What Stratum is

Stratum is a private cloud for your own hardware. One ISO installs the operating system and the platform; the result is a multi-tenant cloud with virtual machines, private networks, block storage, load balancers, DNS and backups, shared out through organizations, projects and IAM policies. It is driven from a web console, a REST API, the stratumctl CLI and a Terraform provider. The install needs no internet access: the ISO carries the whole release.

Install shapes

Shape	Status
Single node: one machine runs everything	Supported by the installer today.
Hyperconverged cluster: three or more nodes, each running the control plane, workloads and storage	Supported by the installer: one node founds the cluster and the others join it.
Disaggregated: control plane and compute on separate machines	In design.

Choose a path

	Single node	Hyperconverged cluster
Machines	One	Three or more, from the same ISO
Survives a machine failing	No	Yes: the control plane, database and secrets store are replicated, and instances on cluster storage restart on another node
Block storage	LVM-thin pools on the node’s disks	Ceph, replicated across the nodes, and LVM-thin pools
Object storage, managed databases, Kubernetes, Auto Scaling	Not offered	Offered
Start	Install a single node	Install a cluster

Both paths use the same ISO, requirements, firmware settings and administration. Pick the path before writing the USB stick; the first screen of the installer asks which one this machine is.

What a single node runs

Compute (instances, instance types, images), networking (VPCs, subnets, security groups, floating IPs, DNS), block storage on LVM-thin pools, load balancers, backup plans, Secrets Manager, Client VPN and security posture.

Object storage, managed databases, Kubernetes and Auto Scaling need a cluster and are not offered on a single node.

Where to go next

Check the requirements. A cluster adds its own.
Download and verify the ISO.
Write a USB stick and set the firmware.
Install a single node or install a cluster.