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Updated October 11, 2026 Change the plan, storage, high availability or read replicas of a database as it grows. The data, address and password stay the same. A plan change restarts the database briefly; growing storage needs no restart.

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Before you start

  • A running database.
  • On monthly billing, a change that costs more goes through checkout for the rest of the current month. See Billing model.

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Change the plan

1

Open Settings

Open the database and go to Settings. Plan and storage shows the current plan.
2

Pick the new plan

Click Change plan (or Upgrade plan on a free database) and pick a plan of the same engine. CPU, memory and connection limits change; storage and data stay.
3

Confirm

  • Pay-as-you-go: click Change plan. It applies now with a short restart.
  • Monthly, costs more: click Continue to checkout and pay the difference for the rest of the month.
  • Monthly, costs less: nothing to pay; the unused part of this month goes to your account balance.
While it applies, the status shows Upgrading or Downgrading. Clients reconnect after the restart, which takes seconds on PostgreSQL.

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Grow storage

In Plan and storage, enter the new size in Storage (GB) and click Grow storage. Extra storage costs $0.15 per GB per month and applies without downtime. Storage only grows; to use less, restore into a new, smaller database. Free databases have fixed storage: upgrade to a paid plan to grow it.

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Turn high availability on or off

In High availability, turn the switch on. Raff adds a standby (a 3-node cluster for MySQL and Kafka) on separate servers that takes over automatically if the primary fails. It adds 70% of the plan price, 140% for MySQL and Kafka. Turning it off removes the standby and asks you to confirm: if the server fails, the database is down until it is back. MySQL: high availability is chosen when you create the database. A MySQL database created without it runs as one server and cannot add it later: create a new MySQL database with high availability and copy the data into it, for example with mysqldump.

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Add read replicas (PostgreSQL)

In Read replicas, choose how many. Each replica is a copy kept in sync and costs the same as the plan. Replicas protect against losing a server; they do not have their own address for read traffic yet.

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Do it from your tools

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Next steps

Plans and sizing

What each plan includes, connections and storage.

High availability and replicas

How failover works per engine.
Last modified on October 11, 2026