Product Description
The IBM 2782 PCI-X RAID Disk Unit Controller offers dependable storage solutions with its 40MB cache and RAID-5 functionality. It safeguards internal disks while accommodating internal tape units, CD-ROM, and DVD devices, ensuring seamless integration into existing setups.
Featuring two SCSI buses, this controller manages up to 12 disk units across a maximum of four arrays. It provides flexibility in array optimization, allowing choices between balance, performance, or capacity to meet specific operational demands.
Technical Specifications
- Interface: PCI-X for high-speed connectivity.
- Cache Size: 40MB to enhance data access speeds.
- RAID Support: RAID-5, requiring at least three disk units of identical capacity.
- SCSI Buses: Two, supporting up to 12 disk units total.
- Maximum Arrays: 4 per controller.
- Maximum Disks per Array: 12.
- Supported Devices: Internal disks, up to two removable media devices such as tape, CD-ROM, or DVD.
- Feature Code: #2782.
Key Features
- RAID-5 protection without hardware data compression.
- Parity distribution adjusted based on array size for optimal reliability.
- Array optimization options including balance, performance, and capacity.
- Supports parity redistribution when adding disk units to arrays.
- Designed for IBM systems with PCI-X slots for broad compatibility.
Compatibility This IBM 2782 controller integrates well with a range of IBM System i models and expansion units, providing versatile deployment options under i5/OS environments.
- Supported Models: IBM System i 515, 520, 525, 550, 570, 800, 810, 825, 870, 890.
- Expansion Units: Compatible with #0574/#5074, #0595/#5095, #0694/#9194/#8294/#5094 PCI Expansion Towers.
- Operating System: i5/OS (now known as IBM i).
- Slot Requirements: Requires PCI-X slots, with 64-bit slots recommended for optimal performance; not supported in 5-volt slots.
- Additional Notes: Limited to one controller per IOP when certain ATM IOAs (#2817, #4815, #4816, #4818) are present; follows specific placement rules depending on the model and expansion.
Warranty Information This IBM 2782 PCI-X RAID Disk Unit Controller includes a 60-day warranty, offering confidence during initial deployment and use.