vSAN File Services can't reach DNS on NSX segment

Products

• VMware vSAN
• VMware NSX

Issue/Introduction

• vSAN File Services are unable to communicate with DNS
• vSAN File Services are on an NSX segment

Environment

• VMware vSAN
• VMware NSX-T Data Center 3.x
• VMware NSX 4.x

Cause

vSAN File Services requires the NSX segment to have a MAC Learning profile applied. 

Resolution

1. With admin privileges, log in to an NSX Manager.
2. Select Networking->Segments->Segment Profiles.
3. Click Add Segment Profile and select MAC Discovery.
4. Name the new MAC discovery profile.
5. Enable MAC Learning.
6. Save the new profile.
7. Select Networking->Segments and find the segment with vSAN File Services.
8. Edit the profile and expand Segment Profiles.
9. Apply the new MAC Learning profile to the NSX Segment.

Additional Information

This requirement can be found in the vSAN Techdocs: Networking Considerations for vSAN File Service

NSX Techdocs: Create an NSX MAC Discovery Segment Profile