# Creating an RDS for Oracle replica in mounted mode
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By default, Oracle replicas are read-only. To create a replica in mounted mode, use the console, the Amazon CLI, or the RDS API.

## Console
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**To create a mounted replica from a source Oracle DB instance**

1. Sign in to the Amazon Web Services Management Console and open the Amazon RDS console at [https://console.amazonaws.cn/rds/](https://console.amazonaws.cn/rds/).

1. In the navigation pane, choose **Databases**.

1. Choose the Oracle DB instance that you want to use as the source for a mounted replica.

1. For **Actions**, choose **Create replica**. 

1. For **Replica mode**, choose **Mounted**.

1. Choose the settings that you want to use. For **DB instance identifier**, enter a name for the read replica. Adjust other settings as needed.

1. For **Regions**, choose the Region where the mounted replica will be launched. 

1. Choose your instance size and storage type. We recommend that you use the same DB instance class and storage type as the source DB instance for the read replica.

1. For **Multi-AZ deployment**, choose **Create a standby instance** to create a standby of your replica in another Availability Zone for failover support for the mounted replica. Creating your mounted replica as a Multi-AZ DB instance is independent of whether the source database is a Multi-AZ DB instance.

1. Choose the other settings that you want to use.

1. Choose **Create replica**.

In the **Databases** page, the mounted replica has the role Replica.

## Amazon CLI
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To create an Oracle replica in mounted mode, set `--replica-mode` to `mounted` in the Amazon CLI command [create-db-instance-read-replica](https://docs.amazonaws.cn/cli/latest/reference/rds/create-db-instance-read-replica.html).

**Example**  
For Linux, macOS, or Unix:  

```
aws rds create-db-instance-read-replica \
    --db-instance-identifier {{myreadreplica}} \
    --source-db-instance-identifier {{mydbinstance}} \
    --replica-mode mounted
```
For Windows:  

```
aws rds create-db-instance-read-replica ^
    --db-instance-identifier {{myreadreplica}} ^
    --source-db-instance-identifier {{mydbinstance}} ^
    --replica-mode mounted
```

To change a read-only replica to a mounted state, set `--replica-mode` to `mounted` in the Amazon CLI command [modify-db-instance](https://docs.amazonaws.cn/cli/latest/reference/rds/modify-db-instance.html). To place a mounted replica in read-only mode, set `--replica-mode` to `open-read-only`. 

## RDS API
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To create an Oracle replica in mounted mode, specify `ReplicaMode=mounted` in the RDS API operation [CreateDBInstanceReadReplica](https://docs.amazonaws.cn/AmazonRDS/latest/APIReference/API_CreateDBInstanceReadReplica.html).