2V0-21.23 Question 17
Single answerAn administrator is configuring a vSphere environment with multiple ESXi hosts and a SAN storage array. They want to optimize storage operations such as VM cloning, zeroing out disk blocks, and hardware-assisted locking to reduce latency and offload tasks to the storage array. Which advanced storage configuration feature should they ensure is enabled and supported by their storage array?
- A
vSphere High Availability (HA)
- B
vStorage APIs for Array Integration (VAAI)
- C
vSphere Distributed Resource Scheduler (DRS)
- D
VMware vSAN
Show answer and explanation
Correct answer: B
Explanation
vStorage APIs for Array Integration (VAAI) is a critical feature for optimizing storage operations in environments with compatible storage arrays. By offloading tasks such as VM cloning, zeroing, and locking to the storage hardware, VAAI reduces CPU and memory usage on ESXi hosts and minimizes storage operation latency. This ensures higher performance and efficiency in the virtualized data center.
- A. Incorrect.
vSphere High Availability (HA) is used for ensuring virtual machine availability in case of host failures but does not optimize storage operations or offload tasks to storage arrays.
- B. Correct.
vStorage APIs for Array Integration (VAAI) is specifically designed to offload certain storage operations like cloning, zeroing, and locking to compatible storage arrays, improving performance and reducing latency.
- C. Incorrect.
vSphere Distributed Resource Scheduler (DRS) is used for balancing workloads across hosts in a cluster, but it does not provide advanced storage optimization or offloading features.
- D. Incorrect.
VMware vSAN is a software-defined storage solution that aggregates local storage across hosts, but it is not designed to integrate directly with external storage arrays for the purposes described.