Is it okay to add "odd" memory sizes to a VM

[xbradshr]

Is it okay to add "odd" memory sizes to a VM e.g 3 GB or 9GB. These memory sizes would not exist in physical RAM, as physical RAM is often sold in even pairs.

[mcowger]

Yup - its safe.

[Rubeck]

I would go with what Matt says: Yup...

But how would the guest OS running inside the VM feel about it?

I would check this just to be sure..

[admin]

Most guests are fine.  However, ESX(i) as a guest doesn't like some odd configurations

[continuum · Accepted solution]

I have an impression that real world values perforem slightly better
so I use values which can be pieced together from typical available dims

close to 9Gb would be 4 x 2048

feel free to call that

I would not use values which in real world would mean 1024 + 512 + 128 + 16 + 4 = 1684 .. just to pick an example