VMware Sizing tools

Dear Experts,
Decommissioning 2 out of 7 ESXi servers. We need to distribute VM guests from these 2 hosts to the remaining 5 ESXi machines.
Are there any sizing tools available that will help me analyse the additional memory, storage and CPU required on the remaining 5 machines to accommodate these VMs.
All machines are standalone hosts with no SAN. Thank you

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Are there too many VMs on the two about-to-go-away host servers to simply use data from vCenter to add up how much disk space, RAM and CPU the VM guests typically use? Similarly, you could estimate spare capacity on the remaining five host servers to see if the transferred guests would fit or require upgrades.

(I don't know of the tools available to do this, just asking you to provide some more information to perhaps attract the attention of a more learned expert.)
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
Yes, download and use the trial version of vCenter Operations Manager. It will use the data in vCenter Server database, and calculate usage reports, and what if reports.

Available as a free trial for 60 days.


Or you could also try VMTurbo

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Alessandro ScafariaInfrastructure Premier Field AdministratorCommented:
Before you decommission, you may use Veeam One (part of Veeam Availability Suite v8) and solve your concerns:

Read this:


Then download a trial version from Veeam website, install in a Windows based VM and follows the product guides there:


You'll be able to perform capacity report to optimize your VMs and storage resources / provisioning...this is the key for you to size correctly all the infrastructure....

I personally use Veeam One also for monitoring the backup activity and the data protection architecture.....
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