How to migrate N5K to N9K

[ciscomdsmagic]

We have one pair of N5K's and planning on migrating them to a pair of N9K's.

I am not Network engineer, but I am seeking for steps to migration without downtime, as detail as possible.

What I can think of is that join these two N9K's in fabrics first, then move one cable connection from N5K to N9K at one time, is that a good approach?

Thanks in advance!

[nazimkha]

Migration approach may vary on the existing design and requirement.
Assuming if we have the Nexus 5K pair in vPC, uplinked to the core via vPC or by layer 2 trunks to the core switch, we can migrate it to Nexus 9K by building a vPC and uplinking it to the core and than migrating the servers and other devices off the Nexus 5K. Although it all depends on how is the current setup

[cdusio]

If you have hosts that are dual homed and you are using vPC to those hosts, do not try and move one cable at a time to the new 9k's. That will not work. You can certainly build them in parallel, copy the port configs over then move servers. Watch out for vPC domain numbers and spanning tree stuff.