This question requires that you evaluate the underlined text to determine if it is correct.
When deploying SAP HANA to an Azure virtual machine, you can enable Write Accelerator to reduce the latency between the SAP application servers and the database layer.
Instructions: Review the underlined text. If it makes the statement correct, select “No change is needed”.
If the statement is incorrect, select the answer choice that makes the statement correct.
A . No change is needed
B . install the Mellanox driver
C . start the NIPING service
D . enable Accelerated Networking
Answer: D
Explanation:
To further reduce network latency between Azure VMs, we [Microsoft] recommend that you choose Azure Accelerated Networking. Use it when you deploy Azure VMs for an SAP workload, especially for the SAP application layer and the SAP DBMS layer.
Incorrect Answers:
A: Write Accelerator is a disk capability for M-Series Virtual Machines (VMs) on Premium Storage with Azure Managed Disks exclusively. As the name states, the purpose of the functionality is to improve the I/O latency of writes against Azure Premium Storage.
B: Mellanox offers a robust and full set of protocol software and driver for Linux with the ConnectX EN family cards. Designed to provide a high performance support for Enhanced Ethernet with fabric consolidation over TCP/IP based LAN applications. The driver and software in conjunction with the Industry’s leading ConnectX family of cards achieve full line rate, full duplex of up to 100Gbps performance per port.
C: To analyze network issue or measure network metrics you can test the connection using SAP’s NIPING program. You can use NIPING to analyze the network connection between any two machines running SAP software.
Reference: https://docs.microsoft.com/en-us/azure/virtual-machines/workloads/sap/dbms_guide_general