HP 615415-002 SAS-SATA Smart Array
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615415-002 HP Smart Array P822 PCI-E 3.0 X8 SAS SATA Raid Bulk

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Part Number#: 615415-002
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Short Description:
615415-002 Smart Array P822 Peripheral Component Interconnect Express (PCI-E) 3.0 X8 Serial-Attached SCSI (SAS) /Serial Advanced Technology Attachment (SATA) Raid Controller with 2 Gigabyte(GB) Flash-Backed Write Cache (FBWC) | Made by HP | New Bulk Pack
Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
90 Days
Product Overview for the HP 615415-002 Smart Array Card

The 615415-002 HP Smart Array P822 is a powerful RAID (Redundant Array of Independent Disks) controller designed to enhance the storage capabilities of servers. In this detailed exploration, we will delve into the key features, functionalities, and specifications of this particular model, focusing on its PCI-E 3.0 X8 interface, SAS and SATA compatibility, and the notable 2GB Flash-Backed Write Cache (FBWC) technology it incorporates.

Understanding the Basics
RAID Controllers: An Overview

Before we delve into the specifics of the 615415-002 model, let's understand the fundamental concept of RAID controllers. RAID is a technology that combines multiple disk drives into a single logical unit to improve data performance, fault tolerance, or both. RAID controllers are critical components that manage and optimize the operation of these disk arrays.

PCI-E 3.0 X8 Interface

The 615415-002 comes equipped with a PCI Express 3.0 X8 interface, providing high-speed data transfer between the RAID controller and the server's motherboard. The PCI-E 3.0 standard offers increased bandwidth compared to its predecessors, ensuring efficient communication and data flow.

Key Features of 615415-002 HP Smart Array P822
  • SAS and SATA Compatibility: One of the standout features of the 615415-002 model is its compatibility with both SAS (Serial Attached SCSI) and SATA (Serial ATA) drives. This flexibility allows users to integrate a variety of storage devices, optimizing the controller's adaptability to diverse server configurations.
  • SAS (Serial Attached SCSI): SAS drives are known for their high performance and reliability, making them suitable for mission-critical applications. The P822 controller's SAS compatibility ensures seamless integration with these high-performance drives, meeting the demands of data-intensive tasks.
  • SATA (Serial ATA): SATA drives, while typically offering a lower rotational speed than SAS drives, are cost-effective and well-suited for general-purpose storage. The inclusion of SATA compatibility in the P822 expands its versatility, catering to a broad spectrum of storage needs.
  • 2GB Flash-Backed Write Cache (FBWC): The 615415-002 model features a Flash-Backed Write Cache (FBWC) with a generous capacity of 2GB. This technology is crucial for enhancing data reliability and performance in RAID configurations.
  • Importance of Write Cache: Write caching involves temporarily storing write data in a high-speed cache before it is written to the actual storage device. FBWC ensures that in the event of a power loss or system failure, the cached data can be written to the disk once power is restored, preventing data loss.
  • Improved Performance: The sizable 2GB FBWC of the P822 significantly contributes to improved write performance, especially in scenarios where there are frequent write operations. This feature is particularly beneficial in environments with demanding workloads, such as database applications or virtualization.
RAID Levels and Data Protection

The P822 supports a variety of RAID levels, each offering a different balance of performance, capacity, and data protection. Common RAID levels supported by this controller include RAID 0, RAID 1, RAID 5, RAID 6, and RAID 10.

  • RAID 0: RAID 0, often referred to as striping, enhances performance by splitting data across multiple drives. While this improves speed, it does not provide redundancy, making it more susceptible to data loss in the event of a drive failure.
  • RAID 1: RAID 1, or mirroring, duplicates data across two drives. While this provides redundancy and fault tolerance, it does not necessarily improve performance.
  • RAID 5: RAID 5 combines striping with parity data distributed across all drives. This provides a balance of performance and fault tolerance, allowing for the recovery of data in the event of a single drive failure.
  • RAID 6: RAID 6 is similar to RAID 5 but includes an additional parity block, providing enhanced fault tolerance by allowing for the simultaneous failure of two drives without data loss.
  • RAID 10: RAID 10 combines the features of RAID 1 and RAID 0 by mirroring and striping data. This provides both redundancy and improved performance, making it suitable for high-performance applications.
Use Cases and Industry Applications

The versatility of the HP Smart Array P822 makes it suitable for various use cases and industry applications. Some notable scenarios include:

  • Enterprise Storage: In large-scale enterprise environments, where data reliability, performance, and scalability are paramount, the P822 controller can be employed to manage extensive RAID arrays comprised of SAS or SATA drives.
  • Data Centers: Data centers, with their rigorous storage requirements, can benefit from the high-speed connectivity and robust RAID functionalities offered by the P822 controller to ensure data availability and protection.
  • Virtualization: In virtualized environments, where multiple virtual machines share the same physical hardware, the P822 enhances storage efficiency and performance by managing RAID configurations for virtualized storage solutions.
  • Backup and Archiving: The reliability and data protection features of the P822 make it a suitable choice for backup and archival systems, ensuring that critical data is securely stored and quickly retrievable when needed.
Compatibility and Integration

The 615415-002 model is designed for seamless integration into various server environments, ensuring compatibility with a range of server models and architectures. This promotes ease of adoption and minimizes potential compatibility issues.

  • Server Compatibility: The P822 is engineered to work with a wide array of HP ProLiant servers, ensuring that users can leverage its capabilities across different server models within the HP ecosystem.
  • Operating System Support: To enhance its versatility, the controller supports multiple operating systems, including popular choices like Windows Server, Linux, and VMware. This compatibility ensures a smooth integration process, regardless of the preferred operating environment.
General Information about this HP 615415-002
  • Brand: HP
  • Part Number or SKU# 615415-002
  • Product Name: Controller
  • Sub-Type: SAS-SATA
Technical Specifications
  • Controller Interfaces Type: Serial ATA/600, Serial Attached SCSI (SAS)
  • Bus Type: PCI Express 3.0 x8
  • Data Transfer Rate: 768 Mbps
  • RAID Supported: Yes
  • RAID Levels: RAID 0, RAID 1, RAID 1+0, RAID 5, RAID 6, RAID 50, RAID 60, RAID JBOD, RAID 1 ADM
  • Drives Supported: Up to 227
  • Platform Supported: PC
  • Data Backup Type: Flash-backed Cache
  • Ports: 2 x 6Gb/s SAS (Mini-SAS internal), 4 x 6Gb/s SAS (Mini-SAS external)
  • HP D2000 Disk Enclosures
  • HP ProLiant DL Servers
  • HP ProLiant ML Servers

In general, the 615415-002 HP Smart Array P822 PCI-E 3.0 X8 SAS SATA Raid Controller with 2GB FBWC stands out as a versatile and powerful solution for optimizing storage performance and reliability in server environments. With its compatibility with both SAS and SATA drives, 2GB FBWC technology, and support for various RAID levels, it addresses the diverse needs of businesses ranging from data-intensive applications to general-purpose storage. The inclusion of advanced manageability features and broad compatibility further solidifies its position as a reliable choice for those seeking a robust RAID controller to enhance their server infrastructure.

Product Condition:
New Bulk Pack
Warranty provided by ALLHDD.COM:
90 Days

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