1. CloudStack 4.0 (Incubating)
CloudStack 4.0 is the first release as a Apache project.
Being released within the hour!
Wido den Hollander
Hugo Trippaers

2. What is CloudStack?
CloudStack is a Infrastructure-as-a-Service (IaaS) cloud orchestration platform
Build to deploy thousands of virtual machines
It is Hypervisor agnostic. Supports KVM, OVM, VMWare and XenServer

3. Why 4.0? Citrix submitted CloudStack to ASF in May 2012
4.0 brings new features
Major version change to indicate first Apache release
Licensing issues had to be resolved

4. Licensing for 4.0
Pre-4.0 repository contained non-ASL compatible software and binaries (JARs)
Apache projects only release source code
Switched to maven to resolve these dependencies

5. What brings 4.0? Inter-VLAN routing (VPC)
Network Virtualization (Nicira NVP L2)
RBD primary storage (Ceph)
Local storage for data volumes

6. Virtual Private Cloud

7. Virtual Private Cloud Multi-tier network configuration
support complex applications
finegrained network access configuration
Site-2-site VPN to link existing networks
Dedicated network offerings

8. Network Virtualization (Nicira NVP)
Integration with Nicira Network Virtualization Platform.

9. Configurable using offerings

10. Transparent integration

11. Easy troubleshooting

12. Network Virtualization (Nicira NVP)
Integrate with Nicira Network Virtualization Platform.
Transparent integration with Guest Networks
Integrated with Physical Network configuration to allow VLAN and SDN networks to co-exist
Implementation of SDN networking can be expanded with other SDN implementations
Limitations
L2 Networking only (until 4.1)
KVM not yet supported (patch pending)

13. RBD (RADOS Block Device)
Ceph is a unified open source distributed storage system
RBD is a part of the Ceph project
No SPoF! (Really, none!)
Striped in 4MB chunks over RADOS objects
RADOS is the object store of Ceph
Reliable Autonomous Distributed Object Store
Ceph scales up to PetaBytes even ExaBytes

14. Ceph

15. And with multiple VMs?
VMs are striped over objects, they probably use different disks
High parallel performance
More disks means more performance

16. Ceph

17. RBD vs NFS and iSCSI NFS and iSCSI still point to one device
Some SANs do some stuff with virtual IPs, but it still doesn't scale out
RBD scales out by just adding machines
Without downtime!

18. Local storage for data volumes
Local storage is useful for example webservers or applications who need very low disk latency
CloudStack knows two volumes: root and data
In pre-4.0 only root volumes where supported on local storage
No migration possible with local storage

19. Thanks! http://incubator.apache.org/cloudstack
#cloudstack on Freenode
Wido den Hollander and Hugo Trippaers are both CloudStack committers