ChaitanyaS
Contributor
Contributor

Difference between VirtualCenter server and ESX server

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Hi,

I'm new to the VMware developement. Can anyone please explain me how ESX server differe from the VirtualCenter server?

As per my knowledge, ESX server is the one on which actual images are created and deployed whereas VirtualCenter manages the ESX servers (one at a time.) 'vSphere' has capability to manage more than one ESX servers at a time.

Is my understanding correct. Kindly answer my question.

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RahulMM
Enthusiast
Enthusiast

ESX (the latest--ESX4) is a bare metal operating system which you can install direcly on your physical hardware. It is the hypervisor layer which helps you to operate multiple VM's on a single piece of hardware. The heart of ESX is the VMkernel which does all the magic (resouce management, VM management ...and a lot). Talking about vCenter Server (Previously Virtual Center server) is a management application which you can install on a seperate physical machine ( You can even have an virtual vCenter). Once your vCenter is licensed, you can start managing the ESX servers.

There are two ways to manage ESX. One is that you can directly log in to your ESX server with root password and manage it. Else, login to the vCenter server itself, add the ESX server so that your vCenter manages it.

vCenter is like a management station from where you can manage your multiple ESX servers.

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krowczynski
Virtuoso
Virtuoso

VCenter is the Enterprise tool.

You can manage several ESX hosts with, it, create HA, DRS, create templates and so on!!

MCP, VCP3 , VCP4
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pramodupadhyay5
Enthusiast
Enthusiast

Esx server is basic platform where we create virtual machines and we use virtual center server to manage esx servers and virtual machines grapically through VI client...Vsphere is the new release of ESX which is based on cloud computing and also know as ESX4 and we use vsphere virtual center server to mange ESX4 servers and their virtual machines throug vsphere VI client....

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RahulMM
Enthusiast
Enthusiast

ESX (the latest--ESX4) is a bare metal operating system which you can install direcly on your physical hardware. It is the hypervisor layer which helps you to operate multiple VM's on a single piece of hardware. The heart of ESX is the VMkernel which does all the magic (resouce management, VM management ...and a lot). Talking about vCenter Server (Previously Virtual Center server) is a management application which you can install on a seperate physical machine ( You can even have an virtual vCenter). Once your vCenter is licensed, you can start managing the ESX servers.

There are two ways to manage ESX. One is that you can directly log in to your ESX server with root password and manage it. Else, login to the vCenter server itself, add the ESX server so that your vCenter manages it.

vCenter is like a management station from where you can manage your multiple ESX servers.

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RahulMM
Enthusiast
Enthusiast

these are the few vCenter limits....

*

vCenter Server Scalability

*

Hosts (32‐bit OS server) 200

Powered‐on virtual machines (32‐bit OS server) 2000

Registered virtual machines (32‐bit OS server) 3000

Hosts (64‐bit OS server) 300

Powered‐on virtual machines (64‐bit OS server) 3000

Registered virtual machines (64‐bit OS server) 4500

Linked vCenter Server systems 10

Hosts in Linked‐mode environment 1000

Powered‐on virtual machines in Linked‐mode environment 10000

Registered virtual machine in Linked‐mode environment 15000

Concurrent vSphere client connections (32‐bit OS server) 15

Concurrent vSphere client connections (64‐bit OS server) 30

Hosts per datacenter 100

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