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IBM 81Y4494 ServeRAID Serial ATA/600 PCIe 2.0 x4 Raid Controller
- Serial ATA/600 (SATA II) interface for storage connectivity
- PCI Express 2.0 x4 interface for high-speed data transfer
- Supports RAID levels 0, 1, 5, 10 for data redundancy and performance
- Onboard cache memory for improved I/O operations
- Designed for IBM System x servers
- Hot-swap drive support
- 64-bit LBA support for large capacity drives
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Product Overview
The IBM 81Y4494 ServeRAID is a Serial ATA/600 RAID controller designed for enterprise servers. It utilizes a PCI Express 2.0 x4 interface for high-speed data throughput and supports various RAID levels for data protection and performance.
Technical Information
| Interface | PCIe 2.0 x4 |
| Storage Interface | SATA/600 (SATA II) |
| RAID Levels | 0, 1, 5, 10 |
Additional Specifications
| Cache Memory | Onboard (specific size may vary) |
| Form Factor | Low-profile adapter |
| Compatibility | IBM System x |
Product Description
The IBM 81Y4494 ServeRAID controller is a robust storage solution designed to enhance the data management capabilities of IBM System x servers. It features a Serial ATA/600 interface, also known as SATA II, providing efficient connectivity for multiple hard drives and SSDs. This interface supports data transfer rates of up to 3Gb/s per drive, enabling reliable performance for various storage configurations. Integrated with a PCI Express 2.0 x4 interface, the 81Y4494 ensures high-speed communication between the storage devices and the server's motherboard. This PCIe 2.0 x4 connection offers a significant bandwidth advantage over older interfaces, crucial for demanding server workloads that require fast data access and processing. The controller supports essential RAID levels, including RAID 0 for performance, RAID 1 for mirroring, RAID 5 for a balance of performance and redundancy, and RAID 10 for high performance and redundancy, providing flexibility in configuring storage for data protection and application needs. This RAID controller is engineered for enterprise environments, offering features such as onboard cache memory to accelerate I/O operations and support for hot-swapping drives, allowing for drive replacement without system downtime. Its compatibility with IBM System x servers ensures seamless integration and optimal performance within the IBM hardware ecosystem. The 81Y4494 is a key component for businesses seeking to improve storage reliability, performance, and data availability.
