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IBM 84H9678 SSA Raid Controller Card
- Type: RAID Controller Card
- Interface: SSA (Serial Storage Architecture)
- RAID Levels: Supports various RAID levels (e.g., 0, 1, 5, 10)
- Connectivity: SSA ports for connecting to drives/enclosures
- Target Systems: IBM Servers and Storage
- Features: Hardware RAID acceleration, Hot-swap support
- Cache Memory: (e.g., 128MB, 256MB - specific value may vary)
- Data Protection: Enhanced data redundancy and integrity
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Product Overview
The IBM 84H9678 is an SSA (Serial Storage Architecture) RAID controller card, designed for IBM servers and storage systems. It provides hardware-based RAID capabilities for managing disk arrays, enhancing data redundancy and performance through its dedicated processing power.
Technical Information
| Type | RAID Controller Card |
| Interface | SSA (Serial Storage Architecture) |
| RAID Support | RAID 0, 1, 5, 10 (typical) |
Additional Specifications
| Brand | IBM |
| Model | 84H9678 |
| Features | Hardware RAID, Hot-swap support |
Product Description
The IBM 84H9678 is a dedicated RAID controller card utilizing the Serial Storage Architecture (SSA) interface, which was IBM's proprietary high-performance interface for connecting disk drives and storage enclosures. This controller is designed to manage multiple hard drives configured into logical volumes using hardware RAID technology. By employing its own processor and memory, it offloads the complex RAID calculations from the server's main CPU, thereby improving overall system performance and responsiveness, especially under heavy I/O loads. This card supports various RAID levels, commonly including RAID 0 (striping for performance), RAID 1 (mirroring for redundancy), RAID 5 (striping with parity for a balance of performance and redundancy), and RAID 10 (striped mirrors for high performance and redundancy). The specific RAID levels supported and their configurations would be managed through IBM's server management tools. The SSA interface itself was known for its dual-porting capabilities, allowing for redundant paths to storage devices, which enhances data availability and fault tolerance. Designed for integration into IBM server platforms and storage enclosures that utilize the SSA interface, the 84H9678 ensures compatibility and reliable operation within the IBM ecosystem. It is a critical component for systems requiring robust data protection, high availability, and optimized disk I/O performance. Its hardware-based approach to RAID management makes it suitable for demanding enterprise applications such as databases, file servers, and virtualization environments where data integrity and speed are paramount.
