Enabling And Disabling Failover For A Port Group; Adding A Preferred Secondary External Port (N_Port) - Dell PowerEdge M420 Administrator's Manual

Enabling and disabling Failover for a port group

Failover policy can be enabled on a port group. To enable or disable use the following steps to
enable or disable failover on all the external ports (N_Ports) belonging to the same port group.
1. Connect to the FC SAN Module and log in using an account assigned to the admin role.
2. Enter the ag
3. Enter the ag

Adding a preferred secondary external port (N_Port)

Internal ports (F_Ports) automatically fail over to any available external port. Alternatively, you can
specify a preferred secondary external port for mapping in case the primary external port has
failed. The internal ports must have a primary external port mapping before a secondary external
port can be configured.
1. Connect to the FC SAN Module and log in using an account assigned to the admin role.
2. Enter the ag --prefset command with the "F_Port1;F_Port2; ..." N_Port operands to add the
NOTE
Preferred mapping is not allowed when login balancing mode is enabled for a port group, so there
is no preferred secondary external port. All external ports are the same when login balancing is
enabled.
Deleting internal ports from a preferred secondary external port
1. Connect to the FC SAN Module and log in using an account assigned to the admin role.
2. Enter the ag --prefdel command with the "F_Port1;F_Port2;..." External port (N_Port)
Dell 8/4Gbps FC SAN Module Administrator's Guide
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failoverenable -pg pgid command to enable failover.
--
switch:admin> ag --failoverenable -pg 3
Failover policy is enabled for port group 3
failoverdisable -pg pgid command to disable failover.
--
switch:admin> ag --failoverdisable -pg 3
Failover policy is disabled for port group 3
preferred secondary internal ports to the specified external port.
The internal ports must be enclosed in quotation marks and the port numbers must be
separated by a semicolon, for example:
switch:admin> ag --prefset "3;9" 4
Preferred N_Port is set successfully for the F_Port[s]
operands to delete internal ports (F_Ports) from an external port.
The list of internal ports must be enclosed in quotation marks. Port numbers must be
separated by a semicolon. In the following example, internal ports 3 and 9 are deleted from
preferred secondary external port 4.
switch:admin> ag --prefdel
Preferred N_Port is deleted successfully for the F_Port[s]
"3;9" 4
3
Failover
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