Product Description
IBM 4778 PCI RAID Disk Unit Controller
The IBM 4778 is a high-performance PCI-X RAID Disk Unit Controller designed for POWER5 and POWER6 era Power Systems and iSeries servers. It supports advanced RAID configurations (RAID 0, 1, 5, 10) with Ultra320 SCSI interface, battery-backed write cache, and excellent throughput for demanding storage workloads in legacy enterprise environments.
This controller excels in providing data redundancy, enhanced I/O performance, and reliable storage expansion for databases, ERP systems, file serving, and business-critical applications running on AIX or IBM i. Ideal for upgrading older systems or replacing failed RAID adapters while maintaining high availability and performance.
Key Features
- PCI-X RAID controller for internal disk units
- Supports RAID levels 0, 1, 5, 10
- Ultra320 SCSI interface (LVD/SE, 320 MB/s)
- 128MB battery-backed write cache for data integrity
- High-performance caching and RAID protection
- Compatible with multiple SCSI disk drives
- Designed for POWER5/POWER5+/POWER6 legacy systems
Specifications
- Feature Code: 4778 / 2778
- Part Number: 21P3735 53P4802
- Interface: PCI-X (64-bit, 133 MHz)
- RAID Levels: 0, 1, 5, 10
- SCSI Type: Ultra320 LVD/SE
- Cache: 128MB battery-backed write cache
- Compatibility: Select POWER5/POWER5+/POWER6 Power Systems and iSeries
- Form Factor: PCI-X card
Compatibility
This IBM 4778 PCI-X RAID Disk Unit Controller is compatible with select legacy IBM Power Systems and iSeries servers that support PCI-X RAID adapters with Ultra320 SCSI, including (but not limited to):
- AS/400 9406-170, 9406-270, 9406-800, 9406-810, 9406-820
- Power 520 / 720 / 740 / 750 / 770 / 780 (POWER5/POWER5+/POWER6 models)
- pSeries 520 / 550 / 570 / 590 / 595 (POWER5/POWER6 models)
- Systems with available PCI-X slots and Ultra320 SCSI support
Verify exact system model, PCI-X slot availability, firmware level, battery cache requirements, and supported disk configurations before installation. Compatible with AIX and IBM i operating systems on supported hardware.
Warranty
60-day warranty included.
