HPE Intel E810-CQDA2 Ethernet 100Gb 2-port QSFP28 Adapter P21112-B21

HPE Intel E810-CQDA2 100Gb Dual-Port Adapter (P21112-B21)

The HPE P21112-B21 Intel E810-CQDA2 Network Adapter delivers uncompromising performance and intelligence for your data center and cloud infrastructure.⁴ Equipped with the powerful Intel E810 (Columbiaville) controller, this adapter provides two 100 Gigabit Ethernet (100GbE) ports using the QSFP28 form factor. This dual-port design is perfect for maximizing network redundancy and bandwidth density in demanding server environments.

This adapter is specifically engineered to accelerate critical applications like storage, cloud networking, and Network Function Virtualization (NFV). By utilizing advanced features like Application Device Queues (ADQ) and Dynamic Device Personalization (DDP), the Intel E810 minimizes latency and maximizes throughput for specific workloads.

Key Features & Performance Accelerators

Ideal Use Cases for Dual 100Gb Connectivity

• Virtual Machine (VM) Density: Use one 100Gb port for VM traffic and the second for high-speed storage (iSCSI, NVMe-oF).

• Software-Defined Storage (SDS): Essential for solutions like VMware vSAN or Microsoft Storage Spaces Direct, where high-speed, redundant connectivity is required between storage nodes.

• Network Function Virtualization (NFV): The DDP and ADQ features are critical for accelerating virtual switching and firewall functions, making it excellent for telecommunications and cloud edge deployments.⁷

   

Technical Deep Dive: ADQ and DDP

• Application Device Queues (ADQ): This allows specific applications to be assigned dedicated queues on the network adapter, bypassing general traffic queues.⁸ For example, a database application can be given priority, ensuring its I/O requests are handled with maximum speed and predictability (low latency).

   

• Dynamic Device Personalization (DDP): DDP provides flexibility by allowing users to program the adapter’s NVM (Non-Volatile Memory) with protocols and functions not natively supported by the card.⁹ This is key for future-proofing and optimizing performance for custom or emerging networking protocols.