--- layout: docs page_title: In-memory storage configuration description: >- Configure Vault backend storage to use in-memory storage. --- > [!IMPORTANT] > **Documentation Update:** Product documentation, which were located in this repository under `/website`, are now located in [`hashicorp/web-unified-docs`](https://github.com/hashicorp/web-unified-docs), colocated with all other product documentation. Contributions to this content should be done in the `web-unified-docs` repo, and not this one. Changes made to `/website` content in this repo will not be reflected on the developer.hashicorp.com website. # In-memory storage configuration for Vault backend storage The In-Memory storage backend is used to persist Vault's data entirely in-memory on the same machine in which Vault is running. This is useful for development and experimentation, but use of this backend is **highly discouraged in production**. All data is lost when Vault or the machine on which it is running is restarted. - **No High Availability** – the In-Memory backend does not support high availability. - **Not Production Recommended** – the In-Memory backend is not recommended for production installations as data does not persist beyond restarts. - **HashiCorp Supported** – the In-Memory backend is officially supported by HashiCorp. ```hcl storage "inmem" {} ``` ## `inmem` parameters The In-Memory storage backend has no configuration parameters. ## `inmem` examples This example shows activating the In-Memory storage backend. ```hcl storage "inmem" {} ```