Administrator Guide

Access Gateway Administrator’s Guide 81
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Appendix
A
Troubleshooting
Table 12 provides troubleshooting instructions for Access Gateway.
TABLE 12 Troubleshooting
Problem Cause Solution
Switch is not in Access
Gateway mode
Switch is in Native switch mode Disable switch using the switchDisable command.
Enable Access Gateway mode using
the ag
--modeenable command.
Answer yes when prompted; the switch reboots.
Log in to the switch.
Display the switch settings using the switchShow command. Verify
that the field switchMode displays Access Gateway mode.
NPIV disabled on Edge
switch ports
Inadvertently turned off On the Edge switch, enter the portCfgShow command.
Verify that NPIV status for the port to which Access Gateway is
connected is ON.
If the status displays as “--” NPIV is disabled. Enter the
portCfgNpivPort port_number command with the enable option to
enable NPIV.
Repeat this step for each port as required.
Need to reconfigure
N_Port and F_Ports
Default port setting not adequate for
customer environment
Enter the portCfgShow command.
For each port that is to be activated as an N_Port, enter the
portCfgNport port_number command with the 1 option.
All other ports remain as F_Ports.
To reset the port to an F_Port, enter the portCfgNpivPort port_number
command with the disable option.
LUNs are not visible Zoning on fabric switch is incorrect.
Port mapping on Access Gateway mode
switch is incorrect.
Cabling not properly connected.
Verify zoning on the Edge switch.
Verify that F_Ports are mapped to an online N_Port. See “Access
Gateway default port mapping” on page 17.
Perform a visual inspection of the cabling; check for issues such as
wrong ports, twisted cable, or bent cable. Replace the cable and try
again. Ensure the F_Port on AG module is enabled and active.
Failover is not working Failover disabled on N_Port. Verify that the failover and failback policies are enabled, as follows:
Enter the ag
--failoverShow command with the port_number option.
Enter the ag
--failbackShow command with the port_number option.
Command returns “Failback (or Failover) on N_Port port_number is
supported.”
If it returns, “Failback (or Failover) on N_Port port_number is not
supported.” Refer to “Adding a preferred secondary N_Port (optional)”
on page 52.