Designing a distributed system using Erlang requires a few key components. First, the system must be designed to be fault-tolerant, meaning that it should be able to handle node failures without compromising the system's integrity. To achieve this, the system should be designed to use the Erlang/OTP framework, which provides a set of libraries and tools for building distributed, fault-tolerant systems.

The system should also be designed to use the Erlang/OTP distributed programming model, which allows for the distribution of processes across multiple nodes. This model allows for the system to be distributed across multiple nodes, while still maintaining a single logical view of the system.

The system should also be designed to use the Erlang/OTP message-passing model, which allows for the asynchronous communication between processes. This model allows for the system to be distributed across multiple nodes, while still maintaining a single logical view of the system.

Finally, the system should be designed to use the Erlang/OTP distributed database model, which allows for the distribution of data across multiple nodes. This model allows for the system to be distributed across multiple nodes, while still maintaining a single logical view of the data.

By using the Erlang/OTP framework, the system can be designed to be fault-tolerant, distributed, and asynchronous. This will allow for the system to be highly available and resilient to node failures.