vSAN Health Service - Hardware compatibility - Physical NIC link speed meets requirements

Products

• VMware vSAN

Issue/Introduction

This article explains the Hardware Compatibility - Physical NIC link speed meets requirements check in the vSAN Health Service and provides details about why it might report an error.

Environment

VMware vSAN 8.0 and higher

Resolution

Q: What does the Hardware Compatibility - Physical NIC link speed meets requirements check do?

vSAN ESA recommends a minimum aggregated network link of 25Gbps (reduced to 10Gbps for vSAN 8.0 U3 and higher).
You can consider multiple NICs to achieve this minimum aggregated speed requirement. This check is to validate whether the vSAN network configuration can satisfy the minimum requirements.

Q: What does it mean when it is in an info state?

It means the current vSAN network configuration can't satisfy the minimum requirements of pNIC link speed.

Q: How does one troubleshoot and fix the info state?

Use physical NICs that meet the minimum speed requirements (25Gbps, or 10Gbps for vSAN 8.0 U3 and higher) for vSAN traffic. Once the network configuration meets the minimum requirements, this check will be cleared from the Skyline Health UI.

Additional Information

Starting in vSAN 8.0 U2, the network link speed threshold was reduced from 25Gbps to 10Gbps for select entry-level ReadyNode profiles
However, note that the threshold for the Hardware Compatibility - Physical NIC link speed meets requirements check itself in vSAN Skyline Health was lowered starting in vSAN 8.0 U3.

For more details, see Driving Down Storage Costs with Lower Hardware Requirements for vSAN.