Storage virtualization is commonly used for SANs in data centers to scale out the storage resources. The common methods of storage virtualization include array-based storage virtualization. What are…

Host-based storage virtualization is implemented at the server level using software running on the host OS or HBA drivers, abstracting physical storage into logical volumes visible to applications. It is one of the three standard SAN storage virtualization methods alongside array-based and network-based.

Hypervisor-based virtualization is a form of host-based virtualization and is not recognized as a separate, distinct top-level storage virtualization method in standard SAN taxonomy.

Embedded-based storage virtualization is not a recognized standard classification in SAN storage virtualization architecture.

Switch-based virtualization is an informal term sometimes used to describe network-based virtualization; the correct and standard term used in SAN architecture is network-based, making E the proper answer.

Network-based storage virtualization operates within the SAN fabric itself, typically on intelligent switches or appliances, abstracting storage resources at the network layer without dependency on the host or array vendor. It is the third recognized standard method alongside array-based and host-based.