HA Question

[MCalwell]

Hi,

I understand HA require DNS to communicate between cluster members. What network will it use to communicate with the other nodes? I think the answer is the vSwitch the service console is bound to.

I recently brought down the local switch my VMotion NICs and Service Console NICs were using. This has HA to shutdown everything. I am trying to avoid this in the future.

Thanks,

Mike

[BryanMcC · Accepted solution]

You are correct... Service Console.

Help me help you by scoring points.

[GabbyIRL]

Answer is correct, Service Console is used.

so you can 1) add a second NIC to your ServiceConsole going to a different switch in Active/PAssive mode or

2) Disable HA during periods of network maintenence to prevent VM power-off,

We do both.......

[MCalwell]

Thanks Bryan. Do you know if you can setup a pNIC can be setup as a fail-over NIC if it is already bound to another vSwitch?

Mike

[BryanMcC]

I think that GabbyIRL "hit the nail on the head"... You can build redundancy using a second pNic attached to the vswif vSwicth and dont do maintenance on both switches at the same time. Also make sure that your network guys communicate any maintenace (if that you communicate with yourself) and disable HA.

I use both as well.

Help me help you by scoring points.

[GabbyIRL]

Nope, a pNIC can onle be in one 1 vSwitch

But you can add another ServiceConsole to a different i.e. Vmotion Switch and this will also be used by HA.

[MCalwell]

Thanks for the quick responses.

Have a nice holiday.

Mike

[BryanMcC]

What I mean is use two physical NICs boned to the Service Console vswitch each connecting to a different physical switch.. This works.. I have tested it.

Help me help you by scoring points.