Sun 375-0015 A1000 16MB MPU RAID Controller Board without Battery

Product Description

The Sun 375-0015 is a Microprocessor Unit (MPU) integrated RAID controller board designed for the Sun A1000 storage system. With 16MB of onboard memory, it provides the necessary processing power and cache to manage multiple hard drives in a Redundant Array of Independent Disks (RAID) configuration. This controller is fundamental to the operation of the A1000, enabling features such as data striping, mirroring, and parity calculations to enhance both performance and data reliability. This specific model, 375-0015, is noted as being without a battery. This means that while it manages RAID operations, it does not include a Battery Backup Unit (BBU) to protect the write cache during power interruptions. Consequently, data residing in the cache at the time of a power loss may be at risk of being lost or corrupted, which is a critical consideration for system administrators when deploying this controller. It relies on the system's overall power stability or external UPS solutions for cache protection. The controller's role is to present a logical volume to the host system, abstracting the complexity of the underlying physical drives. It supports various RAID levels, allowing for flexible configurations based on the specific requirements for performance, capacity, and fault tolerance. The integration of an MPU directly on the board ensures efficient handling of RAID calculations, offloading this processing from the host server's CPU.