HP P4000 9.0 HP StorageWorks P4000 SAN Solution User Guide - Page 87
Configuring network interface bonds, Obtain an address automatically using the DHCP/BOOTP protocol
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3. Select Obtain an address automatically using the DHCP/BOOTP protocol. 4. Click OK. 5. Click OK on the confirmation message. 6. Click OK on the message notifying you of the automatic log out. NOTE: Wait a few moments for the IP address change to take effect. Configuring network interface bonds Network interface bonding provides high availability, fault tolerance, load balancing and/or bandwidth aggregation for the network interface cards in the storage system. Bonds are created by joining physical NICs into a single logical interface. This logical interface acts as the master interface, controlling and monitoring the physical slave interfaces. Bonding two interfaces for failover provides fault tolerance at the local hardware level for network communication. Failures of NICs, Ethernet cables, individual switch ports, and/or entire switches can be tolerated while maintaining data availability. Bonding two interfaces for aggregation provides bandwidth aggregation and localized fault tolerance. Bonding the interfaces for load balancing provides both load balancing and localized fault tolerance. NOTE: The VSA does not support NIC bonding. Depending on your storage system hardware, network infrastructure design, and Ethernet switch capabilities, you can bond NICs in one of three ways: • Active-Passive. You specify a preferred NIC for the bonded logical interface to use. If the preferred NIC fails, then the logical interface begins using another NIC in the bond until the preferred NIC resumes operation. When the preferred NIC resumes operation, data transfer resumes on the preferred NIC. • Link Aggregation Dynamic Mode. The logical interface uses both NICs simultaneously for data transfer. This configuration increases network bandwidth, and if one NIC fails, the other continues operating normally. To use Link Aggregation Dynamic Mode, your switch must support 802.3ad. CAUTION: Link Aggregation Dynamic Mode requires plugging both NICs into the same switch. This bonding method does not protect against switch failure. • Adaptive Load Balancing (ALB). The logical interface balances data transmissions through both NICs to enhance the functionality of the server and the network. Adaptive Load Balancing automatically incorporates fault tolerance features as well. P4000 SAN Solution user guide 87