HP StorageWorks Fabric OS 5.X Command Reference Guide (AA-RVHVB-TE, September 2005)

454 Fabric OS commands
desired_distance is used to allocate the buffers. In this case, the port operates in degraded mode
instead being disabled due to insufficient buffers.
Pressing Ctrl+D cancels the configuration update.
When a port is configured to be a long-distance port, the output of portShow and switchShow
displays the long-distance level. In the portShow output, the long-distance level is indicated as follows:
• L0 normal
• LE standard <= 10 km
• LM medium long <= 25 km
• L1 long <= 50 km
• L2 super long <= 100 km
• LD auto
In the switchShow output, the long distance mode appears as Lx, where x is the second letter in the
two-letter distance-level code described earlier; however, L0.5 mode displays LM.
NOTE: The portCfgISLMode and portCfgLongDistance mode cannot both be enabled at the
same time; otherwise, fabric segmentation occurs.
If a port is configured as a long-distance port, the remaining ports of that port group could be disabled,
fail to initialize, or move to “buffer limited” mode due to a lack of frame buffers. HP StorageWorks SAN
Switch 2/8V, 2/16V, and 2/32 switches and HP StorageWorks Core Switch 2/64 and 2/128
directors do not support “buffer limited” mode and can have up to four ports per port group. The 4/8,
4/16, and 4/32 SAN switches and the 4 GB SAN Switch support “buffer limited” mode and can have
up to eight ports per port group. On HP StorageWorks 4/256 SAN Director, the 4/16 and 4/32 SAN
switch port blades support “buffer limited” mode and can have up to four ports per port group.
Operands
This command has the following operands:
slotnumber Specifies the slot number, for bladed systems only. The slot
number must be followed by a slash (/).
portnumber Specifies a port number. Valid values for port number vary,
depending on the switch type. This operand is required.
distance_level See the Description section for information about the value.
vc_translation_link_init Specifies the long-distance link-initialization sequence; 1
activates and 0 deactivates this mode. When the command
is run without specifying a value, 1 is assigned
automatically for the long distance link. This operand is
optional.
desired_distance See the Description section for information about the value.