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The ASRock Rack 2U24E-GENOA2 is a dual-socket AMD EPYC storage server with 24 front hot-swap Gen5 NVMe bays. It adds two fixed internal 2.5-inch Gen5 NVMe positions, two M.2 slots, 24 DDR5 DIMM slots and flexible PCIe Gen5 expansion in a 2U chassis.
This is an all-NVMe platform rather than a generic SATA, SAS and NVMe hybrid. Its strongest use cases are high-throughput datasets, software-defined storage, database infrastructure, model repositories, checkpoint tiers and data services that need dense PCIe Gen5 media close to substantial CPU and memory resources.
Dual-socket AMD EPYC platform
ASRock Rack specifies two socket SP5 processors with support for AMD EPYC 9005 and 9004 families, including processors with AMD 3D V-Cache technology and selected 97x4 parts. Dual CPUs provide the cores, memory channels and PCIe resources needed to drive a dense 24-drive NVMe topology.
CPU selection should follow the storage workload. Software-defined storage, compression, encryption, erasure coding, checksumming and network services can consume significant host resources. High core counts may help parallel data services, while frequency and cache can matter for database or metadata-heavy workloads. The final choice should be tested against the intended storage software rather than based only on headline core count.
Memory capacity and bandwidth
The server provides 12 DIMM slots per processor, for 24 DDR5 slots in total at one DIMM per channel. It supports DDR5 RDIMM and RDIMM-3DS. Populating the channels symmetrically gives both CPUs balanced access to memory bandwidth.
Memory sizing depends on the storage stack. Filesystem metadata, caching, deduplication, virtualisation and databases can all increase requirements. A build that merely meets the software's minimum may leave valuable NVMe performance unused. Capacity, speed and rank should be selected from ASRock Rack's current memory QVL and the chosen EPYC processor's rules.
Twenty-four front Gen5 NVMe bays
The front of the 2U24E-GENOA2 contains 24 hot-swap 2.5-inch NVMe bays, each listed with PCIe Gen5 x4 connectivity. This creates a dense local flash tier with room for performance, capacity and serviceability.
The system also includes two fixed 2.5-inch Gen5 NVMe drive positions. These can separate operating-system, metadata, journal or service functions from the front hot-swap pool when supported by the selected software design. Two internal M.2 PCIe Gen3 x4 slots provide another option for boot media.
Twenty-four bays describe physical capacity, not a guaranteed aggregate performance figure. Drive model, NAND type, endurance, thermal behaviour, firmware, PCIe topology, NUMA placement and software all affect results. Enterprise NVMe drives should be chosen for the expected read/write mix, drive writes per day, latency target and failure-handling policy.
Resilience and RAID choices
An NVMe storage design can use software RAID, distributed replication, erasure coding or a qualified hardware data-protection method. There is no single correct layout for every workload. A database mirror has different priorities from an object store, a BeeGFS target or a local AI scratch tier.
Before ordering, define usable-capacity requirements, failure domains, rebuild behaviour, spare policy and recovery objectives. Do not count the same physical bay as available to multiple storage types. This model's front bays are specifically presented as NVMe by ASRock Rack.
PCIe expansion and networking
The chassis has two flexible full-height, full-length expansion groups. Each group can operate as one PCIe Gen5 x16 slot or two Gen5 x8 slots. A further half-height, half-length Gen5 x8 position is listed. This supports high-speed network adapters, storage accelerators or other qualified I/O.
An OCP NIC 3.0 PCIe Gen5 x16 slot provides a dedicated route for production networking. Two onboard 1 GbE ports use an Intel i350 controller, and IPMI provides remote management. For a server capable of moving data across 24 Gen5 NVMe drives, 1 GbE is management-class connectivity, not the main data path.
The production network should be sized from expected throughput and client count. Depending on the workload, that may mean 100, 200, 400 or faster Ethernet or InfiniBand. Switch ports, media, multipathing, redundancy and NUMA alignment should be specified alongside the NIC rather than treated as later accessories.
Power, rack and thermal planning
ASRock Rack lists a redundant 1+1 pair of 2600 W 80 PLUS Titanium power supplies. The PSU rating sets available capacity; it is not the server's fixed operating draw. Actual consumption depends on CPU selection, memory, drive count, network adapters, fans and workload.
Twenty-four high-performance NVMe drives can also create concentrated front-of-chassis heat. Drive qualification and airflow matter, especially under sustained writes. Rack planning should confirm depth, rails, inlet temperature, cold-aisle delivery, power-feed redundancy and the service clearance required to replace front drives.
Where the 2U24E-GENOA2 fits
Suitable roles include:
- all-flash software-defined storage nodes;
- AI dataset and model repositories;
- high-speed checkpoint and scratch tiers;
- analytics and database infrastructure;
- parallel filesystem building blocks;
- virtualisation clusters needing dense local NVMe;
- data-preparation services feeding GPU compute nodes.
It is not the right choice where most capacity must use low-cost 3.5-inch HDDs, where SAS tape or legacy disk shelves are central, or where a few boot drives are the only storage requirement. Those deployments benefit from a different bay layout.
Configuration checklist
Specify the exact EPYC CPUs, a balanced 24-DIMM memory plan, front-drive quantity and model, internal boot arrangement and data-protection method. Add the required OCP or PCIe network adapter and map it to the intended switch fabric.
For clustered storage, document node count, replication or erasure coding, usable capacity, expected client traffic and rebuild targets. Include firmware alignment, drive qualification, burn-in and a performance acceptance test that reflects the real block size and read/write pattern.
Frequently asked questions
How many hot-swap drives does the 2U24E-GENOA2 support?
It has 24 front hot-swap 2.5-inch Gen5 NVMe bays.
Are the front bays SATA or SAS compatible?
ASRock Rack describes this model's front bays as PCIe Gen5 x4 NVMe. They should not be advertised as a hybrid SATA/SAS pool without separate manufacturer confirmation.
Which processors are supported?
The platform supports dual AMD EPYC 9005 and 9004 series CPUs on socket SP5, including selected 97x4 processors.
How many memory slots are available?
There are 24 DDR5 DIMM slots, twelve per processor, supporting RDIMM and RDIMM-3DS.
Does it include high-speed networking?
Two onboard 1 GbE ports are included, along with an OCP NIC 3.0 Gen5 x16 slot for a production adapter. High-speed NICs and fabric components must be selected for the deployment.
Is hardware RAID required?
Not necessarily. Many NVMe platforms use software-defined protection, replication or erasure coding. The correct method depends on the operating system, storage software and recovery objectives.
Source
Specifications were checked against the ASRock Rack 2U24E-GENOA2 product page. Final CPU, memory, drive and adapter support remains subject to the current QVL and firmware documentation.