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PlzDontHateMe
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Vcenter Availability [Noob Question)

Hi All,

I'm new in VMware world, I'm trying to understand "Providing Vcenter Availability"

shortly I'm reading some sources that there some ways to provide but I'm focused in "Using Vsphere HA " with Vcenter as VM

the thing is confusing me is Vsphere need Vcenter to provide HA ( Vmotion, DRS)

then how can I provide Vcenter HA which is using "Sphere HA" if Vsphere its self need vcenter ??

Thank You,

Steve

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vThinkBeyondVM
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Agree with Andre.

vCenter is required just to configure/manage vSphere HA.

1. vSphere HA provides HA in case of  host( ESXi) failures & VM GOS failures.

2. Say you have cluster of 2 hosts (ESXi) (You need vCenter to create cluster, enable HA & configure settings)

3. Consider some VMs are running under 2 ESXi hosts.  Consider vCenter VM also running under one of hosts in the cluster.

4. If host where vCenter VM is running got failed, all the VMs including vCenter VM will be restarted on other available host.

5. Restarting will have minimal downtime for all the VMs those got restarted.

6. Due to restart of vCenter VM, your vCenter session will be over as all vservices are down for a while (due to host failure/ restart)

7. Once vCenter VM is up, again you can login to vCenter and manage your HA cluster.

8. If vCenter VM GOS fails, HA will restart the vCenter VM on the same host.

9. In case of these both failures,  HA continues to work fine without any issue. (Just manage when vcenter is up).

You also may want to read about "App HA" which is application aware solution from VMware.

Earlier, vSphere heartbeat was the product providing HA for even vCenter services. But now its End of availability.


----------------------------------------------------------------
Thanks & Regards
Vikas, VCP70, MCTS on AD, SCJP6.0, VCF, vSphere with Tanzu specialist.
https://vThinkBeyondVM.com/about
-----------------------------------------------------------------
Disclaimer: Any views or opinions expressed here are strictly my own. I am solely responsible for all content published here. Content published here is not read, reviewed or approved in advance by VMware and does not necessarily represent or reflect the views or opinions of VMware.

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a_p_
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Welcome to the Community,

HA (High Availibility in case of a host failure) works independently of the vCenter Server. vCenter Server is only required to configure it.

vMotion and DRS require vCenter Server. However, these features are used for live migrations, i.e. with the hosts still being healthy.

André

vThinkBeyondVM
VMware Employee
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Agree with Andre.

vCenter is required just to configure/manage vSphere HA.

1. vSphere HA provides HA in case of  host( ESXi) failures & VM GOS failures.

2. Say you have cluster of 2 hosts (ESXi) (You need vCenter to create cluster, enable HA & configure settings)

3. Consider some VMs are running under 2 ESXi hosts.  Consider vCenter VM also running under one of hosts in the cluster.

4. If host where vCenter VM is running got failed, all the VMs including vCenter VM will be restarted on other available host.

5. Restarting will have minimal downtime for all the VMs those got restarted.

6. Due to restart of vCenter VM, your vCenter session will be over as all vservices are down for a while (due to host failure/ restart)

7. Once vCenter VM is up, again you can login to vCenter and manage your HA cluster.

8. If vCenter VM GOS fails, HA will restart the vCenter VM on the same host.

9. In case of these both failures,  HA continues to work fine without any issue. (Just manage when vcenter is up).

You also may want to read about "App HA" which is application aware solution from VMware.

Earlier, vSphere heartbeat was the product providing HA for even vCenter services. But now its End of availability.


----------------------------------------------------------------
Thanks & Regards
Vikas, VCP70, MCTS on AD, SCJP6.0, VCF, vSphere with Tanzu specialist.
https://vThinkBeyondVM.com/about
-----------------------------------------------------------------
Disclaimer: Any views or opinions expressed here are strictly my own. I am solely responsible for all content published here. Content published here is not read, reviewed or approved in advance by VMware and does not necessarily represent or reflect the views or opinions of VMware.

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PlzDontHateMe
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Thank you guys for the answer,
your explanation is clear and helpful

Best Regards,

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