Cisco MDS 9000 Family Release Notes for Cisco MDS SAN-OS Release 3.3(1c) (OL-14116-08, July 2008)

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Cisco MDS 9000 Family Release Notes for Cisco MDS SAN-OS Release 3.3(1c)
OL-14116-08
Upgrading Your Cisco MDS SAN-OS Software Image
Reconfiguring SSM Ports Before Upgrading to SAN-OS Release 3.3(1c)
Starting with Cisco MDS SAN-OS Release 3.0(1), the SSM front panel ports can no longer be
configured in auto mode, which is the default for releases prior to Release 3.0(1).
Note To avoid any traffic disruption, modify the configuration of the SSM ports as described below, before
upgrading a SAN-OS software image prior to Release 3.3(1c).
For more information on upgrading SAN-OS software, see the “Upgrading Your Cisco MDS SAN-OS
Software Image” section on page 10.
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:
Step 1 Verify the operational mode for each port on the SSM using the show interface command:
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 <-------- shows port is configured in auto mode
snmp traps are enabled
Port mode is F, FCID is 0xef0300 <-------- shows current port operational mode is F
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.
a. Set the port admin mode to E or Fx if the current operational port mode is E, TE, F or FL.
switch# config t
switch(config)# interface fc 2/1
switch(config-if)# switchport mode fx
b. Set the port admin mode to E if the current operational port mode is E:
switch# config t
switch(config)# interface fc 2/5
switch(config-if)# switchport mode e
Step 3 Change the configuration for ports 2, 3, and 4 of the quad:
a. Set the admin port mode to Fx if the admin port mode of these ports is E, TE, or auto.
switch# config t
switch(config)# interface fc 2/2
switch(config-if)# switchport mode fx
b. If the first port in the port group has admin mode E or if the port is operational in E port mode,
change the admin state of ports 2, 3, and 4 to shutdown.
switch# config t
switch(config)# interface fc 2/2
switch(config-if)# shutdown