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IBM 02DE930 57B4 4-Ports SAS 6Gb/s PCI Express 3 x8 RAID Adapter
- Interface: PCI Express 3.0 x8
- Ports: 4x SAS (Serial Attached SCSI) ports
- Data Transfer Rate: Up to 6Gb/s per port
- RAID Levels Supported: RAID 0, 1, 5, 6, 10, 50, 60 (typical for enterprise SAS RAID adapters)
- Cache Memory: Typically 512MB or 1GB DDR3 (specific to 57B4)
- Form Factor: Full-height, half-length PCIe card
- Host Connectivity: Connects to SAS or SATA drives
- Features: Advanced data protection, high availability, performance enhancement
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Product Overview
The IBM 02DE930 (part number 57B4) is a 4-port SAS 6Gb/s RAID adapter with a PCI Express 3.0 x8 interface. It is designed to provide high-speed storage connectivity and data redundancy for servers and workstations.
Technical Information
| Part Number | 02DE930 (57B4) |
| Interface | PCI Express 3.0 x8 |
| Port Type | SAS (Serial Attached SCSI) |
| Number of Ports | 4 |
Additional Specifications
| Data Rate per Port | 6Gb/s |
| RAID Support | RAID 0, 1, 5, 6, 10, 50, 60 |
| Cache Memory | 512MB or 1GB DDR3 (57B4) |
Product Description
The IBM 02DE930, identified by its feature code 57B4, is a high-performance SAS RAID adapter designed to enhance storage capabilities in server and workstation environments. Featuring a PCI Express 3.0 x8 host interface, it provides ample bandwidth for demanding storage applications, ensuring fast data transfer rates of up to 6Gb/s per SAS port. This adapter is equipped with four external SAS ports, allowing for direct connection to a significant number of SAS or SATA hard drives or SSDs, enabling flexible storage configurations. This RAID controller supports a comprehensive suite of RAID levels, including RAID 0 (striping for performance), RAID 1 (mirroring for redundancy), RAID 5 (striping with parity for balanced performance and redundancy), RAID 6 (striping with dual parity for enhanced redundancy against multiple drive failures), and RAID 10, 50, and 60 for more complex, high-availability configurations. The inclusion of onboard cache memory (typically 512MB or 1GB DDR3 for the 57B4 model) significantly accelerates read and write operations by buffering data, further boosting storage performance and reducing latency. The 02DE930 adapter is crucial for applications requiring robust data protection, high availability, and optimized storage performance. It is suitable for use in file servers, database servers, virtualization hosts, and other enterprise-class systems where data integrity and fast access to storage are paramount. Its PCIe 3.0 x8 interface ensures it can keep pace with modern multi-core processors and high-speed storage devices, making it a valuable component for building reliable and performant storage subsystems.
