General
What is Oracle Acceleron SmartNIC?
Oracle Acceleron SmartNIC consolidates host networking and cloud control functions that support Oracle Cloud Infrastructure (OCI) virtual cloud network services into a single device built for secure, high performance multitenant cloud environments. The suite of network software and architecture preserves OCI’s strong isolation model while helping improve throughput, latency, and operational efficiency.
How does Oracle Acceleron SmartNIC differ from prior networking with a host NIC?
A traditional NIC primarily moves packets between the host and the network. Oracle Acceleron SmartNIC also accelerates and enforces cloud virtualization and security functions that would otherwise consume host CPU resources or require separate infrastructure components.
Why did OCI combine off-box virtualization and the host NIC into Oracle Acceleron SmartNIC?
Off-box virtualization delivers strong security and isolation, but it creates bandwidth and efficiency limits because packets are effectively handled twice, and storage virtualization can’t easily use direct PCIe devices. Converging those functions into a single device helps improve efficiency and unlocks new storage and network acceleration while maintaining isolation.
What new capabilities does Oracle Acceleron SmartNIC introduce?
Oracle Acceleron SmartNIC combines cloud control and host NIC functionality into a single device, simplifying the overall architecture. Capabilities include accelerated VirtIO, hardware-backed networking over PCIe, advanced offloads, improved observability, stronger infrastructure-controlled security, and a foundation for future storage offload and remote boot capabilities.
Which workloads benefit most from Oracle Acceleron SmartNIC?
Workloads that are sensitive to latency, packet rate, or storage I/O benefit most, including large AI and machine learning training clusters, HPC, media workloads, and other high-throughput services. The design helps reduce overhead and improve bandwidth utilization.
What operational benefits does Oracle Acceleron SmartNIC enable?
Oracle Acceleron SmartNIC helps reduce hardware complexity and improve diagnostics, patching, and lifecycle management because OCI manages more of the networking and storage device implementation. It also supports easier workload integration through standardized VirtIO and NVMe interfaces without hardware-specific drivers or unnecessary networking and storage complexity.
What performance improvements does Oracle Acceleron SmartNIC deliver?
Oracle Acceleron SmartNIC is designed to improve throughput, reduce latency, and increase infrastructure efficiency by consolidating host networking and cloud control functions into a single platform. By reducing extra hops and streamlining packet handling, it helps improve bandwidth efficiency and consistency. Published Oracle observations include packet-processing improvements approaching 2X in network-centric workloads, depending on workload type, shape, and traffic patterns.
Which compute shapes support Oracle Acceleron SmartNIC?
Oracle Acceleron SmartNIC support is available with E6 Standard, E6 Dense, X12 Standard, and A4 Standard shapes. Specific availability should be confirmed in OCI documentation and the OCI console.
Is live migration supported with Oracle Acceleron SmartNIC?
Yes. Live migration is supported with accelerated VirtIO, allowing standard OCI mobility and maintenance workflows to continue without a separate networking model.
Is there an additional cost to use Oracle Acceleron SmartNIC?
No. There’s no additional cost to adopt Oracle Acceleron SmartNIC.
Is instance re-creation required to adopt Oracle Acceleron SmartNIC?
Yes. Instances must be launched or relaunched on Oracle Acceleron SmartNIC–compatible shapes. Where supported, accelerated VirtIO should be selected as the launch networking type.
Can Oracle Acceleron SmartNIC–enabled instances be managed through the OCI console, APIs, or Terraform?
Yes. Oracle Acceleron SmartNIC–enabled infrastructure is managed through standard OCI tools where support is available for the underlying compute and networking services, including the OCI console, APIs, and Terraform.
How is an instance using Oracle Acceleron SmartNIC identified?
Oracle Acceleron SmartNIC usage is identified by supported compute shapes and related configuration details in OCI. Shape-level confirmation should be validated in current OCI product documentation and the OCI console.
Networking
What is accelerated VirtIO, and why does it matter?
Accelerated VirtIO implements the VirtIO standard in programmable hardware, allowing broad driver compatibility with performance closer to direct hardware access. Accelerated VirtIO is designed to combine portability and simplicity with high throughput and low latency.
Are special drivers or libraries required?
The design goal is to use standard VirtIO drivers for broad compatibility, minimizing custom driver requirements for most environments. Vendor-native options may exist for specialized needs, but the default model is high performance with standard drivers.
Can legacy and converged NIC-based instances coexist in the same VCN?
Yes. Instances using the current network model and instances using Oracle Acceleron technology can operate in the same VCN and subnet.
Storage
How does Oracle Acceleron SmartNIC improve throughput and latency versus prior designs?
By consolidating host networking and cloud networking software into one device, packets no longer need to traverse an external link between separate boards, and the data path can be streamlined. Combined with hardware fast-path processing, this reduces overhead and improves efficiency.
What storage capabilities does Oracle Acceleron SmartNIC accelerate?
Oracle Acceleron SmartNIC can expose NVMe storage devices over PCIe to the compute instance while translating and forwarding those operations to OCI Block Storage with encryption and policy controls handled on the device. This provides a simpler attachment experience and higher I/O operations per second potential.
Why is NVMe-based attachment simpler than iSCSI in cloud environments?
NVMe attachments can appear as standard namespaces and devices to the operating system without requiring iSCSI login and configuration steps or initiator-specific handling across operating systems. Session management can be handled on Oracle Acceleron SmartNIC for greater consistency.
Security
What security principles does OCI emphasize in this design?
OCI emphasizes defense-in-depth, auditability, and simplicity, reducing attack surfaces while helping ensure that multiple independent controls must fail before isolation is compromised. This philosophy guides OCI networking design.
How does Oracle Acceleron SmartNIC relate to OCI Zero Trust Packet Routing?
Oracle Acceleron pairs hardware-accelerated networking with host-level policy enforcement concepts, such as OCI Zero Trust Packet Routing, applying least-privilege controls as early as possible.