Intel SCB2 Product Guide - Page 12

RAID 0 configurations are used for high performance applications, as it doubles the sustained transfer rate of its drives. RAID 1 configurations are primarily used for data protection. It creates an identical drive backup to a secondary drive. Whenever a disk write is performed, the controller sends data simultaneously to a second drive located on a different data channel. With 4 drives attached to dual ATA-100 channels, two striped drive pairs can mirror each other (RAID 0+1) for storage capacity and data redundancy. Network Controller ✏ NOTE To ensure EMC product regulation compliance, the system must be used with a shielded LAN cable. The server board uses two Intel® 82550PM Fast Ethernet† Controllers and supports two 10Base-T/100Base-TX network subsystems. The 82550 PM controller supports the following features: • 32-bit PCI, CardBus master interface • Integrated IEEE 802.3 10Base-T and 100Base-TX compatible PHY† • IEEE 820.3u auto-negotiation support • Chained memory structure similar to the 82559, 82558, 82557 and 82596 • Full duplex support at both 10 Mbps and 100 Mbps operation • Low power +3.3 V device • IP checksum off-loading On the SCB2, NIC 1 can be used as both a network interface and server management interface. NIC Connector and Status LEDs The 82550 controller drives LEDs on the network interface connector that indicate link/activity on the LAN and 10- or 100-Mbps operation. The green LED indicates network connection when on and TX/RX activity when blinking. The yellow LED indicates 100-Mbps operation when lit. Network Teaming Features ✏ NOTE Using both on-board NICs in a team does not allow the use of NIC 1 for server management access. To support both network teaming features and server management features, a third NIC must be added and teamed to NIC 2. 12 Intel Server Board SCB2 Product Guide