Product Description
IBM 2763 PCI RAID Disk Unit Controller
The IBM 2763 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, 128MB battery-backed write cache, and high 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 / Part Number: 2763
- Part Number: 91H4082
- 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 2763 PCI-X Ultra 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):
- iSeries 5xx, 6xx, 7xx, 8xx series (select models)
- 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.
IBM 2763 is an Ultra2 SCSI controller with a 10MB write-cache that is designed to control Ultra, Fast Wide, and Fast Narrow SCSI disk and tape units that are installed in the base system unit and the #7102: System Expansion Unit. It provides RAID-5 protection for internal disk units, supporting a maximum of 12 disk units, and up to two internal tape or CD-ROM units. In addition to providing RAID-5 protection for disks, #2763 is also designed to work as a high-performance controller for disks protected by system mirroring or disks with no protection. In the RAID-5 configuration, disk unit protection is provided at less cost than mirroring, and with greater performance than system checksums. A minimum of four disk units of the same capacity are needed for a valid RAID 5 configuration. A maximum of three arrays are allowed per controller, with a maximum of 10 disk units allowed per one array. All disk units in an array must be of the same capacity. Parity is spread across four disk units for arrays of four to six disk units. Parity can be spread across either four or eight drives for arrays of eight to ten drives. For systems started with eight to ten drives in an array and are later upgraded to 8, 9, or 10 drives, the RAID function must be stopped and then re-started before parity will be spread across all eight drives. This feature supports Concurrent DASD Add/Maintenance. The following disks can be placed into RAID-5 arrays: #6813/#9313: 8.58GB Disk Unit, #6817/#8917: 8.58GB 10k rpm Disk Unit, #6818/#8918: 17.54GB 10k rpm Disk Unit, #6824/#8924: 17.54GB Disk Unit. The following tapes can be supported by the #2763: #6381: 2.5GB 1/4-Inch Cartridge Tape, #6382: 4.0GB 1/4-Inch Cartridge Tape, #6383: 16GB l/4-Inch Cartridge Tape, #6386: 25GB l/4-Inch Cartridge Tape.
