P47621-001 HPE SR308i-o Gen11 x8 Lanes 2GB Cache OCP Storage Controller

HPE P47621-001 SR308i-o Gen11 OCP Storage Controller

The HPE P47621-001 SR308i-o Gen11 storage controller is engineered to deliver dependable data management, streamlined connectivity, and optimized throughput for modern HPE ProLiant Gen11 server platforms. Designed as a plug-in controller card with OCP architecture, this solution supports enterprise workloads that require consistent performance, scalable storage expansion, and efficient data handling across internal drive configurations.

General Specifications and Product Details

• Manufacturer: HPE
• Model Series: SR308i-o Gen11
• Part Number: P47621-001
• Product Category: OCP Storage Controller Card

Physical Design and Form Factor

• Form Factor: Plug-in Card
• Installation Type: OCP slot integration
• Design Focus: Space-saving and server-optimized layout

Technical Information and Performance Capabilities

• Host Interface: PCI Express x8
• Lane Configuration: x8 lanes for enhanced throughput
• Optimized Data Path: Reduced bottlenecks for internal storage

Internal Ports 

• Total Ports: 8 internal lanes
• Drive Support: Multiple internal storage devices
• Use Case: Internal drive arrays and data volumes

Integrated 2GB Cache Memory

• Cache Size: 2GB
• Function: Accelerated data access and buffering
• Benefit: Improved I/O efficiency

Storage Controller Card Classification

• Product Type: Storage Controller Card
• Primary Role: Internal storage management
• Deployment: Enterprise and data center servers

Enterprise-Class OCP Storage Controller Architecture

The HPE P47621-001 SR308i-o Gen11 x8 Lanes 2GB Cache OCP Storage Controller belongs to a specialized category of enterprise storage controllers designed specifically for modern HPE ProLiant Gen11 server platforms. This category focuses on OCP-based storage controllers that integrate tightly with server system boards, delivering optimized throughput, reduced latency, and efficient utilization of PCIe resources. The SR308i-o Gen11 controller leverages the Open Compute Project modular design philosophy, ensuring compatibility, scalability, and streamlined system integration within dense data center environments.

Open Compute Project Integration

OCP storage controllers are engineered to minimize physical footprint while maximizing performance and power efficiency. The SR308i-o Gen11 utilizes the OCP 3.0 interface, allowing direct integration with the server motherboard rather than consuming a traditional PCI-Express slot. This design enhances airflow, reduces cable clutter, and enables improved thermal management across high-density rack deployments. As part of this category, the controller supports advanced signal integrity and power delivery standards required for next-generation enterprise servers.

PCIe Gen4 x8 Lane Configuration

The controller operates over an x8 lane PCIe Gen4 interface, providing substantial bandwidth to handle intensive storage workloads. This configuration ensures that connected drives can operate at optimal speeds without bottlenecks, making the category suitable for virtualization platforms, database servers, and transactional workloads. PCIe Gen4 support also future-proofs infrastructure investments by enabling higher throughput compared to earlier PCIe generations.

Controller Processing and Cache Design

At the core of the HPE SR308i-o Gen11 category is a dedicated storage processing engine designed to offload I/O operations from the host CPU. This architecture allows servers to maintain high compute efficiency even during heavy storage access. The inclusion of onboard cache memory further enhances data handling efficiency, ensuring consistent performance across mixed workloads.

2GB Integrated Cache Memory

The 2GB cache embedded within the SR308i-o Gen11 controller plays a critical role in accelerating read and write operations. This cache acts as a buffer between the server processor and attached storage devices, reducing latency and improving throughput. In enterprise environments where data integrity and performance consistency are essential, the cache enables advanced write-back and read-ahead algorithms that enhance overall system responsiveness.

Data Protection and Cache Management

Within this controller category, cache management technologies are engineered to maintain data integrity even during unexpected power events. The SR308i-o Gen11 supports sophisticated cache protection mechanisms that ensure data residing in cache is preserved and committed safely to storage. This design characteristic is essential for mission-critical applications where data loss or corruption is unacceptable.

Performance Optimization Through Intelligent Caching

Intelligent caching algorithms dynamically adapt to workload patterns, prioritizing frequently accessed data and optimizing sequential and random I/O operations. This capability allows the controller category to deliver predictable performance in environments with fluctuating access patterns, such as private clouds and enterprise resource planning systems.

RAID Functionality and Storage Management Capabilities

The HPE SR308i-o Gen11 storage controller category emphasizes robust RAID functionality tailored for enterprise reliability and performance. RAID support enables data redundancy, fault tolerance, and enhanced read performance, making this category suitable for critical business workloads that demand high availability.

