> For the complete documentation index, see [llms.txt](https://docs.hardpoint.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.hardpoint.dev/guides/invar.md).
# Invar
An overview of Invar
Invar is a diskless document store which has compatibility for the Redis™ RESP wire protocol.
Invar gives you Redis™ persistence without having to manage disks. Instead it uses object storage, meaning your cloud bill scales with what you store, not what you provision. It's explicitly designed for single-writer operation and to run at fleet-scale for instance-per-tenant scenarios.
