Explanation
Step1 - Write I/O is received from the production compute system into cache of source and placed in queue Step 2 - Source storage system sends an acknowledgement back to the production compute system Step 3 - Write I/O is transmitted to the cache of the target storage Step 4 - Receipt acknowledgement is provided by target storage back to the cache of the source

Explanation
An extensible architecture enables integrating multivendor resources, and external management interfaces and applications into the SDI environment by using APIs

Explanation
The SDS controller discovers various types of physical storage systems available in a data center. It is to gather data about the components and bring them under its control and management. Data collected during the discovery includes information on the storage pools and the storage ports for each storage system.