Use the Host Port Failover screen to configure the optional host port failover feature for target ports 1 and 2 on the selected I/O blade. You can also use the screen to enable a repaired port by selecting the Port Info button.
Configure the FC host port failover feature so that an I/O blade's "standby" target port (1 or 2) can assume the identity and LUN mapping configuration of the designated "active" target port (1 or 2) if the active port fails. The host port failover feature enables the library to continue operations without requiring you to reconfigure the host or the SAN.
Both target ports 1 and 2 must be attached to the same SAN fabric to provide host access. The active port is used for host communications, while the standby port is kept idle.
To enable host port failover, target ports 1 and 2 on the I/O blade must be configured as point-to-point topology connections. To configure target ports, select Setup > IO Blades > Port Configuration. In addition, channel zoning must be configured so that target ports 1 and 2 have access to all initiator ports (3 through 6). To configure channel zoning, select Setup > IO Blades > Channel Zoning.
The library generates a Reliability, Availability, and Serviceability (RAS) ticket when port failover occurs. Examine the ticket to determine the reason for the failover. When the failed port is repaired, the port must be enabled to make it available for host port failover as the standby port or active port. Use the Port Info button on this screen to enable a repaired port.
To enable host port failover:
Note: At any time, select Back to return to the previous screen. Select Cancel to return to the Setup menu.