Cisco Cisco Nexus 5010 Switch Installation Guide

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Cisco Nexus 5500 Series NX-OS Software Upgrade and Downgrade Guide, Release 7.0(8)N1(1)
In-Service Software Upgrades
You can also perform the following tasks to identify potential problems before they occur:
Ensure that you have enough space to store the images on bootflash: 
Display incompatible configurations on the current system that will impact the upgrade version.
switch-2# show incompatibility system bootflash:n5000-uk9.7.0.8.N1.1.bin 
No incompatible configurations 
Display the status of FEXs connected to the system as follows:
switch# show fex
FEX         FEX           FEX                       FEX               
Number    Description      State            Model            Serial     
------------------------------------------------------------------------
126         FEX126                Online  N2K-C2232TM-E-10GE   SSI153501JG
127         FEX127                Online  N2K-C2232TM-E-10GE   SSI153402XS
144         FEX144                Online    N2K-C2232PP-10GE   SSI1405704A
Display the STP configuration and whether potential STP issues exist as follows:
switch# show spanning-tree issu-impact 
For ISSU to Proceed, Check the Following Criteria :
1. No Topology change must be active in any STP instance
2. Bridge assurance(BA) should not be active on any port (except MCT)
3. There should not be any Non Edge Designated Forwarding port (except MCT)
4. ISSU criteria must be met on the VPC Peer Switch as well
Following are the statistics on this switch
No Active Topology change Found!
Criteria 1 PASSED !!
No Ports with BA Enabled Found!
Criteria 2 PASSED!!
No Non-Edge Designated Forwarding Ports Found!
Criteria 3 PASSED !!
ISSU Can Proceed! Check Peer Switch.
Use the show lacp issu-impact command to display if any port or a peer switch is configured in rate 
fast mode.
Verify that an ISSU is nondisruptive. You can display the information about the impact of the 
upgrade on each FEX and include details such as the upgrade image versions. This command also 
displays if the upgrade is disruptive/nondisruptive and the reason why.
switch# show install all impact kickstart bootflash:n5000-uk9-kickstart.7.0.8.N1.1.bin 
system bootflash:n5000-uk9.7.0.8.N1.1.bin
 
show spanning-tree issu-impact 
Displays the spanning-tree configuration and whether or not there 
are potential STP issues.
show lacp issu-impact 
Displays the port priority information and whether or not there are 
potential issues.
show fcoe-npv issu-impact 
Checks whether disable-fka is set on any of the FCoE NPV (VNP) 
ports as a pre-ISSU check.
Table 6
Upgrade show Commands (continued)