Scaling up broker storage - Amazon Managed Streaming for Apache Kafka

Scaling up broker storage

You can increase the amount of EBS storage per broker. You can't decrease the storage.

Storage volumes remain available during this scaling-up operation.


When storage is scaled for an MSK cluster, the additional storage is made available right away. However, the cluster requires a cool-down period after every storage scaling event. Amazon MSK uses this cool-down period to optimize the cluster before it can be scaled again. This period can range from a minimum of 6 hours to over 24 hours, depending on the cluster’s storage size and utilization and on traffic. This is applicable for both auto scaling events and manual scaling using the UpdateBrokerStorage operation. For information about right-sizing your storage, see Right-size your cluster.