要使用AlwaysOn可用性组存储，需要先创建一个可用性组和一个或多个可用性组副本。下面是一个示例代码，演示如何使用Transact-SQL创建可用性组和副本。

1. 创建可用性组：

CREATE AVAILABILITY GROUP MyAvailabilityGroup
WITH (AUTOMATED_BACKUP_PREFERENCE = SECONDARY)
FOR REPLICA ON
   'Replica1' WITH (
      ENDPOINT_URL = 'TCP://Replica1.contoso.com:5022',
      AVAILABILITY_MODE = SYNCHRONOUS_COMMIT,
      FAILOVER_MODE = AUTOMATIC,
      SEEDING_MODE = AUTOMATIC),
   'Replica2' WITH (
      ENDPOINT_URL = 'TCP://Replica2.contoso.com:5022',
      AVAILABILITY_MODE = SYNCHRONOUS_COMMIT,
      FAILOVER_MODE = AUTOMATIC,
      SEEDING_MODE = AUTOMATIC);

2. 添加数据库到可用性组：

ALTER AVAILABILITY GROUP MyAvailabilityGroup
ADD DATABASE MyDatabase;

3. 创建可用性组副本：

ALTER AVAILABILITY GROUP MyAvailabilityGroup
ADD REPLICA ON
   'Replica3' WITH (
      ENDPOINT_URL = 'TCP://Replica3.contoso.com:5022',
      AVAILABILITY_MODE = ASYNCHRONOUS_COMMIT,
      FAILOVER_MODE = MANUAL,
      SEEDING_MODE = MANUAL);

4. 启用AlwaysOn可用性组：

ALTER AVAILABILITY GROUP MyAvailabilityGroup
JOIN;

以上代码演示了如何创建一个包含多个副本的AlwaysOn可用性组存储。注意，这只是一个示例，并且需要根据实际环境进行修改和调整。