HP LeftHand P4000 SAN Solutions - Manual (Page 62)

Table 25 Example Adaptive Load Balancing failover scenario and corresponding NIC status
NIC status Example failover scenario
1. Adaptive Load Balancing bond0 is created.
Interface:Port1 and Interface:Port2 are both active. •
Bond0 is the master logical interface.
•
Interface:Port1 is Active.
•
Interface:Port2 is Active.
2. Interface:Port1 interface fails. Because Adaptive Load
Balancing is configured, Interface:Port2 continues
operating. • Interface:Port1 status becomes Passive (Failed).
•
Interface:Port2 status remains Active.
3. Interface:Port1 link failure is repaired. •
Interface:Port1 resumes Active status.
• Interface:Port2 remains Active.
Summary of NIC states during failover
Table 26 (page 62) shows the states of Interface:Port1 and Interface:Port2 when configured for
Adaptive Load Balancing.
Table 26 NIC status during failover with Adaptive Load Balancing
Status of Interface:Port2 Status of Interface:Port1 Failover status
Preferred: No Preferred: No Normal Operation
Status: Active Status: Active
Data Transfer: Yes Data Transfer: Yes
Preferred: No Preferred: No Interface:Port1 Fails, Data Transfer
Fails Over to Interface:Port2
Status: Active Status: Passive (Failed)
Data Transfer: Yes Data Transfer: No
Preferred: No Preferred: No Interface:Port1 Restored
Status: Active Status: Active
Data Transfer: Yes Data Transfer: Yes
Example network cabling topologies with Adaptive Load Balancing
A simple network configuration using Adaptive Load Balancing in a high availability environment
is illustrated in
Figure 40 (page 63) .
62 Managing the network