Note: The follow sections requires going through code and study the mentioned classes.

Hypervisor

ServerResource ServerResourceBase VirtualRouterDeployer CommandWrapper

KVM

LibvirtComputingResource, KvmServerDiscoverer/LibvirtServerDiscoverer

XenServer

CitrixResourceBase, XenServerResourceNewBase, XcpServerDiscoverer

VMWare

VmwareResource VmwareServerDiscoverer VmwareHostService

How cloudstack orchestrates, programs hypervisor cmd-answers

TOs (transfer objects), service layer -> hypervisor (serverresource)

Storage

https://cwiki.apache.org/confluence/display/CLOUDSTACK/Storage+subsystem+2.0

StorageProcessor StoragePoolResource StorageSubsystemCommandHandler

NFS and Local Storage

SecondaryStorageResource LocalSecondaryStorageResource NfsSecondaryStorageResource PremiumSecondaryStorageResource SecondaryStorageDiscoverer

Focus on NFS, how SSVM+NFS works, mount/unmount/copy/delete etc, use of apache2

Case Study: Simulator

AgentRoutingResource SimulatorDiscoverer SimulatorSecondaryDiscoverer