Which of the following components make up a storage system?

• A. Hardware
• B. Software
• C. Hardware, Software, and Solutions
• D. Solutions

Answer: (C)

The concept being tested is that a storage system consists of three integrated layers: physical hardware, the software that manages and accesses the stored data, and the solutions layer that covers deployment, protection, and integration with applications and services. Hardware provides the actual disks, controllers, and networking components that store data. Software offers the management, file systems, data services (like replication or snapshots), and the operating environment that makes storage usable. The solutions layer ties everything together with deployment models, backup and disaster recovery, performance optimization, and interoperability with applications and cloud services. Only when hardware, software, and solutions are combined do you get a complete, functional storage system. Choosing only hardware or only software wouldn’t deliver a usable system, and solutions alone wouldn’t provide the actual storage or management capabilities.