Brocade Network Advisor SAN User Manual v11.1x (53-1002167-01, May 2011)

512 Brocade Network Advisor SAN User Manual
53-1002167-01
Creating high availability (HA) clusters
18
Swapping engines in an HA cluster
Swapping engines is useful when replacing hardware. Swapping engines is different from removing
an engine and adding another because when you swap engines, the configured targets on the
former HA cluster member are moved to the new HA cluster member.
1. Select Configure > Encryption from the menu task bar.
The Encryption Center dialog box displays (Figure 153).
2. Select an encryption group from the Encryption Center Devices table, then select Group > HA
Cluster from the menu task bar, or right-click an encryption group and select HA Cluster.
The Encryption Group Properties dialog box displays, with the HA Clusters tab selected.
To swap engines, select one engine from the High Availability Clusters table and one unclustered
engine from encryption engine from the Non HA Encryption Engines table, then click the
double-arrow button. (Refer to Figure 221.)
NOTE
The two engines being swapped must be in the same fabric.
Failback option
The Failback option determines the behavior when a failed encryption engine is restarted. When
the first encryption engine comes back online, the encryption group’s failback setting (auto or
manual) determines how the encryption engine resumes encrypting and decrypting traffic to its
encryption targets.
• In auto mode, when the first encryption engine restarts, it automatically resumes encrypting
and decrypting traffic to its encryption targets.
• In manual mode, the second encryption engine continues handling the traffic until you
manually invoke failback using the CLI or Management application, or until the second
encryption engine fails. When the encryption engine recovers, it can automatically fail back its
Crypto Target containers if the second encryption engine is not hosting them.
Invoking failback
To invoke failback to the restarted encryption engine from the Management application, complete
the following steps:
1. Select Configure > Encryption from the menu task bar.
The Encryption Center dialog box displays (Figure 153).
2. Select an encryption group from the Encryption Center Devices table to which the encryption
engine belongs, then click Group > HA Clusters, or right-click the group and select HA Clusters.
The Encryption Group Properties dialog box displays, with the HA Clusters tab selected
(Figure 221).
3. Select the online encryption engine, then click Failback.
4. Click OK.
5. Click Close on the Encryption Center dialog box.