S e n d d o c u m e n t a t i o n c o m m e n t s t o m d s f e e d b a c k - d o c @ c i s c o . c o m
28-20
Cisco MDS 9000 Family CLI Configuration Guide
OL-16184-01, Cisco MDS SAN-OS Release 3.x
Chapter 28 Configuring FICON
Configuring FICON
To allow the host to move the switch to an offline state, follow these steps:
Allowing the Host to Change FICON Port Parameters
By default, mainframe users are not allowed to configure FICON parameters on Cisco MDS
switches—they can only query the switch.
Use the
host port control
command to permit mainframe users to configure FICON parameters.
To allow the host (mainframe) to configure FICON parameters on the Cisco MDS switch, follow these
steps:
Allowing the Host to Control the Timestamp
By default, the clock in each VSAN is the same as the switch hardware clock. Each VSAN in a Cisco
MDS 9000 Family switch represents a virtual director. The clock and time present in each virtual director
can be different.To maintain separate clocks for each VSAN, the Cisco SAN-OS software maintains the
difference of the VSAN-specific clock and the hardware-based director clock. When a host (mainframe)
sets the time, the Cisco SAN-OS software updates this difference between the clocks. When a host reads
the clock, it computes the difference between the VSAN-clock and the current director hardware clock
and presents a value to the mainframe.
The VSAN-clock's current time is reported in the output of
show ficon vsan
vsan-id
,
show ficon
, and
show accounting log
commands.
Command
Purpose
Step 1
switch#
config t
switch(config)#
Enters configuration mode.
Step 2
switch(config)#
ficon vsan 2
switch(config-ficon)#
Enables FICON on VSAN 2.
Step 3
switch(config-ficon)#
no host control
switch offline
Prohibits mainframe users from moving the switch to
an offline state.
switch(config-ficon)#
host control
switch offline
Allows the host to move the switch to an offline state
(default) and shuts down the ports.
Command
Purpose
Step 1
switch#
config t
switch(config)#
Enters configuration mode.
Step 2
switch(config)#
ficon vsan 2
switch(config-ficon)#
Enables FICON on VSAN 2.
Step 3
switch(config-ficon)#
no host port control
Prohibits mainframe users from configuring FICON
parameters on the Cisco MDS switch.
switch(config-ficon)#
host port control
Allows mainframe users to configure FICON
parameters on the Cisco MDS switch (default).
Содержание 9124 - Cisco MDS Fabric Switch
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