2V0-621 · Question #197
An administrator enables High Availability (HA) on a Virtual SAN cluster. There are four vmkernel port groups with the following IP addresses assigned: Management: 192.168.12.10 vMotion: 192.168.13.10
The correct answer is C. 192.168.14.10. In a vSAN cluster, vSphere HA uses the Virtual SAN vmkernel port for its traffic rather than the management network.
Question
An administrator enables High Availability (HA) on a Virtual SAN cluster. There are four vmkernel port groups with the following IP addresses assigned:
Management: 192.168.12.10 vMotion: 192.168.13.10 Virtual SAN: 192.168.14.10 Fault TolerancE. 192.168.15.10 Which IP address will HA use for traffic?
Options
- A192.168.12.10
- B192.168.13.10
- C192.168.14.10
- D192.168.15.10
How the community answered
(23 responses)- A9% (2)
- B4% (1)
- C83% (19)
- D4% (1)
Why each option
In a vSAN cluster, vSphere HA uses the Virtual SAN vmkernel port for its traffic rather than the management network.
The management vmkernel (192.168.12.10) is used for HA heartbeats in standard clusters without vSAN, but vSAN clusters redirect HA traffic to the vSAN network.
The vMotion vmkernel (192.168.13.10) is dedicated exclusively to live migration traffic and is never used for HA heartbeat or isolation detection.
When HA is enabled on a Virtual SAN cluster, VMware requires it to use the vSAN vmkernel port (192.168.14.10) for heartbeat and isolation detection traffic. This ensures storage-aware coordination between HA and vSAN, and avoids conflicts with other vmkernel functions.
The Fault Tolerance vmkernel (192.168.15.10) is reserved for FT logging between primary and secondary VMs and plays no role in HA communication.
Concept tested: vSphere HA network selection in vSAN cluster
Source: https://docs.vmware.com/en/VMware-vSphere/6.0/com.vmware.vsphere.avail.doc/GUID-E0161CB5-BD3F-425F-A7E0-BF83B005BDBE.html
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