RAID Levels

Controllers in this category are designed to support a range of RAID configurations, allowing administrators to balance performance, capacity, and data protection. The SR308i-o Gen11 supports commonly deployed RAID levels that address different enterprise requirements, from performance-focused configurations to redundancy-oriented deployments. This flexibility allows the controller to adapt to various storage strategies across multiple server roles.

HPE Smart Storage Management

Integration with HPE Smart Storage management tools is a defining feature of this category. Administrators gain centralized visibility into storage health, performance metrics, and configuration status through intuitive management interfaces. This tight integration simplifies deployment, monitoring, and maintenance across large server fleets.

Compatibility with HPE ProLiant Gen11 Servers

The HPE P47621-001 SR308i-o Gen11 controller category is purpose-built for HPE ProLiant Gen11 servers, ensuring seamless compatibility and optimal performance. This tight coupling between controller and server architecture allows for streamlined firmware updates, unified support, and consistent system behavior.

Optimized Firmware and Driver Ecosystem

Controllers within this category benefit from firmware that is co-developed with server system software. This approach ensures compatibility with supported operating systems and hypervisors, enabling stable operation across diverse enterprise environments. Firmware updates are designed to enhance performance, security, and reliability without disrupting existing workloads.

Operating System and Hypervisor Support

The SR308i-o Gen11 category supports a wide range of enterprise operating systems and virtualization platforms. This versatility makes it suitable for on-premises data centers, hybrid cloud deployments, and edge computing scenarios. Compatibility with popular hypervisors ensures efficient storage virtualization and resource allocation.

Use Cases Across Enterprise Workloads

This storage controller category addresses the demands of numerous enterprise workloads by combining performance, reliability, and manageability. The SR308i-o Gen11 is designed to operate effectively in environments where consistent I/O performance and data protection are critical.

Virtualization and Cloud Infrastructure

In virtualized environments, storage performance directly impacts virtual machine density and responsiveness. The controller category delivers low-latency access and efficient caching, enabling higher consolidation ratios and improved user experiences. Cloud infrastructure deployments benefit from the controller’s scalability and predictable performance characteristics.

Database and Transactional Applications

Database servers require reliable storage throughput and minimal latency to handle transactional workloads. The SR308i-o Gen11 category supports these requirements by providing stable RAID performance and efficient cache utilization, ensuring that database operations remain responsive under heavy load.

Enterprise Resource Planning Systems

ERP systems rely on consistent data access and high availability. The storage controller category supports these systems by offering redundancy options and advanced monitoring, ensuring business-critical applications remain operational.

Scalability and Future-Proof Design

The HPE SR308i-o Gen11 controller category is engineered with scalability in mind, allowing organizations to adapt to evolving storage demands. Support for modern interfaces and firmware extensibility ensures that the controller remains relevant as storage technologies advance.

Support for High-Capacity and High-Performance Drives

This category is designed to work with a variety of enterprise-grade storage devices, including high-capacity hard drives and performance-oriented solid-state drives. The controller efficiently manages mixed drive environments, allowing organizations to optimize cost and performance.

Management and Long-Term Reliability

Enterprise storage controllers must deliver reliable operation over extended service lifecycles. The SR308i-o Gen11 category emphasizes durability through rigorous validation, comprehensive diagnostics, and continuous firmware enhancements. This focus ensures long-term stability in demanding data center conditions.

Security and Data Integrity Features

Security is a fundamental consideration within this storage controller category. The HPE SR308i-o Gen11 incorporates features that protect data at rest and ensure secure controller operation within enterprise infrastructures.

Secure Firmware and Controller Authentication

Controllers in this category support secure firmware mechanisms that verify authenticity and integrity during updates and boot processes. This reduces the risk of unauthorized modifications and enhances overall system security.

Compliance with Enterprise Security Standards

The controller category aligns with enterprise security and compliance requirements, supporting secure deployment in regulated industries such as finance, healthcare, and government sectors.

Operational Efficiency and Data Center Optimization

The design of the SR308i-o Gen11 storage controller category contributes to improved operational efficiency in modern data centers. By integrating directly with server platforms and management tools, it reduces complexity and administrative overhead.

Reduced Power Consumption and Thermal Impact

OCP-based controllers are optimized for energy efficiency, minimizing power draw while maintaining high performance. This contributes to lower operational costs and improved thermal characteristics in dense server deployments.

Simplified Deployment

Installation and maintenance are streamlined through standardized OCP form factors and unified management interfaces. This category supports rapid deployment and consistent configuration across large-scale environments.

Positioning Within Enterprise Storage Controller Categories

The HPE P47621-001 SR308i-o Gen11 x8 Lanes 2GB Cache OCP Storage Controller represents a focused segment within the broader enterprise storage controller market. It bridges the gap between entry-level integrated controllers and high-end dedicated RAID solutions by offering balanced performance, reliability, and cost efficiency.