Azure Database for PostgreSQL – Hyperscale (Citus) performance options

Compute and storage

You can select the compute and storage settings independently for worker nodes and the coordinator node in a Hyperscale (Citus) server group. Compute resources are provided as vCores, which represent the logical CPU of the underlying hardware. The storage size for provisioning refers to the capacity available to the coordinator and worker nodes in your Hyperscale (Citus) server group. The storage includes database files, temporary files, transaction logs, and the Postgres server logs. The total amount of storage you provision also defines the I/O capacity available to each worker and coordinator node.

Worker node Coordinator node
Compute, vCores 4, 8, 16, 32, 64 4, 8, 16, 32, 64
Memory per vCore, GiB 8 4
Storage size, TiB 0.5, 1, 2 0.5, 1, 2
Storage type General purpose (SSD) General purpose (SSD)
IOPS Up to 3 IOPS/GiB Up to 3 IOPS/GiB


Hyperscale (Citus) server groups are available in the following Azure regions:

  • Americas:
    • Canada Central
    • Central US
    • East US
    • East US 2
    • North Central US
    • West US 2
  • Asia Pacific:
    • Australia East
    • Japan East
    • Korea Central
    • Southeast Asia
  • Europe:
    • North Europe
    • UK South
    • West Europe

Some of these regions may not be initially activated on all Azure subscriptions. If you want to use a region from the list above and don't see it in your subscription, or if you want to use a region not on this list, open a support request.


For the most up-to-date pricing information, see the service pricing page. To see the cost for the configuration you want, the Azure portal shows the monthly cost on the Configure tab based on the options you select. If you don't have an Azure subscription, you can use the Azure pricing calculator to get an estimated price. On the Azure pricing calculator website, select Add items, expand the Databases category, and choose Azure Database for PostgreSQL – Hyperscale (Citus) to customize the options.

Next steps

Learn how to create a Hyperscale (Citus) server group in the portal.