public void setAllocatedStorage(Integer allocatedStorage) {
        this.allocatedStorage = allocatedStorage;
    }
<p>
For all database engines except Amazon Aurora, <code>AllocatedStorage</code> specifies the allocated storage size
in gibibytes (GiB). For Aurora, <code>AllocatedStorage</code> always returns 1, because Aurora DB cluster storage
size isn't fixed, but instead automatically adjusts as needed.
</p>

@param allocatedStorage
       For all database engines except Amazon Aurora, <code>AllocatedStorage</code> specifies the allocated
       storage size in gibibytes (GiB). For Aurora, <code>AllocatedStorage</code> always returns 1, because
       Aurora DB cluster storage size isn't fixed, but instead automatically adjusts as needed.
aws-java-sdk-rds/src/main/java/com/amazonaws/services/rds/model/DBClusterAutomatedBackup.java