HPE 820834-B21 Smart Array P440/2GB 12GBPS PCI-E 3.0 X8 New

The HPE 820834-B21 Smart Array P440/2GB SAS Controller is a cutting-edge storage solution designed to enhance data management and performance in enterprise environments. This device, equipped with advanced features and capabilities, plays a crucial role in optimizing storage infrastructure.

Let's delve into the key features that make the HPE 820834-B21 Smart Array P440/2GB SAS Controller a standout choice for businesses seeking efficient storage solutions.

• PCI-E 3.0 X8 Interface: The SAS controller is built on the PCI-E 3.0 X8 interface, ensuring high-speed data transfer between the storage devices and the server. This interface is crucial for maintaining seamless communication and reducing data transfer bottlenecks.
• Single Port INT SAS Controller: The controller features a single port INT (Internal) SAS, facilitating connectivity within the server. This configuration is especially beneficial for organizations with specific internal storage requirements, offering a streamlined and efficient storage solution.
• 12GBPS Data Transfer Rate: One of the standout features of the HPE 820834-B21 is its impressive 12GBPS (Gigabytes Per Second) data transfer rate. This high-speed transfer capability ensures swift and responsive access to stored data, contributing to improved overall system performance.
• 2GB FBWC (Flash Backed Write Cache): The inclusion of a 2GB FBWC is a notable aspect of this SAS controller. The Flash Backed Write Cache is crucial for data protection and integrity. It acts as a buffer during write operations, safeguarding against data loss in the event of a power failure or system crash.

To comprehend the HPE 820834-B21 Smart Array P440/2GB SAS Controller's role in a server environment, let's explore its functionalities and how it contributes to an efficient storage infrastructure.

• Data Storage and Management: The primary function of this SAS controller is to manage and control data storage within a server. It connects to various storage devices, such as hard disk drives (HDDs) or solid-state drives (SSDs), and efficiently organizes data flow between the server and these storage components.
• RAID (Redundant Array of Independent Disks) Support: The SAS controller supports various RAID levels, providing users with flexibility in configuring their storage setup based on redundancy and performance requirements. RAID configurations enhance data protection, improve access times, and ensure continuous operation in case of disk failures.
• Optimized Performance: Leveraging the PCI-E 3.0 X8 interface, the controller optimizes data transfer rates, reducing latency and enhancing overall system performance. This is crucial for applications and workloads that demand high-speed data access, such as database management systems and virtualization environments.
• Data Integrity with FBWC: The Flash Backed Write Cache feature ensures data integrity during write operations. In the event of a power outage or system failure, the FBWC preserves data in the cache, preventing potential data loss. This feature is particularly crucial in mission-critical applications where data consistency is paramount.

Understanding the specific use cases and benefits of the HPE 820834-B21 Smart Array P440/2GB SAS Controller is essential for organizations considering its implementation.

• Data-Intensive Applications: The high-speed data transfer capabilities of the SAS controller make it ideal for data-intensive applications. In environments where quick access to large datasets is critical, such as scientific research, big data analytics, or video editing, the controller's performance optimization is a significant advantage.
• Virtualized Environments: Virtualized environments, powered by hypervisors like VMware or Microsoft Hyper-V, benefit from the controller's ability to efficiently handle storage requests from multiple virtual machines. This results in improved overall virtualization performance and responsiveness.
• Database Management Systems (DBMS): Database servers, which require fast and reliable access to data, find the SAS controller beneficial. The RAID support ensures data redundancy and availability, while the high data transfer rates contribute to faster database query responses.
• Business Continuity and Data Protection: The SAS controller's RAID support and FBWC feature play a crucial role in ensuring business continuity and data protection. Organizations can configure RAID levels to meet their redundancy requirements, and the FBWC provides a safety net during unexpected events, preventing data loss.

The HPE Smart Array P440/2GB controller, also known as the 820834-B21, is a high-performance storage controller that supports data transfer rates of up to 12 Gb/s, providing a high-bandwidth interface for fast data transfer. It includes 2GB of flash-backed write cache (FBWC) which helps to accelerate write performance and protect data in case of power loss.

The controller supports a large number of disks and volumes, allowing for high storage capacity. It also has a large 2GB cache memory and flash-backed write cache (FBWC) which helps to accelerate write performance and protect data in case of power loss.

