# Can I Create a Single Server Using the Over-Allocated Resources? ## Problem A physical host has 1000 GB RAM and the allocation ratio has been set to 1.5. Can we create a single instance that uses these over-committed resources entirely (1500 GB)? ## Environment * Platform9 Managed OpenStack - All versions * Nova ## Answer For overcommitment, a host needs to be able to run a single instance at full capacity if needed which essentially means if the host has 1 GB RAM with an allocation ratio of 10, you can run 10 VMs with 1GB each, but not a single VM with 10GB. This is because that single VM can never really use the overcommitted 10GB on the physical host but the 10 VMs could always time share a host at their max capacity, even though not simultaneously. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://platform9.com/kb/pmo/frequently-asked-questions/can-i-create-a-single-server-using-the-over-allocated-resources.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.