Build the Right NAS for Small Business
This preset leans toward ECC where possible, snapshots, UPS and two-drive protection for larger arrays.
What do you mainly want your NAS to do?
Choose one primary workload. You can add secondary workloads below.
What this builder prioritizes for a business
For a business the requirements shift from capacity to continuity and recoverability, so the builder leans toward ECC memory where the platform supports it, snapshots, two-drive fault tolerance and a UPS. It sizes for the next several years rather than today, because migrating a live file server is disruptive — you want to grow into the box, not out of it.
That points toward a Synology or QNAP with ECC and a mature backup toolchain rather than the cheapest consumer unit; the guide to the best small-business NAS covers the specific models.
Snapshots are your ransomware insurance
The single best defence against ransomware is not RAID — it is frequent, retained, ideally immutable snapshots. They let you roll a share back to before an attack in minutes instead of paying, and they cost almost nothing to enable. Synology's Btrfs snapshots and QNAP's QuTS hero (ZFS) both do this well. Pair snapshots with Active Backup pulling every workstation and an off-site replica, and keep the admin interface off the public internet — most NAS ransomware arrives through an exposed port, not a clever exploit.
Uptime: ECC, RAID 6 / SHR-2 and a UPS
Three choices protect a business from the expensive failures. ECC RAM corrects memory errors before they corrupt records you are obliged to keep intact. Two-drive fault tolerance (RAID 6 or SHR-2, which the builder recommends once you have five or more drives) survives a second drive dying during the long rebuild of a large array. And a UPS keeps the NAS alive through brief outages so a power blip never corrupts a write. Use Pro-class CMR drives with a 5-year warranty for the 24/7 load.
Frequently asked questions
What makes a NAS suitable for a small business?
Continuity features over raw specs: ECC memory, frequent immutable snapshots against ransomware, two-drive fault tolerance, a UPS, and a mature backup tool like Synology's Active Backup for Business. A Synology or QNAP with ECC fits this better than the cheapest consumer box.
How do I protect a business NAS from ransomware?
Frequent, retained, ideally immutable snapshots are the best defence — they let you roll back to before the attack in minutes. Add off-site replication, keep the admin interface off the public internet, and patch promptly. RAID alone does not protect against ransomware.
Does a small business NAS need ECC RAM?
It is worth it. ECC corrects memory errors before they reach disk, preventing silent corruption in business records. The Synology Plus and QuTS hero QNAP models suited to business include ECC; most consumer boxes do not.