Plan Features
Before you install Eucalyptus , we recommend that you think about the features you plan to implement with Eucalyptus. These features are detailed in the following sections.
1 - Availability Zone Support
Eucalyptus offers the ability to create multiple local availability zones.An availability zone for AWS denotes a large subset of their cloud environment. Eucalyptus refines this definition to denote a subset of the cloud that shares a local area network. Each Eucalyptus zone has its own Cluster Controller and Storage Controller.
2 - Object Storage
Eucalyptus supports Walrus and Riak CS as its object storage backend. There is no extra planning if you use Walrus. If you use Riak CS, you can use a single Riak CS cluster for several Eucalyptus clouds. Basho (the vendor of RiakCS) recommends five nodes for each Riak CS cluster. This also means that you have to set up and configure a load balancer between the Riak CS nodes and the object storage gateway (OSG).