Контроллер RAID Controller 3ware DiskSwitch 4D 4 Port ATA, up to 8 HDD, RAID levels: 0, 1 , 3, 5; PCI

3Ware DiskSwitch 4D - 4 Port IDE RAID soloution Allows 4 ATA drives to be attached in a RAID configuration. Perfect inexpensive solution for anyone needing redundancy and speed but cannot afford higher prices SCSI RAID Arrays. The DiskSwitch™ architecture replaces the shared bus found in SCSI systems with a multiplexed data path that speeds data into system memory without burdening the host CPU. The term DiskSwitch actually comprises three aspects of the Escalade controllers: AccelerATA data channels, a packet switching controller, and the card's on-board RISC processor. AccelerATA Data Channel: With 3Ware's AccelerATA Data Channel, the ATA protocol is implemented in the hardware layer, rather than running the software on the host CPU. With a dedicated hardware design, the card assigned each drive on the system individually and handles the queue as well as requests separately before gathering the data coming through the channel. AccelerATA is 3ware's term for the dedicated ATA channel that each drive enjoys on an Escalade. These channels, along with the packet switching controller and on-board RISC processor, provide each ATA drive with full bandwidth to the host.