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
To avoid any traffic disruption, modify the configuration of the SSM ports as described below, before
Note
upgrading a SAN-OS software image prior to Release 3.3(1c) to NX-OS Release 4.2(1a).
For more information on upgrading SAN-OS software, see the
Software Image" section on page 14.
If the configuration is not updated before the upgrade, the installation process for the new image will
automatically convert all ports configured in auto mode to Fx mode. This change in mode might cause
a disruption if the port is currently operating in E mode.
To upgrade the image on your SSM without any traffic disruption, follow these steps:
Verify the operational mode for each port on the SSM using the show interface command:
Step 1
switch# show interface fc 2/1 - 32
fc2/1 is up
Hardware is Fibre Channel, SFP is short wave laser w/o OFC (SN)
Port WWN is 20:4b:00:0d:ec:09:3c:00
Admin port mode is auto
snmp traps are enabled
Port mode is F, FCID is 0xef0300
Port vsan is 1
Speed is 2 Gbps
Transmit B2B Credit is 3
Step 2
Change the configuration for the first port of the quad when the admin port mode is auto. (A quad is a
group of four ports, supported by a data path processor (DPP). The groups are 1 to 4, 5 to 8, 9 to 12, and
so on.) Do not leave the port mode set to auto.
switch# config t
switch(config)# interface fc 2/1
switch(config-if)# switchport mode fx
switch# config t
switch(config)# interface fc 2/5
switch(config-if)# switchport mode e
Change the configuration for ports 2, 3, and 4 of the quad:
Step 3
switch# config t
switch(config)# interface fc 2/2
switch(config-if)# switchport mode fx
switch# config t
switch(config)# interface fc 2/2
switch(config-if)# shutdown
Step 4
Save the running configuration to the startup configuration before the upgrade procedure to ensure that
the changes are preserved during and after the upgrade. To save the configuration, enter the following
command:
switch# copy running-config startup-config
OL-19964-02
Set the port admin mode to E or Fx if the current operational port mode is E, TE, F or FL.
a.
Set the port admin mode to E if the current operational port mode is E:
b.
a.
Set the admin port mode to Fx if the admin port mode of these ports is E, TE, or auto.
If the first port in the port group has admin mode E or if the port is operational in E port mode,
b.
change the admin state of ports 2, 3, and 4 to shutdown.
Cisco MDS 9000 Family Release Notes for Cisco MDS NX-OS Release 4.2(1a)
Upgrading Your Cisco MDS NX-OS Software Image
"Upgrading Your Cisco MDS NX-OS
<-------- shows port is configured in auto mode
<-------- shows current port operational mode is F
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