HPE P48183-B21 NS204i-u Storage Controller

The HPE P48183-B21 is the HPE NS204i-u NVMe OS boot device for HPE ProLiant Gen11 servers, a dedicated hardware solution that mirrors the operating system across two NVMe M.2 modules in a RAID 1 configuration. Rather than consuming front drive bays or relying on a single boot drive, the NS204i-u isolates the OS onto its own resilient, hot-pluggable device, freeing every data bay for workload storage and removing the boot volume as a single point of failure.

This approach has become the standard design pattern for modern ProLiant deployments. Hypervisor hosts running VMware ESXi or Hyper-V, software-defined storage nodes, and database servers all benefit from a boot layer that survives an SSD failure without downtime or rebuild drama. The P48183-B21 delivers exactly that: if one M.2 module fails, the server continues booting and running from its mirror, and the failed module can be replaced without opening the chassis thanks to the unit’s externally accessible, hot-pluggable design.

Euroland IT Store supplies the HPE P48183-B21 NS204i-u in new and refurbished condition, tested before dispatch and backed by warranty. As a trusted UK supplier of HPE hardware and enterprise server components, we support organisations building new Gen11 servers, standardising boot architecture across clusters, and replacing failed boot devices in production machines. Refurbished stock offers strong savings on multi-node projects, where a boot device per server quickly adds up, while new units remain available for customers who require them.

If you are specifying HPE ProLiant Gen11 servers for virtualisation, SDS, or general enterprise workloads, the P48183-B21 belongs on the bill of materials. Our team can confirm compatibility with your server model, advise on availability, and provide competitive quotes for single units or fleet-scale orders with UK and international delivery.

Key Features

• Genuine HPE part, SKU P48183-B21
• HPE NS204i-u NVMe OS boot device for ProLiant Gen11 servers
• Two NVMe M.2 modules in a hardware-mirrored RAID 1 pair
• Dedicated boot layer keeps all front drive bays free for data
• Hot-pluggable design allows module replacement without downtime
• Removes the OS volume as a single point of failure
• Ideal for ESXi, Hyper-V, and software-defined storage nodes
• Simplifies standardised boot architecture across server fleets
• Available new and refurbished, tested before dispatch
• Managed through standard HPE Gen11 server tooling

Compatibility

• Designed for HPE ProLiant Gen11 servers and selected Gen11 configurations across the DL and ML ranges
• Fitment depends on the server model and chosen chassis options
• Confirm your exact server SKU before ordering
• The Euroland IT Store team can validate compatibility and advise on the correct NS204i variant for your platform

Benefits

The NS204i-u addresses one of the most common and avoidable causes of server downtime: boot drive failure. By mirroring the operating system in hardware, the P48183-B21 keeps a server running through an M.2 failure, and its hot-pluggable modules mean recovery is a quick, tool-free swap rather than a rebuild from backup. For clusters, that resilience multiplies; hosts stay in service, maintenance windows shrink, and rebuild risk falls across the estate. In most Gen11 builds this boot device sits alongside a data controller such as the HPE P47789-B21 MR216i-o storage controller for pass-through designs or the cache-backed HPE P58335-B21 MR408i-o Gen11 controller for hardware RAID, completing the server’s storage architecture.

There are design wins too. Offloading the OS to a dedicated device releases front bays for revenue-generating data capacity and keeps hypervisor installs cleanly separated from workload storage, which simplifies both compliance and troubleshooting. Buying from Euroland IT Store makes the economics work at scale: tested refurbished units reduce per-node cost on larger deployments, new stock is available for strict procurement environments, and UK-held inventory with warranty support keeps both project timelines and break-fix replacements fast. With a wide selection of storage controllers available alongside it, resilient Gen11 boot architecture is achievable on almost any budget.

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