Sizing ESX Datastore for Pagefile and Swapfile

What would be the appropiate sizing for a datastore that will contain the pagefile and swapfile of a guest VM?

Would it be 1 for 1?

Example:
10 VMs
4GB's RAM for each server

4GB pagefile + 4GB Swapfile = 8GBs x 10VMs = 80GB datastore?
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MMRNLAITAsked:
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Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
the OS internal pagefile should be equal to the memory assigned to the VM, also DO NOT forget to increase this value if you change the memory allocated to the VM.

the vSphere VSWAPnis equal to the virtual machine memory provided no memory reservations are in use.

So based on your calculations, but you also want to allow for snapshots of the VMs, if using backup software that uses snapshots for backup.

and we allow 15% to 20% extra.

But also do not forget the VM disk size for the OS.

So 80GB is your minimum.

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MMRNLAITAuthor Commented:
Thanks!
Andrew Hancock (VMware vExpert / EE MVE^2)VMware and Virtualization ConsultantCommented:
no problems
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