AttentionThis page documents an earlier version. Go to the latest (v2.3) version.
YugabyteDB creates a
universe with a bunch of instances (VMs, pods, machines etc provided by IaaS) logically grouped together to form one logical distributed database. Each such universe can be made up of one or more clusters. These are comprised of one
Primary cluster and zero or more
Read Replica clusters. All instances belonging to a cluster run on the same type of cloud provider instance type.