Solaris Containers (zones) No special hardware required Single OS image Sub-CPU resource granularity Shared kernel, memory, file systems (configuration, resources and management) Solaris only (excluding Linux branded zone on x86) CPUs can be shared Works on all systems Virtually unlimited partitioning (max is 8191 non-global zones) Single system patch level Most admin operations can be applied to all containers in a single operation Very little performance overhead for zone infrastructure
LDOMs Sun4v systems only Multiple OS images Multiples of CPU granularity Dedicated kernel, memory, file systems Can support other OSes CPUs can not be shared (CPUs here refers to a strand/thread) Currently available on Tx000, T5xy0 only Partitioning limited to number of CPUs Multiple and different patch and release levels possible Each LDom must be fully managed separately