HP D2D D2D Best Practices for VTL, NAS and Replication implementations (EH985- - Page 14
High availability port mode Port failover, High availability port mode Link Aggregate - user guide
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High availability port mode (Port failover) In this mode, no special switch configuration is required other than to ensure that both Ethernet ports in the pair from the D2D appliance are connected to the same switch. This mode sets up ―bonded‖ network ports, where both network ports are connected to the same physical switch and behave as one network port. This mode provides some level of load balancing across the ports but generally only provides port failover. High availability port mode (Link Aggregate) This is the recommended mode to achieve highest performance for iSCSI and NAS operation. It requires the switch to support IEEE802.3ad Link Aggregation and needs the switch to be set up accordingly. See the relevant product user guide for more details. This mode sets up ―bonded‖ network ports, where both network ports in the pair are connected to the same physical switch and behave as one network port. This mode provides maximum bandwidth across the ports and also port failover if one link goes offline. Network configuration, high availability port mode 14
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