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Contributor
Contributor

Does Enabling VCSA HA Cause Outage?

I've looked at documentation but haven't found a clear answer.  I have a primary VCSA 6.7 that I want to enable HA on to get those benefits. However, I have not found if the process causes any sort of outage for vCenter.

I'd like to do this during a time of my choosing, but that requires a confirmation to management of no outage. If I can't give that assurance, then I'll have to schedule it during a standard outage window that is inconvenient to me.

Does anyone know? Have you performed the process and can confirm one way or the other?

TIA

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4 Replies
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VMware Employee
VMware Employee

Moderator: Thread moved to the vCenter Server area.


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Expert
Expert

I have several times enables or disabled vCenter HA in a production environment, there is no outage.

And from my experience i can say: Don't use the H5 client, use the flash client for the inital setup.

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As Raudi said, there is no downtime...

But if you want to see it by yourself, the next is the official video of the feature in a walkthough of the configuration process (you will se that there is no outage)

Enabling Basic Configuration For vCenter (HA) High Availability | vSphere - YouTube

Triple VCIX (CMA-NV-DCV) | vExpert | MCSE | CCNA
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VMware Employee
VMware Employee

VCSA HA doesn't allow for patching with no downtime, then you have to reconsider deploying it. Just enabling  it and it doesn't cause an outage .

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