HP STORAGEWORKS E1200-160 - Manual (Page 103)

Serial/Telnet User Interface
103 Network Storage Router e1200-160
Note: SCSI devices attached to a Fibre Channel port must be mapped as sequential
Fibre Channel LUNs starting at LUN number 00. Skipping LUN numbers is not
recommended when mapping Fibre Channel LUNs because Fibre Channel Discovery
stops the discovery process whenever an empty LUN position is found.
Caution: If these configuration settings are incorrectly set, processing
difficulties may occur. Before changing these settings, evaluate the need for
the change and verify the desired setting. HP recommends backing up the
router configuration to an external file before making changes to these
settings.
— Manual Discovery Only (default) sets discovery of new devices to only
occur after the user selects the Refresh Device Display option. The
Refresh Device Display option is accessed from the System Utilities
Menu.
■ 6) Toggle Buffered Tape Writes (default: Enabled) changes the tape backup
mode to either Enabled or Disabled.
■ 7) Change Buffered Tape Queue Depth changes the tape backup queue
depth. Select a value from 0 through 10.
■ 8) Toggle Port Mode (default: N_Port) changes the port mode to either Auto
Sense or N_Port:
— Auto Sense: In this mode, the Fibre Channel port tries to negotiate as a
loop. If it is not successful, then the Fibre Channel port negotiates as a
fabric. If the port comes up as a loop, it then determines whether it is on a
private or public loop.
— N_Port (default): This mode allows the router to bypass the loop
negotiation and come up as a fabric only. Use this setting if a HP switch is
being used. If the router is on a loop and N_Port mode is selected, an error
in communication may occur.
■ 9) Change Default Map Value (default: Indexed) changes and displays the
default current map for the port.
Mapping modes can be Auto-Assigned, Indexed (default), or SCC.
For more information about addressing methods, see Appendix C,
"
Addressing Methods and Table Structures ."
■ A) Edit FC Override Settings (service mode-restricted access) enters Fibre
Channel override settings.