Use this screen to configure the Purpose, Fault Domain, and User Alias values for all local ports on the Compellent Storage Center.
Local ports are displayed separated by transport type (FC, iSCSI, or SAS). If virtual fault domains have been defined for the iSCSI transport type, the iSCSI tab will not be available and iSCSI ports must be configured using Enterprise Manager.
Select the appropriate tab to configure the ports of each transport type. The columns and options displayed may differ depending upon the transport type selected and the operational mode for that transport type.
Select the Edit Fault Domains button to create, modify, or delete fault domains for the selected transport. This option only appears for FC and iSCSI ports.
Select the Edit Virtual Ports button to modify the Preferred Physical Port value for Virtual Ports. This option only appears for transports using the Virtual Port operational mode.
Select the Reset Defaults button to generate the default port configuration for the selected transport. Resetting port configuration to the default settings will override any existing port configurations and does not attempt to preserve the current connection state of servers attached to the Storage Center. This process may cause volumes to go off-line.
Port configuration changes are not recommended when the local ports are in an unbalanced state.
Ports must be configured before you can map volumes to servers. Modifying port configuration after volumes have been mapped to servers may cause those volumes to go off-line.
The operational mode of each transport type may be either Legacy Mode or Virtual Port Mode. Operational mode is selected per transport type during initial system setup.
Purpose - Legacy Mode:
Purpose - Virtual Port Mode:
Only FC or iSCSI ports can be defined as Front End ports, and only FC or SAS ports can be defined as Back End ports.
For dual controller systems in Legacy Mode, each fault domain must contain an equal number of Primary and Reserved Front End ports on each controller. If a controller failure occurs, each Front End Primary port from the failed controller will failover to a Front End Reserved port on the other controller within the same Fault Domain.
For systems in Virtual Port Mode, if a port or controller failure occurs, Virtual Ports which prefer the failed physical ports are moved to any other physical port within the Fault Domain.