2V0-21.23 Question 28
Select 2A company is in the process of designing its virtual infrastructure to support a mission-critical database application with specific performance and hardware requirements. The application demands direct access to a SAN LUN for low latency and high IOPS, while another requirement is to leverage high-speed storage with persistent memory features. Which technologies should the company select to meet these requirements?
- A
Raw Device Mapping (RDM)
- B
Persistent Memory (PMem)
- C
NVMe over Fabrics (NVMe-oF)
- D
Remote Direct Memory Access (RDMA) with iSER
- E
Traditional VMFS-based Datastore
Show answer and explanation
Correct answers: A, B
Explanation
To meet the application's requirements, Raw Device Mapping (RDM) provides direct SAN LUN access for low latency and high IOPS, while Persistent Memory (PMem) delivers high-speed persistent storage. Together, these technologies ensure the performance and hardware-specific needs of the mission-critical database application are met.
- A. Correct.
RDM is suitable for providing direct access to a SAN LUN, enabling low-latency and high IOPS, which aligns with the mission-critical database application's requirements for direct hardware access.
- B. Correct.
Persistent Memory (PMem) supports high-speed storage with persistent memory features, addressing the application's need for fast and reliable storage.
- C. Incorrect.
NVMe over Fabrics (NVMe-oF) is a high-performance storage protocol, but it is not explicitly mentioned as a requirement for this particular scenario.
- D. Incorrect.
RDMA with iSER enables high-speed network storage access, but it is not directly applicable to the use case described in the scenario.
- E. Incorrect.
Traditional VMFS-based Datastores do not provide the direct SAN LUN access or the persistent memory features required by the application.