TrueNAS M40 - Enterprise Storage Built for Scale
The TrueNAS M40 delivers high-capacity, high-availability enterprise storage in a 4U form factor, scaling up to 5.5 PB with expansion shelves. Built on OpenZFS and powered by dual controllers for continuous uptime, the M40 handles demanding workloads from virtualization and databases to video production and large-scale file sharing, with up to 6 GB/s throughput and flexible all-flash or hybrid configurations.
Key Specifications
| Max Capacity | 5.5 PB (with expansion shelves) |
| Max Throughput | 6 GB/s |
| Max Drives Supported | 228 |
| Max Expansion Shelves | 2 |
| Form Factor | 4U base unit (4U - 12U with shelves) |
| High Availability | Yes - Dual Active Controllers |
| Networking | 2x 10/25/40/100 GbE (optical) + 2x 10GBase-T, Fibre Channel: 4x 16 Gb |
| Storage Type | All-Flash, Hybrid, or HDD |
| File System | OpenZFS |
| Certifications | Citrix Ready, VMware Ready, Veeam Ready, Asigra Integrated |
Built for the Data Center
Extreme Scalability
Start with 24 drives in the 4U base chassis and scale to 228 drives across expansion shelves, reaching up to 5.5 PB of raw capacity. Upgrade storage non-disruptively while the system stays online.
Dual-Controller High Availability
Active/standby dual controllers ensure zero downtime. If one controller fails, the other takes over instantly with no disruption to connected clients or applications.
Flexible Networking
Supports up to 100 GbE optical connectivity alongside 10GBase-T and 16 Gb Fibre Channel, letting you integrate into any data center fabric for block, file, or object workloads.
Enterprise Data Protection
OpenZFS provides built-in checksumming, snapshots, replication, and self-healing to protect data integrity. Combined with hardware RAID and encryption, the M40 delivers defense in depth.
Why Flatiron Networks
Your Complete IT Partner
TrueNAS storage is just one piece of your infrastructure. Flatiron Networks partners with Dell, HPE, Fortinet, Palo Alto Networks, Veeam, and 20+ other vendors so we can architect and deliver a complete solution across compute, networking, security, and backup.
Full Lifecycle Services
From strategic planning and infrastructure design through hands-on deployment to 24/7 managed security monitoring, our team supports your environment at every stage. One partner, one point of contact.
Ready to Configure Your M40?
Contact Flatiron Networks for custom configuration, deployment services, and competitive pricing.