VCA 6.7 HA Cluster Networking

[thanosk_auth]

I have setup VCA in HA configuration in a test environment but I am running into the following problem:

The vCenter HA IPs are in a separate subnet with no default gateway as per instructions
but as a result I don't have ssh or :5480 access to the passive and witness nodes unless
I use the active node as a bastion host and risking not having access in an event of a
disaster scenario where the the active node becomes unresponsive etc.

Similarly those nodes don't have access to other internal services like ntp/dns etc which
might cause issues down the road.

What would be the best solution to this ?
Should I add an extra nic to all nodes that rests on a subnet with full access to my internal network ?
Should I add custom routes for services/subnets to all nodes ?

Thanks for all the suggestions in advance

[NathanosBlightc]

Hi

Based on VMware product & FAQ docs, you should consider following requirements in the vCenter HA deployment:

1. The VCHA network must be on a different subnet than the management network.

2. While VCHA is enabled, no changes can be made to the IP address/FQDN of any nodes.

3. SSH must always be enabled for re-synchronization between active and passive nodes.

4. There is no supporting for snapshot or FT on any of the VCHA nodes (until now)

5. Just a single vCenter (standard edition) license is enough.

[VivekThacker]

Hello,

Please check the below KB artilce for VCHA in different subnet.

VMware Knowledge Base

[Alex_Romeo]

Hi,

The case solved in this post reflects your problem.

VCenterSA 6.5 HA / HA interfaces in different subnets

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also from this article you can get info

https://www.starwindsoftware.com/blog/vcenter-server-high-availability-review-part-2

ARomeo