HP 283551-B21 Smart Array Wide Ultra3 SCSI 256MB PCI Raid Controller

Product Description

The HP 283551-B21 Smart Array controller is a high-performance PCI RAID solution designed to enhance the reliability and speed of SCSI-based storage subsystems within HP ProLiant servers. Featuring a Wide Ultra3 SCSI interface, it supports data transfer rates up to 160MB/s, enabling rapid access to data for demanding applications. The controller is equipped with 256MB of onboard cache memory, which significantly accelerates read and write operations by buffering frequently accessed data and commands, thereby reducing latency and improving overall system responsiveness. This RAID controller offers comprehensive support for a wide array of RAID levels, including RAID 0, 1, 5, 6, 10, 50, and 60. This flexibility allows administrators to configure storage arrays that balance performance, data redundancy, and capacity according to specific workload requirements. RAID 1 and 10 provide mirroring for enhanced data protection, while RAID 5 and 6 offer parity-based striping for fault tolerance with better storage efficiency. Higher levels like RAID 50 and 60 combine striping and parity across multiple arrays for superior performance and redundancy in large-scale deployments. The controller also supports hot-plug drive functionality, enabling drives to be added or replaced without interrupting server operations. Designed for integration into HP ProLiant server environments, the 283551-B21 leverages HP's Smart Array technology for advanced management and monitoring capabilities. This includes features like online RAID level migration, stripe size migration, and RAID level conversion, allowing for storage reconfiguration without downtime. The controller's robust architecture and extensive feature set make it an ideal choice for mission-critical applications that require high availability, data integrity, and optimized storage performance.