The Evolving Role of Network Attached Storage (NAS)

Network Attached Storage (NAS) devices have traditionally served as centralized repositories for data, offering convenient file sharing and backup solutions. However, as user needs become more sophisticated, the limitations of relying solely on a NAS for both storage and compute tasks are becoming increasingly apparent. A growing trend involves decoupling these functions, leveraging the NAS for its core strength – data storage – while offloading demanding applications and virtual machines to dedicated servers.

The Benefits of Separation: Flexibility and Performance

Separating compute from storage offers several key advantages. Primarily, it provides greater flexibility in hardware selection. Instead of being constrained by the processing power of the NAS,users can choose application servers with CPUs tailored to their specific workloads. This is particularly relevant given the ongoing debate about the CPUs used in many NAS devices. By using a separate application server,users are no longer beholden to the CPU choices of NAS manufacturers.

Furthermore, this approach can considerably improve performance. Virtual machines (VMs) and containerized applications often require ample processing power and memory.Running these workloads on a dedicated server, rather than the NAS itself, can lead to noticeable gains in responsiveness and overall system efficiency. This is especially true for resource-intensive applications like photo management software, such as imologin, which benefit from faster processing and memory access.

Practical Implementation: NFS and Data Migration

The technical implementation of this separation typically involves utilizing network file systems (NFS) to connect the application server to the NAS. This allows the server to access data stored on the NAS as if it were a local drive. The initial step involves migrating existing VMs and Docker containers to the dedicated server. Once migrated, these applications can then access the necessary data stored on the NAS via NFS.

One user, kiang, shared their experience, stating:

I have already migrated all my VMS and Docker containers to a separate system, my Synology is now only a NAS, with some basic apps.The containers and VMS use the storage of the NAS over NFS, and that works great.
kiang, online forum user

This approach allows for a streamlined workflow, where the NAS handles data storage and the application server manages the processing and execution of applications.

Power Efficiency and Cost Considerations

While adding a separate server might seem to increase power consumption, modern hardware can be surprisingly efficient. For example, a user reported using a second-hand Dell Optiplex with an Intel i7 14700 processor that idles at only 7-8W. This demonstrates that it’s possible to achieve significant performance gains without a substantial increase in energy usage.

The cost of a dedicated application server can also be offset by the increased flexibility and performance it provides. Moreover,purchasing used or refurbished hardware can be a cost-effective way to build a powerful server without breaking the bank. The ability to add a dedicated GPU via a PCIe slot further enhances the server’s capabilities, allowing for even more demanding workloads.

Looking Ahead: The Future of NAS and Application Servers

The trend of separating compute from storage is likely to continue as users demand more from their NAS devices. By leveraging the strengths of both NAS and dedicated application servers, users can create a more flexible, powerful, and efficient home or small business computing environment. This approach allows for optimized resource allocation, improved performance, and greater control over hardware selection, ultimately unlocking the full potential of network attached storage.