The VMware vCSA upgrade is done in 2 steps:

• The vCSA deployment
• The data migration from source to destination

Before beginning you need the following:

• A new name for the new VM or rename the old vCenter VM Name with _old prefix for example
• A temporary IP address
• Enough storage for the appliance
• Enough compute resources to run the appliance

Step 1: Deploy a new appliance

Once you have mounted the ISO, open <ISO Drive Letter>\vcsa-ui-installer\win32\installer.exe. Then choose Upgrade.

The next screen introduces the steps to follow to upgrade your appliance from vCSA 5.5 or 6.0 to vCSA 6.5u1. Just click on Next.

Once the next screen, just accept the license agreement and lick on Next.

In the next window, specify the vCenter FQDN or IP address and password to connect to. Then specify the ESXi name which hosts the vCenter Appliance. I specify the ESXi instead of the vCenter because I want to upgrade this vCenter server. When the upgrade will occur, the current vCSA will be shutdown.

Then choose the deployment type and click on next.

Then specify an ESXi or vCenter name. Because I migrate the only one vCenter I have, I choose to specify the ESXi name and credentials to connect to.

Next choose a destination VM folder and click on Next.

Then choose an ESXi in the list.

Next specify a VM name and the root password for the target vCSA.

In the next window, regarding your needs, choose the right appliance size. In the table, you have information about supported number of hosts and VMs.

Next choose the datastore where you want to store the vCSA VM file. You can also deploy the appliance in thin provisioning.

Next specify the temporary IP address. This IP is used only during the data migration step.

In the next screen, you can review the settings you apply previously. When you have reviewed the settings just click on Finish to run the vCSA deployment.

Once the appliance deployment is finished, you can click on continue to process the step 2.

Step 2: Migrate configuration for vCSA 5.5 to vCSA 6.5

The next screen introduces the step2 which consists of copying data from source vCenter Server Appliance to the new appliance.

The next step runs some verifications to check if the configuration can be migrated. For example, in the below screenshot is indicated that a plugin cannot be migrated and to check if DRS is not enabled on the ESXi which host the new appliance. If the DRS is enabled, the new appliance can be migrated and so the wizard will be not able to contact this VM anymore (we have specified the ESXi in step 1).

In the screen, the wizard asks you which data you want to migrate.

Then you can choose to join the CEIP or not.

Next you can review the settings before run the data copies. To run the migration, just click on Finish.

Once the migration is finished, you can connect to the vCenter by using the web client and enjoy the new web interface (either flash or html). The source appliance should be shutdown.

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• A Software to be deployed on a Windows Server (physical or virtual)
• A virtual appliance that is based on Linux (vCenter Server Appliance: VCSA)

Since vSphere 6, the VCSA can manage more hosts and more VM and is more robust and scalable. With vSphere 6.5, the VCSA support the simplified native vCenter High Availability which is available only for the VCSA (not for Windows).

The below table introduces the Windows versus VCSA scalability (vSphere 6.0 information):

As you can see, there is no advantage anymore to use Windows vCenter. Moreover, with vSphere 6.5, the update manager is integrated to vCenter. You don’t need Windows for that anymore. The VCSA is free where you have to pay a license for the Windows vCenter. The only con of VCSA is that it is a black box.

In this topic, I’ll show you how to deploy a standalone VCSA 6.5 from a client computer.

Requirements

To deploy your VCSA 6.5 you need the following:

• A running ESXi host reachable from the network
• The ISO of VCSA 6.5 (you can download it from here)
• At least 4GB on your host and 20GB on a datastore

Step 1: Deploy the VCSA on an ESXi

Once you have downloaded the VCSA 6.5 ISO, you can run vcsa-ui-installer\win32\installer.exe

When you have run the installer, you can see that you have several options:

• Install: to run the VCSA installation (I choose this option)
• Upgrade: if you want to upgrade an existing VCSA to 6.5 version
• Migrate: to migrate a Windows vCenter Server to vCenter Server Appliance
• Restore: to recover the VCSA from a previous backup

In the next screen, the wizard explains you there is two steps to deploy the VCSA. In the first step, we will deploy the appliance and in the second one, we will configure it.

Next you have to accept license agreement and click on next.

Then choose the deployment model. You can select to embed the Platform Services Controller (PSC) with the vCenter Server. Or you can separate the role as explain in the below schema. PSC manages SSO, certificate stores, licensing service and so on. The second deployment model is recommended when you want share these services between multiple vCenter Server instances. For this example, I choose the first one and I click on next.

Then specify the ESXi or the vCenter Server where the appliance will be deployed. I specify a running ESXi, the management port and the root credential.

Next I specify the VM Name and the root password for the VCSA.

In the next screen, you can choose the appliance size. More the virtual infrastructure is huge, more the VCSA needs vCPU, RAM and storage.

Then choose a datastore where the VM will be deployed and click on next.

In the next screen, specify the network configuration of the VCSA. If you specify a FQDN in system name, be sure that the entry exists (with the right IP address) in the DNS server. Otherwise you will have an error message.

To run the appliance deployment, click on finish in the below screen.

While the deployment occurs, a progress bar will show you where you are in the deployment process.

If you connect to the ESXi from the web interface, you can see that the VM is well deployed.

When the deployment is completed, you should have the below screen.

Click on continue to process in the step 2.

Step 2: Configure the appliance

In the step 2, we will configure the appliance. In the first screen, just click on next.

Then, specify some NTP server to synchronize the time.

In the next screen, provide SSO information to manage your vSphere infrastructure.

Next you can accept to join the VMWare’s Customer Experience Improvement Program (CEIP) or not.

To finish, click on finish to run the configuration.

During the configuration, you should have a progress bar to inform you where you are in the process.

Once the configuration is finished, you should have the below screen.

You can now connect to the vSphere Web Client. The URL is indicated in the above screenshot.

Appliance monitoring

The VCSA provides an interface for the monitoring. You can connect from https://<SystemName>:5480. You can use root credential.

As you can see in the below screenshot, you can have the overall health status from this interface.

You can also monitor the CPU and memory of the appliance.

And you can also update the appliance from this interface.

Conclusion

Since vSphere 6.0, the VCSA is really highlighted by VMware. Moreover, since vSphere 6.5, the Update Manager (VUM) is integrated in vCenter. In my point of view there is no advantage to use Windows vCenter Server anymore compared to VCSA. As you have seen in this topic, the VCSA deployment is really turnkey and easy.

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