale up for Performance tuning
• IT admin oriented
Server Virtualization Cloud(IaaS)
• Virtualization is fundamental
• Computing/Storage/Network
• Massive scale, easy operation
• Easy on administration
• Employee self-service
• Commodity hardware
• Scale out for Performance tuning
• IT admin & end user oriented

13. CloudStack vs. VMware
Domains
VM Technologies Vmware
36%
XenServer
23%
KVM
21%
HyperV
10%
Open Xen
6%
Other
4%
IT,Internet
68%
Telco
11%
Education
7%
Health Care
5%
Government
5%
Other
4%

14. Why do people choose VMware alternatives?
Never compare with feature set , stability , SLA;
There are other things need to concern:
• Cost
• Control
• Customization
• Local support

15. CloudStack vs. OpenStack
• Stability
• Network Features
• Deployment
• Easy to start
• Dependency ~
• Apache Foundation
• Visibility
• Population
• Loose couple
• Release Cycle
• Cost on start up
• OpenStack Foundation

16. Why transfer to CloudStack?
• They got in trouble on OpenStack
• They don’t have extra resources on IaaS
• It’s easy to start with CloudStack
• CloudStack works fine
• They trust Apache community

17. Real case study
• Basic info
• Vision
• E-Gov whole picture
• Network topology
• What we learnt

18. Basic info
• Private cloud, ongoing
• Government information system virtualization
• Objective
– Resource sharing for different departments
– Services improvement
– Enlarge service scope to many domains
• TCloud provides product, support & solution
– Based on CloudStack 3.0.3
– Will upgrade to CloudStack 4.0.2 soon

19. Vision

20. IaaS
IaaS
IaaS
Province
District
Town
City
 Province level for data
aggregation, sharing and backup
 City level for data
generation, switching and integration
 District & Town for data
collecting, network aggregation and
service providing
Service Centre
Service
Centre
E-Gov picture

21. Network topology (partial)
Mysql-1Management-1 Management-2 Mysql-2
Zone-1(Domain-1)
Advanced
XenServer
GuestNetwork GuestNetwork GuestNetwork
GuestNetwork
VLAN 1 :
VLAN 2 :
iSCSI/NFS
Load
Balance
Web UI : 8080
API Call : 8096
SystemVM : 8250
File Server
Template/ISO
ManageNetwork
ManageNetwork
ManageNetwork
ManageNetwork
VLAN 3 :
VLAN 4 :
VLAN 5 :
VLAN 6 :
VLAN 7 :
VLA
Zone-2(Domain-2)
Advanced
XenServer
Zone-3(Domain-3)
Advanced
XenServer
Zone-4(Domain-4)
Advanced
XenServer
Pod-2Pod-1 Pod-3

22. Current deployment
• Computing
– Supermicro 6026
– 6 ~ 10 advanced zones
– 1 pod in each zone
– 1 ~ 3 clusters in each pod
– XenServer 5.6 FP1
– Vshpere 4.1
– MySQL Active-standby
mode
– >200 hosts
– MS cluster
• Storage
– IBM NAS
– NFS/iSCSI for
Primary Storage
– NFS for secondary
storage
• Network
– Gigabytes
– Public + Guest used
1 nic
– Storage +
Management used 1
nic
– No nic bonding

23. More than 300 apps
• Public mailbox
• OA
• Report, Sign, Approval
• Document flow
• E-signature
• Web site hosting for all dept.
• Education
• Resident ID system
• …

24. What We Learnt
• Preparation
• Compatibility testing
• Stable network
• Pay attention on HA
• Staging Cluster
• Scheduled backup solution
• Contribute back to community

25. CloudStack China Ecosystem
• Many other companies are not willing to open
• Roles:
Education/SI/ISV/ISP/Health care

26. Make CloudStack success in China
• Release cycle
• Keep high quality release
• Extremely easy on enhancement
• Documentation
• Non OSS distribution
• Make noise - We need such conference

27. gavin.lxh@gmail.com
Twitter: @tcloudlee