If your team is storing files on individual laptops, emailing documents back and forth, or using a mix of USB drives and personal cloud accounts, you already have a storage problem, you just might not have named it yet. A NAS is often the most practical solution for small businesses at this stage.
What a NAS Is
NAS stands for Network Attached Storage. It’s a dedicated device (typically a compact box housing one or more hard drives) that connects to your network and makes its storage available to every device on that network.
Think of it as a shared drive that lives on your network rather than inside any one computer. Everyone on your team can access it from their own device, whether they’re on a Windows laptop, a Mac, or a mobile phone.
Unlike a general-purpose server, a NAS is purpose-built for storage. It runs its own lightweight operating system, requires minimal configuration to get started, and is designed to run continuously without much attention.
What a NAS Actually Does
At its most basic, a NAS provides centralised file storage. But modern NAS devices do considerably more:
- File sharing across Windows, macOS, and Linux devices simultaneously
- Automatic backups from workstations and laptops on your network
- Remote access to your files from outside the office, without relying on a third-party cloud service
- Media streaming to TVs and devices on your network
- Hosted applications some NAS platforms support running lightweight apps like project management tools, note-taking software, or surveillance camera recording
- Cloud sync synchronising or backing up to cloud storage services like Backblaze B2 or Amazon S3
For a small business, the core value is usually the first two: centralised storage and automated local backups.
NAS vs Other Storage Options
| Option | Pros | Cons |
|---|---|---|
| Individual laptops | No setup required | Files siloed, no shared access, easy to lose |
| USB/external drives | Cheap, portable | Manual, unreliable, easily lost or damaged |
| Cloud storage (Dropbox, OneDrive) | Accessible anywhere, easy setup | Ongoing subscription cost, dependent on internet, data leaves your premises |
| NAS | Centralised, fast, local, one-time hardware cost | Requires setup, physical device to maintain |
| Full server | Maximum flexibility and power | Significantly more expensive, more complex |
For most businesses with 2–20 staff, a NAS sits in the right place on this spectrum: more capable and reliable than ad hoc storage solutions, without the cost and complexity of a full server.
RAID: What It Is and What It Isn’t
Most NAS devices support RAID, a way of spreading or duplicating data across multiple drives. The most common configurations:
- RAID 1 — data is mirrored across two drives. If one drive fails, the other keeps everything intact.
- RAID 5 — data and parity information is spread across three or more drives. One drive can fail without data loss.
- RAID 6 — similar to RAID 5 but tolerates two simultaneous drive failures.
RAID protects you from drive failure. It does not protect you from accidental deletion, ransomware, fire, theft, or any other threat that affects the NAS itself. This is a critical distinction that catches many businesses out.
RAID is not a backup. It is redundancy. You still need a separate backup, ideally off-site or in the cloud. We cover this in detail in our post on backup strategy.
What to Look for When Buying
Number of drive bays. More bays means more storage capacity and more RAID options. A 2-bay unit is a reasonable starting point for a small office; 4-bay gives you more flexibility.
Processor and RAM. If you’re only sharing files, a basic processor is fine. If you plan to run applications or serve multiple users simultaneously, spec up accordingly.
Drive compatibility. Not all drives are equal for NAS use. Look for NAS-rated drives (Seagate IronWolf, WD Red) rather than standard desktop drives. These drives are designed for continuous operation and handle the vibration of a multi-drive enclosure better.
Software platforms depend on your platform and budget. A few examples are Synology’s DSM (DiskStation Manager), QNAP’s QTS are two of the more known management software. The software matters as much as the hardware, ease of setup, backup tools, and remote access are all determined by the platform.
Is It Right for Your Business?
A NAS is likely a good fit if:
- You have two or more staff who need to share and collaborate on files
- You’re currently relying on USB drives, email attachments, or personal cloud accounts for file sharing
- You want local backups of workstations without paying ongoing cloud subscription costs
- You handle sensitive data and prefer to keep it on your own hardware rather than a third-party cloud
It’s probably not the right first step if:
- Your team is fully remote with no shared office, then consider cloud storage, it may be more practical
- You’re a sole business owner, and store everything on an external drive
- You don’t have anyone to handle the initial setup and occasional maintenance