Product : AppScale, Eucalyptus/Current, 4.4.5
Feature : Storage Scalability, Storage, Infrastructure Services
Content Owner:  Bhagyashri (Shri) Bhagvat
Summary
The Storage Controller (SC) and Object Storage Gateway (OSG) are molular and enable storage capacity to be dynamically allocated independent of the system.
Details
http://docs.eucalyptus.cloud/eucalyptus/4.4.5/index.html#install-guide/config_storage.html