how can add 2 vcenter in one vcenter

[baber]

Dear all

i use vcsa 6.5 and esxi 6.5

now i want to know if i want had 2 vcenter that managed byone vcenter how can do i that ?

do i had to install 2 vcsa (PSC+virtual senter server ) and install one virtual center server without PSC ?

such as attached pic

BR

Babak

[MohamadAlhousse]

Yes this is a new feature in vSphere 6.7 where embedded PSC now supports enhanced linked mode.

The difference here is you select to install both PSC and vCenter on the same VM during your deployment now (see the screenshot below).

The other method deploys two separate VMs (one for PSC and another for vCenter). This method deploys only one VM with both PSC and vCenter running on it.

Regards,

[baber]

1- Is new feature in (vSphere6.7) just useful for first (below) scenario ?

2- Do i have to use external PSC and vCenter for follow scenario ?

3- thanks your answer i understood that in vsphere 6.7 we can use ELM with one vm on siteA and one VM on siteB

but i want to know what is the difference between these modes ? is there any difference between performances for method1(each site has 2vm with difference ) and method2 (each site has one vm in vsphere6.7 vcsa and psc on one VM ?

BR

[MohamadAlhousse]

No need to go with external PSC as of vSphere 6.7. The embedded PSC deployment is the recommended choice from VMware with no difference completely from the external deployment.

[baber]

thanks

but i could not get my answers abouat quesions 1,2 in previous post would you answer those about scenario1 and scenario2 ?

BR

[baber]

in previous post you mention there is new feature in vsphere 6.7 that can run ELM between 2 vms with embeded PSC on 2sites but i did not any change in installation wizard

i want to sure if i select vcenter server with embeded platform service controller is that ok ?

choose yhis method on siteA and then choose that on siteB and during installation join that to siteA ?

Is that ok ?

[MohamadAlhousse]

Yes dear this is exactly all what needed.

Just select the same option "vCenter Server with embedded platform services controller" for site A and site B while installation, and during the configuration, select "create new sso domain" in site A, and "join existing sso domain in site B.

Hope it is clear now.

Don't forget please to like and mark this as useful if you find it helpful.

Thank you

[baber]

so thanks

can i change vcsa config after installing that ?

for example today i have install vcsa with embeded psc on siteA and also in siteB

now after one month can i change my design and use separate PSC and vcsa on each site instead of embeded PSC ?

BR

[MohamadAlhousse]

You welcome dear,

Yes, currently you can do this by installing a new external PSC controller and join it to the same SSO  domain and then repoint vCenter to the external PSC.

However, VMware is pushing towards the embedded PSC with the vCenter and are preparing a tool to merge external PSC and vCenter to migrate to the embedded scenario.

So you may not have a reason later to go from embedded to external.

[baber]

suppose that i have install vcsa 6.7 (Embedded Platform Services Controller) on siteA and also install it on siteB without ELM

now after 1 month how can create ELM between two vcsa ?

is that possible?

BR

[MohamadAlhousse]

Yes you can,

Without ELM means you have a separate SSO domain at site B. After one month you can install an external PSC at site B and join it to the same SSO domain at site A and then point vCenter at site B to the new deployed external PSC controller. This way you will have ELM again.

ELM will ease your administration of the whole environment so why not implement it from the beginning. I strongly recommend it.

Hope all your thoughts are clear now,

[baber]

so thanks

i want to implement it with 2 scenario on vsphere 6.7 :

scenario1:

Embedded Platform Services Controller

vCenter Server with an Embedded Platform Services Controller

install it on SITEA and also install that on siteB and during installation select join to exist domain

in this mode ELM is ok and work is that correct ?

scenario1:

such as previous scenario select

Embedded Platform Services Controller

vCenter Server with an Embedded Platform Services Controller

on siteA and also on siteB but during installation on siteB select new domain and don't join it to domain on SiteA

now i want to know how can run ELM between 2 sites later ?

Do i  have to renew installation or not ?

BR

[MohamadAlhousse]

Kindly find my below comments:

scenario1:

Embedded Platform Services Controller

vCenter Server with an Embedded Platform Services Controller

install it on SITEA and also install that on siteB and during installation select join to exist domain

in this mode ELM is ok and work is that correct ? Yes ELM will work fine here.

scenario2:

such as previous scenario select

Embedded Platform Services Controller

vCenter Server with an Embedded Platform Services Controller

on siteA and also on siteB but during installation on siteB select new domain and don't join it to domain on SiteA

now i want to know how can run ELM between 2 sites later ? When you don't join the SSO domain in Site A, you will not get ELM, each vCenter will be managed separately in this case with two different SSO domains.

Do i  have to renew installation or not ? Just install external PSC controller in site B and join it to site A SSO domain and then point site B vCenter to the new deployed PSC controller. This way you will have ELM again.

[baber]

so thanks but is this mode ok ?

Do i  have to renew installation or not ? Just install external PSC controller in site B and join it to site A SSO domain and then point site B vCenter to the new deployed PSC controller.

This way you will have ELM again

because in this mode one of my PSC is embeded on one site and the other is external on the other site is that recommend ?

BR

[MohamadAlhousse]

You welcome,

Technically it is fine but the recommendation is to have both site with either external or embedded. That's why i told you to configure the ELM from the beginning with the embedded PSC both sites.

You can still wait the tool that VMware is working on, so that if you want you can unify the deployment at both sites by migrating from external to embedded PSC at siteB after you consider to enable ELM again.

[baber]

pleas see attach pic i used

Embedded Platform Services Controller

vCenter Server with an Embedded Platform Services Controller

for both sides but now vcsa SITEB not show in siteA  (i restart both of them after install )

what is problem?

[MohamadAlhousse]

Please make sure full connectivity is opened between the servers of two sites with no firewall in between.

Try restarting servers at site A while keeping the one at site B on.

[baber]

so thanks

My problem solved with turn off firewall between two vcsa now can i migrate vms from vcsa1 on siteA to vcsa2 on siteB without downtime such as migrate in one vCenter ?

BR

[MohamadAlhousse]

Perfect,

You welcome dear, I told you it should be a firewall blocking that

For cross vcenter migration, Please check the below article listing all requirements for the this feature to work:

VMware Knowledge Base

Regards,

[baber]

So thanks from your help

just one question :

if i want migrate vm from vcsaA that is in SiteA to vcsaB in SiteB  all of vms on siteA and siteB have to reside on one shared storage?

BR

[MohamadAlhousse]

Yes this is true for vMotion. You can do host and storage vmotion as well from vcenter A to vcenter B between different datastores and hosts.