Host Fibre Channel Problems - Impediment RS-1600-X24 User Manual

Problem: SAM pages do not display properly.
• Be sure that your system meets the system requirements described in the X24 Subsystem Getting
Started Guide.
• Configure your browser according to the information in the X24 Subsystem Getting Started Guide.
• Click Refresh or Reload in your browser to display the most current SAM information.
• Be sure that someone else is not accessing the X24 Subsystem using the menu-based interface or
the Configuration Application Programming Interface (CAPI). It is possible for someone else to
change the X24 Subsystem's configuration using these other interfaces. The other person's
changes may not display in SAM until you refresh the SAM page.
• If you are using Windows NT and Internet Explorer, make sure that the Ignore Colors option is not
selected from Tools > Internet Options > Accessibility.
Problem: SAM page help is not displaying.
If you display page help for one page in SAM, do not close the page help window, and display page help
for another SAM window, the page help window stays minimized. Either click the minimized window in
the Windows task bar to display the latest help or close the page help window each time you finish using
it.

7.9 Host Fibre Channel Problems

Problem: The host system does not see the X24 Subsystem.
Verify in the Monitor X24 Subsystem > Status > FC Port Status page (or in the Disk Array
Administrator, the CTRL-E CFG Info screen) that the host channel FC World Wide Name is valid. Verify
that the port ID is active and a valid arbitrated loop port address (AL_PA) is assigned. Verify the array
LUN numbers are configured correctly and not overlapping.
Problem: The FC host port and switch or HBA do not establish a link.
When changing from Loop to Point to Point mode after already establishing a public loop connection, the
switch may ignore subsequent attempts to perform point-to-point initialization. Take one of the following
actions to establish the point to point connection:
• Physically disconnect and reconnect the FC cable.
• Configure the switch port to force point-to-point mode.
• Change the link speed for that port on the X24 Subsystem and then change it back. The switch
recognizes the change from loop to point to point due to the disruption caused when going to the
other link speed (useful if X24 Subsystem is being remotely managed). For information about setting
up the host ports, refer to the X24 Subsystem Getting Started Guide.
• Restart both SM modules. For information about restarting the SM modules, refer to the X24
Subsystem Getting Started Guide.
X24 Troubleshooting
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