2V0-21.23 Question 77
Select 2Your organization has decided to implement VMware vSAN as the primary storage solution for a new virtualized environment. During the planning phase, you are asked to explain how vSAN handles data redundancy and availability. Which two features of vSAN ensure data redundancy and availability in case of hardware failures?
- A
Storage Policy-Based Management (SPBM)
- B
Distributed RAID (RAID-1 and RAID-5/6)
- C
Data Deduplication and Compression
- D
Failure Domains and Fault Tolerance
- E
vSAN File Services
Show answer and explanation
Correct answers: B, D
Explanation
VMware vSAN ensures data redundancy and availability using features like Distributed RAID (RAID-1 for mirroring and RAID-5/6 for parity-based redundancy) and Failure Domains, which help protect against hardware failures. While other features like SPBM and Deduplication provide important functionality, they do not directly handle data redundancy or availability.
- A. Incorrect.
Storage Policy-Based Management (SPBM) is a key feature of vSAN that allows you to define storage policies for virtual machine storage requirements, but it does not directly provide redundancy or availability.
- B. Correct.
Distributed RAID (RAID-1 and RAID-5/6) ensures data redundancy by creating multiple copies or parity of data across the cluster, protecting against hardware failures.
- C. Incorrect.
Data Deduplication and Compression optimize storage efficiency but do not directly provide redundancy or availability mechanisms.
- D. Correct.
Failure Domains and Fault Tolerance within vSAN ensure data placement and availability in cases of host or hardware failures by reducing the risk of data unavailability.
- E. Incorrect.
vSAN File Services is designed for file-based storage use cases and does not impact data redundancy or availability directly.