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VMWare: vMotion

Hi,

1) This is related to the ESX 4.0
2) There are 10 ESX Host --> VM#1, VM#2......VM# 3
3) There is vCenter which manage the above 10 ESX Host
4) What is the vMotion?
5) How the vMotion help the above ESX Host?
6) What should we ADD to get the vMotion? (is it software or hardware?)

thanks,
tjie
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tjie
Asked:
tjie
8 Solutions
 
bill_lynchCommented:
You'll need to license the ESX hosts and VMware vCenter.

vMotion lets you move the virtual machines from host to host without any downtime to the end users.
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bill_lynchCommented:
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tjieAuthor Commented:
Is the vMotion one of the built-in software at the ESX 4?
Is it NOT a separate software?
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
VMware vSphere Availability Features

VMware vMotion - Migrate Virtual Machines with Zero Downtime
http://www.vmware.com/products/vmotion/overview.html

VMware vMotion Product Brief
http://www.vmware.com/files/pdf/VMware-VMotion-DS-EN.pdf

vMotion requires a license to activate it, what VMware software license do you have,  it also requires that all your ESX servers are connected to shared storage, e.g. SAN, NAS, iSCSI, Fibre Channel or NFS.
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GovvyCommented:
vMotion is also a pre-req for DRS (Distributed Resource Scheduler) which monitors utilization across clusters and intelligently allocates available resources among virtual machines

You will need to configure vSwitches on each physical machine for vMotion traffic (VMKernel)

Another pre-req is shared storage (SAN) connectivity between the hosts
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
A license ACTIVATES vMotion.

What license do you have? You can check if it supports vMotion, it's listed in the options.
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bill_lynchCommented:
Kind of...vCenter actually performs the magic

You'll have another windows box (for vCenter appliance if using vsphere 5) with the vCenter software on it.

You'll point your vsphere client to the vCenter server and manage the hosts from there.  

This provides a ton of extra functionality becuase it enables you to manage VMware as one big entity instead of separate ESX hosts.
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bill_lynchCommented:
but you'll need to license both the ESX hosts and the vCenter server, so it isn't cheap...
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
You also must ensure that your ESX hosts are CPU compatible, otherwise you will need to create an EVC cluster, to ensure processors between ESX hosts are compatible.

Do you have shared storage, a SAN, or NAS?
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