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Learn about vCSA before installation. To put it simply, vCSA is a host that centrally manages esxi hosts in an enterprise. This is very unprofessional. Here are some materials I found on the Internet, describing the characteristics, advantages and disadvantages of vCenter Server and vCSA. Let's take a look:

Both vCenter Server and vCenter Server Virtual Appliance (vCSA) can be applied to centralized management of enterprise vSphere deployments. Although the functionality is the same, the installation process is different and the same features are not fully supported.

For VMware applications, there is no clear conclusion as to which option is better. But by fully understanding the pros and cons of vCenter Server and vCSA, decisions can be made based on familiarity with the product.

Limitations of vCenter Server Virtual Appliance

VMware vCenter Server Virtual Appliance is installed on a SUSE Linux customized version of the VMware enterprise server and is a free version for users with vSphere certificates. Compared to the IBM DB2 database previously used, the PostgreSQL database has been used since vCSA 5.0.1. VCSA only supports PostgreSQL databases, so if Microsoft SQL Server or IBM DB2 can be better integrated into your infrastructure, then vCSA is not the best choice.

VCSA does not yet support Linked mode. The Linked pattern can link multiple vCenter Server instances together to manage large-scale and complex environments. A vCenter Server instance can only manage up to 300 hosts and 3000 virtual machines, while in linked mode, you can manage up to 1000 hosts and 10000 virtual machines by linking 10 vCenter Server instances. This setting also allows administrative roles to be defined globally and to search for items in multiple vCenter Server instances.

In addition, vCSA does not support IPv6, although this feature is not as widely used as the linked pattern. Even if the application runs on the highest version of SUSE Linux that supports IPv6 by default, it still does not provide IPv6 functionality.

VMware vCenter Server vs. vCSA: installation process

After learning about the features that vCSA does not support, you may be inclined to install the full version of vCenter Server. However, it is easier to install vCSA than to install the full version.

By downloading. VMDK and. The OVF file to your local hard drive begins the installation process. Then, on the vSphere client, to deploy vCSA, simply select deploy OVF template from the file menu.

The full version of vCenter Server can support a wide variety of databases, Linked schemas and IPv6, but requires a longer installation process and more prerequisites. First, you need to install the 64-bit version of Windows Server 2008 R2, which contains supported database software, such as Microsoft SQL Server Express. There are other prerequisites, such as Microsoft. NET 3.5 SP1 Framework or Windows Installer version 4.5. Finally, you need to install vCenter Server on a physical or virtual server.

Summary

If you are looking for an easy way to start using vCenter Server, you can choose a virtual application directly. Even if you are not an Linux expert, you can manage vCSA on Linux. After deployment, the application will provide you with a simple access interface that guides you through all the configuration steps.

On the other hand, you can use vCenter Server's Linked mode to manage a larger VMware environment. As a result, the size of the data center will be a decisive factor in the choice of fully installed or virtual applications.

With all that is said above, let's install vCSA next.

Download address https://my.vmware.com/cn/web/vmware/details?downloadGroup=VC600B&productId=501

Let's take a look at the installation.

Open the VMware-VCSA-all-6.0.0-2562643.iso file, which I opened here using a CD-ROM drive. You can also unzip the file and then open it. Double-click "VMware-ClientIntegrationPlugin-6.0.0" to install the plug-in

If your Google browser is open, please close it first

There is nothing else to pay attention to, because I have already installed it, so I will not repeat it here, just go on to the next step.

Open this

Ip, username and password of the ESXI host

The domain name and ip address should be resolved on Dns.

After the installation, the esxi host is self-guided and imported.

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