Why Migrate File Servers Today?
Many years ago, when network-attached storage (NAS) systems lacked the performance or affordability needed for business use, IT vendors would often recommend enterprise-grade rack servers or build custom server hardware to serve as file storage.
That approach made sense at the time — offering centralised storage, basic backup, and some redundancy.
But technology has moved on.
Today’s NAS systems deliver:
- Enterprise-grade performance and reliability
- Simplified setup and minimal maintenance
- Hot-swappable bays and scalable expansion
- Built-in software for backup, sync, and remote access
Migrating from a traditional server to a NAS isn’t just a hardware refresh. It’s a shift toward more sustainable, flexible, and future-ready infrastructure.
What Triggers a File Server Migration?
You may want to consider a file server migration if any of the following apply:
- Your current server has no more room for hard drives
- Storage upgrades are costly or technically difficult
- The server is primarily used as a file share or backup
- You need better redundancy, scalability, or simplified management
- Future expansion is a known requirement
This guide outlines how businesses can move from legacy file storage to a modern NAS solution without over-complicating the process.
Step 1: Clarify the Role of Your Current Server
Before rushing into upgrades, confirm the actual role of your server.
In many organisations, the server functions purely as a file repository — storing files and backups without running any applications.
If that’s the case, switching to a dedicated NAS setup can streamline storage while freeing up valuable rack space and reducing ongoing maintenance.
Step 2: Recognise the Limitations of Legacy Rack Servers
Older server setups often run into physical limits:
- No more available drive bays
- Incompatibility with newer, larger hard disks
- Firmware or controller constraints
- Expansion that requires downtime or third-party help
Once you’ve maxed out the physical server, continuing to patch it together usually becomes costlier than replacing it outright.
Step 3: Choose a Scalable NAS System
Modern 5-bay NAS devices are compact but powerful, and support large capacities without complex configuration.
A typical recommendation looks like this:
- NAS Model: 5-bay NAS that supports RAID and dual LAN ports
- Hard Disks: NAS-grade 7200rpm drives (e.g., 20TB per drive)
- RAID Setup:
- 4 disks = ~36TB usable with RAID6 (up to 2-drive failure)
- 5 disks = ~54TB usable with the same fault tolerance
Most mid-range NAS setups allow future expansion via add-on modules, making them ideal for growing teams and data needs.
Step 4: Plan for Redundancy and Backup
Redundancy is not a backup. If your NAS fails entirely, you need a second layer of protection. Consider:
- A second identical NAS as a remote or mirrored backup
- Cloud replication or cold-storage backups
- Offline encrypted storage for critical data
Match your backup plan with your risk appetite and operational needs.
Step 5: Execute the File Server Migration
With the new system in place:
- Create your shared folders and user access rules
- Migrate files during low-traffic hours or in phases
- Run file checks to ensure integrity
- Confirm user access and test backup systems
- Retire the old server only after the NAS is fully validated
This approach avoids disruption and gives your team time to adjust to the new system.
Step 6: Keep Future Growth in Mind
Unlike legacy rack servers, NAS solutions are designed to evolve with your business. Key benefits include:
- Expansion units for additional drive bays
- External drive support
- Cloud sync for offsite redundancy
- Software updates with new features and performance improvements
Planning for scale from day one reduces future headaches — and makes it easier to adapt when your data footprint grows again.
Final Thoughts: File Server Migration Should Serve You, Not the Other Way Around
A successful file server migration isn’t about copying files from point A to point B — it’s about making sure your storage solution keeps up with your business.
With a modern NAS, you gain:
- High-capacity storage that’s simple to manage
- Protection against hardware failure
- Flexibility to grow without starting over
At Outsourced Information Technology (OIT), we help finance professionals and asset managers build IT environments that reflect their real-world operations — not just theoretical use cases.
For many finance and external asset management firms, upgrading storage infrastructure is just one part of the bigger picture.
Choosing the right managed IT services also means looking beyond the hardware itself and considering the people and structures that support your technology.
Looking to upgrade your file server?
Let’s discuss how your IT setup can support your business continuity and data growth goals.
