assembly-storage.adoc

Kafka and Zookeeper storage

As stateful applications, Kafka and Zookeeper need to store data on disk. {ProductName} supports three different types of storage for this data: ephemeral, persistent, and JBOD (Just a Bunch of Disks) storage.

Note	JBOD storage is only supported for Kafka, not for Zookeeper.

When configuring a Kafka resource, you can specify the type of storage used by the Kafka broker and its corresponding Zookeeper node. You configure the storage type using the storage property in the following resources:

• Kafka.spec.kafka

• Kafka.spec.zookeeper

The storage type is configured in the type field.

Warning

The storage type cannot be changed after a Kafka cluster is deployed.

ref-storage-ephemeral.adoc

ref-storage-persistent.adoc

ref-storage-jbod.adoc

Additional resources

• For more information about ephemeral storage, see ephemeral storage schema reference.

• For more information about persistent storage, see persistent storage schema reference.

• For more information about JBOD storage, see JBOD schema reference.

• For more information about the schema for Kafka, see Kafka schema reference.