The controller is also scalable and expandable, allowing the user to add more disks or expand the capacity of existing volumes, using the single internal SAS port, which can be used to connect to multiple external SAS or SATA drive enclosures.

Performance benchmarks and comparison can be done using various tools such as IOMeter, to compare the performance of the controller with other similar controllers.

The RAID level chosen can also impact the performance of the controller, with RAID 0 and RAID 1 offering the best performance, while RAID 5 and RAID 6 offer better data protection at the cost of lower performance. However, the controller also supports RAID 50 and RAID 60 which provide a balance of performance and data protection.

The HPE Smart Array P440/2GB controller, also known as the 820834-B21, includes 2GB of cache memory and a flash-backed write cache (FBWC) which helps to accelerate write performance and protect data in case of power loss.

The cache memory is used to temporarily store data that is being read or written to the disk. This allows the controller to quickly access frequently used data, improving overall performance. The controller also includes an FBWC which is a type of non-volatile cache that is backed by flash memory, this allows the controller to write data to the cache in case of power loss, and then flush it to the disk when power is restored, preventing data loss.

The controller also includes a battery backup unit (BBU) which helps to protect the data in the cache memory and FBWC in case of a power failure. The BBU provides temporary power to the cache memory and FBWC, allowing the controller to flush any data in the cache to the disk before the power is lost.

Cache Memory and FBWC Performance can be enhanced by adjusting various settings such as stripe size, read and write cache, and read-ahead. This can be configured through the controller's BIOS or through software management tools.

Cache Memory and FBWC Data Protection can be done by configuring settings such as write-back caching and read-ahead caching. Additionally, the controller's BBU also protects the data in the cache memory and FBWC in case of power failure.

Cache Memory and FBWC Maintenance and Monitoring can be done through software management tools such as HPE Array Configuration Utility (ACU) or Smart Storage Administrator (SSA), which provide a graphical user interface for monitoring the status of the cache memory, FBWC and BBU, and updating firmware.

Exceptional Reliability

The HPE Smart Array P440/2GB controller, also known as the 820834-B21, is designed for exceptional reliability, providing a range of features to protect data and maintain uptime.

The controller supports various RAID levels, including RAID 0, RAID 1, RAID 5, RAID 6, RAID 10, RAID 50, and RAID 60, which provide options for data performance, security, and fault tolerance. The controller also includes a 2GB of flash-backed write cache (FBWC) which helps to accelerate write performance and protect data in case of power loss.

The controller also includes redundant components and hot-plug support, allowing for the replacement of failed components without having to take the controller offline. This improves the availability of the controller and the RAID.

Firmware and software updates can be done through HPE's Array Configuration Utility (ACU) or Smart Storage Administrator (SSA) to ensure that the controller is running the latest version of firmware and software, which may include bug fixes, security updates, and new features.

The controller also includes Error detection and correction features that help to detect and correct errors in data to ensure that the data stored on the RAID is accurate and reliable.

• Manufacturer: HPE
• Part Number or SKU# 820834-B21
• Product Name: Controller
• Product Type: SAS-SATA

• Product Type: Storage Controller (Raid) - Plug-In Card - Low Profile
• Controller Interface Type: SATA 6GBPS / SAS 12GBPS
• Bus Type: PCI-E 3.0 X8
• Data Transfer Rate: 1.2 GBPS
• Raid Level: Raid 0, Raid 1, RAID 5, RAID 6, RAID 10, RAID 50, RAID 60, Raid 1 ADM, Raid 10 ADM
• Supported Drive: Hard Drive, Disk Array (Raid)
• Channel Qty: 8

In short, the HPE 820834-B21 Smart Array P440/2GB SAS Controller stands out as a robust and versatile storage solution for enterprise environments. With its high-speed data transfer capabilities, RAID support, and advanced features like Flash Backed Write Cache, the controller addresses the evolving storage needs of modern businesses. Whether used in data-intensive applications, virtualized environments, or database management systems, the HPE 820834-B21 SAS Controller plays a pivotal role in optimizing storage infrastructure, enhancing performance, and ensuring data integrity. As technology continues to advance, this SAS controller remains a reliable choice for organizations seeking a powerful and scalable storage solution.