Analysis And Design Of Ultra 160 SCSI RAID

Hard Disk provide fast and inexpensive data storage. But as with any electromechanical device, disks carry the constant threat of failure. Valuable data can be irretrievably lost when disk failures occur, so IT professionals are constantly challenged to prevent data loss. Data protection is typically provided through a RAID . RAID is short for Redundant Array of Independent Disks, a category of disk drives that employ two or more drives in combination for fault tolerance and performance.We implement Ultra 160 SCSI disk array system successfully on analyzing basic theories and key characteristics of RAID. The system support SPI-3 protocol, hot-swap chassis, auto detect, auto rebuild and RAID levels 3. Ultra 160 SCSI disk array systems are becoming more intelligent, incorporating more diagnosis and automatic alert to reduce human management time. The 10/100 Ethernet port allows easy local or remote configuration and management over a TCP/IP network .The core RAID controller is based on Intel IOP processor. RAID Cache management, firmware and Hardware RAID are developed by our own. Hardware RAID employs FPGA to achieve data parallelism and high I/O transaction rates.