# Enable and disable tiered storage on an existing Amazon MSK topic
<a name="msk-enable-disable-topic-tiered-storage-cli"></a>

These sections cover how to enable and disable tiered storage on a topic that you've already created. To create a new cluster and topic with tiered storage enabled, see [Creating a cluster with tiered storage using the AWS Management Console](https://docs.aws.amazon.com//msk/latest/developerguide/msk-create-cluster-tiered-storage-console).

## Enabling tiered storage on an existing Amazon MSK topic
<a name="msk-enable-topic-tiered-storage-cli"></a>

To enable tiered storage on an existing topic, use the `alter` command syntax in the following example. When you enable tiered storage on an already existing topic, you aren't restricted to a certain Apache Kafka client version.

```
bin/kafka-configs.sh --bootstrap-server $bsrv --alter --entity-type topics --entity-name msk-ts-topic --add-config 'remote.storage.enable=true, local.retention.ms=604800000, retention.ms=15550000000'
```

## Disable tiered storage on an existing Amazon MSK topic
<a name="msk-disable-topic-tiered-storage-cli"></a>

To disable tiered storage on an existing topic, use the `alter` command syntax in the same order as when you enable tiered storage.

```
bin/kafka-configs.sh --bootstrap-server $bs --alter --entity-type topics --entity-name MSKTutorialTopic --add-config 'remote.log.msk.disable.policy=Delete, remote.storage.enable=false'
```

**Note**  
When you disable tiered storage, you completely delete the topic data in tiered storage. Apache Kafka retains primary storage data , but it still applies the primary retention rules based on `local.retention.ms`. After you disable tiered storage on a topic, you can't re-enable it. If you want to disable tiered storage on an existing topic, you aren't restricted to a certain Apache Kafka client version.