158855-001 is an HP/Compaq Integrated Smart Array Controller (ROC) providing hardware RAID functionality for legacy ProLiant servers. It contains 16MB of integrated cache and uses an Ultra2 SCSI storage interface. Unlike a conventional PCI RAID card, this controller is designed to plug directly into the system board of supported ProLiant platforms. HP parts documentation lists it as the Integrated Smart Array Controller.
- Part Number: 158855-001
- Manufacturer: HP / Compaq
- Product: Integrated Smart Array Controller
- Controller Type: RAID-on-Chip (ROC) / Hardware RAID
- Cache: 16MB integrated cache
- Storage Interface: Ultra2 SCSI
- Host Interface: Proprietary system-board interface
- Form Factor: Integrated/removable controller module
- RAID Support: Hardware RAID, including RAID 0/1 and other supported array configurations
- Application: Internal SCSI disk-array management and hardware RAID
- Compatible Systems: HP/Compaq ProLiant DL360 G1, DL380 G1 and DL580, as well as selected ML370-generation systems.
- Related Option: 128293-B21 — Integrated Smart Array Controller option; 158855-001 is the spare part.
- Related Part: 158855-002 — 16MB RAID-on-Chip upgrade/reference part.
- Included: 1 × 16MB Integrated Smart Array/ROC controller module
- Compatibility Note: This is not a standard PCI Smart Array controller card. On supported systems it installs on the motherboard/system-board controller position; the DL360 G1 documentation specifically lists 158855-001 as its Integrated Smart Array Controller.
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