esxi vcpu memory and sharing resources

[biggizod]

hi guys. vm has vcpu, memory, provisioned space. On existing esxi with VMs when i add new vm which of this can be shared/overlapped , for example if i have 8 vcpu and 5 of them assigned already but my new vm requires 6  vpcu , can i overlapp them and share vcpu from added vcpus ? and same thing about memory , and space ?

[nparas5]

No you cannot overcommit vCPUs, over commitment can be done only in case of Memory and Disk. But it can lead to performance issues if any resource crunch occurs.@

[theaaronstrong]

Here's a best practice for VMware 6.0 and best practice. There might be some good nuggets of information for you regarding CPU and Memory overcommit.

https://www.vmware.com/content/dam/digitalmarketing/vmware/en/pdf/techpaper/vmware-perfbest-practices-vsphere6-0-white-p…