AMD EPYC Performance in a 1U HCI Node
The HPE SimpliVity 325 Gen11 is a 1U hyperconverged node based on the HPE ProLiant DL325 Gen11 with AMD EPYC 9004 (Genoa) processors, DDR5 memory up to 3TB, and up to 30TB raw SSD capacity — delivering full OmniStack efficiency in a compact rack footprint.
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Single-socket AMD EPYC 9004 series processors (Genoa architecture) with up to 128 cores. EPYC 9004 delivers industry-leading core density per 1U chassis, with DDR5 support and 96 PCIe 5.0 lanes — making the 325 Gen11 ideal for workloads requiring maximum vCPU count in the smallest possible footprint.
At 1U per node, the SimpliVity 325 Gen11 allows up to twice the node count in the same rack space as 2U alternatives. A standard 42U rack accommodates up to 40 SimpliVity 325 Gen11 nodes — enabling massive compute density for VDI pools, developer environments, and high-node-count HCI clusters.
Despite its compact 1U form factor, the SimpliVity 325 Gen11 runs the full OmniStack software stack — identical inline global deduplication, compression, and backup capabilities to the larger 380. No feature restrictions apply to the smaller model.
Configure with 6 or 8 SSDs (1.92TB or 3.84TB each) for up to 30TB raw per node. All-flash delivers consistent latency for mixed random read/write workloads at full cluster scale, without the performance variability of hybrid or HDD-based tiers.
The combination of high core density (128 cores), DDR5 bandwidth, and OmniStack inline deduplication (which captures massive savings from VDI golden image data) makes the 325 Gen11 the optimal SimpliVity model for VMware Horizon and Citrix virtual desktop deployments.
AMD EPYC 9004's performance-per-watt advantage over competing Intel platforms reduces power consumption per VM hosted. Combined with the 1U chassis, the 325 Gen11 minimises data centre floor space, rack units, and power draw per workload unit.
The HPE SimpliVity 325 Gen11 delivers the full SimpliVity HCI feature set in a 1U chassis powered by AMD EPYC 9004 (Genoa) processors. Released in 2023 as the latest generation of HPE's compact hyperconverged node, the 325 Gen11 targets organisations requiring high core counts, low rack footprint, and all-flash storage efficiency in a single integrated platform.
AMD EPYC 9004 (Genoa) processors provide up to 128 cores in a single socket, with DDR5 memory channels for high-bandwidth workloads. The single-socket, 1U design maximises node density — a 42U rack can host up to 40 SimpliVity 325 Gen11 nodes, compared with 20 nodes of a 2U platform. For large VDI deployments or high-density compute pools, this translates directly into CapEx and data centre space savings.
The OmniStack software stack running on the 325 Gen11 is functionally identical to that of the 380 — inline global deduplication, compression, integrated backup, fast VM recovery, and HPE InfoSight analytics all operate without compromise on the smaller platform. Customers can mix 325 and 380 nodes within the same SimpliVity federation, managing all nodes from a single VMware vCenter or HPE InfoSight console.
For VDI workloads specifically, the 325 Gen11 is particularly compelling. OmniStack deduplication captures exceptional savings on VDI environments where many desktop VMs share identical OS and application blocks. Reported deduplication ratios for large VDI pools frequently exceed the 10:1 baseline — in some cases reaching 20:1 or higher — dramatically reducing per-desktop storage cost.
High core count and OmniStack deduplication combine for cost-optimal VDI on Horizon or Citrix. More desktop VMs per node; dramatically lower per-desktop storage cost versus competing platforms.
Double the node density versus 2U alternatives. More compute and storage in the same rack footprint — critical when data centre space is constrained or expensive.
Provision hundreds of developer VMs rapidly from SimpliVity clones. OmniStack cloning is instant regardless of VM size, enabling continuous integration pipelines with on-demand full-environment provisioning.
AMD EPYC's leading performance-per-watt reduces the power budget per VM hosted. Combined with 1U density, the 325 Gen11 minimises total power consumption for large VM populations.
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