2V0-21.23 Question 25
Select 3A company is planning to implement VMware vSAN for its virtualized environment and is comparing it with VMware Virtual Volumes (vVOLs). The IT team wants to understand how vSAN handles storage compared to vVOLs. Which of the following is true regarding the storage architecture of VMware vSAN and VMware vVOLs?
- A
vSAN aggregates local storage devices in a cluster to create a distributed datastore.
- B
vVOLs use a policy-based management approach to map VMs directly to SAN or NAS storage.
- C
vSAN requires external storage arrays to function.
- D
vVOLs operate independently of an external array and rely fully on hypervisor-based storage.
- E
vSAN is integrated into the hypervisor and does not require a separate storage appliance.
Show answer and explanation
Correct answers: A, B, E
Explanation
VMware vSAN and VMware vVOLs provide different approaches to storage in virtualized environments. vSAN creates a distributed datastore by pooling local drives of ESXi hosts, providing hypervisor-native storage without external arrays. On the other hand, vVOLs integrate directly with external storage arrays and leverage policy-driven management to simplify VM storage allocation. Understanding these differences is critical for designing storage solutions with VMware technologies.
- A. Correct.
Correct: vSAN aggregates local storage devices from the hosts in a cluster, creating a distributed shared datastore managed by the hypervisor.
- B. Correct.
Correct: VMware vVOLs use a policy-driven storage management approach, allowing VMs to connect directly to SAN or NAS storage systems.
- C. Incorrect.
Incorrect: vSAN does not require external storage arrays. It uses storage devices local to the ESXi hosts in the cluster.
- D. Incorrect.
Incorrect: vVOLs depend on external storage arrays as they abstract storage from these arrays and allow direct VM-to-array interaction. They do not operate independently of external arrays.
- E. Correct.
Correct: VMware vSAN is deeply integrated with the ESXi hypervisor and does not require any external storage appliance to function.