FEX Upgrade from 2104 XP to 2204 UP

[andyblada1]

Hello Experts,

I have to upgrade 10 IO modules (as 5 chassis are there & UCSM version is 2.2). i.e 2104 to 2204.
Already refered cisco link :-
https://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/hw/chassis-install-guide/ucs5108_install/ucs5108_install_chapter_011.html#concept_CE986C9ED42F411A847AB54176A8DB7D.

I have got confusion on step "Upgrading from a pair of UCS 2104XP to a pair of UCS 2200 series modules should be done first on the FEX connected to the standby Fabric Interconnect, standby should be made active, then the FEX connected to the new standby Fabric Interconnect can be upgraded.".

As there are total 10 FEX, Do i need to repeat these steps every time? active to standby or vice versa??
OR i am missing something here.

Also, is there any link or document which i can refer to check newer MLOM and adapter card models that are not fully compatible with the older FEX model i.e. 2104.

Cheers

Andy!

[Wes Austin]

Andy,

You can check the spec sheet for the individual adapters to confirm their compatibility.

The upgrade is pretty straight forward. Just replace the IOMs on a single chassis at a time on the subordinate side first. I would shutdown the interfaces from the FI side, replace the IOM, and then turn them back up.

After this the FI will push the firmware down to the replacement IOM. You can confirm this in the Firmware management tab.

Once the subordinate side is complete, conduct the cluster lead change, and follow the same steps on the other side.

Wes

[andyblada1]

Hello Wesley,
Thank you for your response.
I guess upgrade will be pretty straight forward in case of replacing 2 FEX modules.

What in case 10 FEX to be replaced. That's what my concern is.
Do i need to switch FI every time from Subordinate to Primary and keep on doing it after every FEX replacement??
OR replaced all the FEX at one time which are connected to Subordinate FI and then perform same step for other side of FEX's??

Cheers!!
Andy

[Wes Austin]

Replace all the FEX modules on subordinate FI. Cluster lead change. Then replace all FEX modules on the now subordinate, once primary FI.

[andyblada1]

Thnx Wes. Let me try this . if everything goes well will mark it as solved and will give 5 stars as well :)

[rburns042]

I am getting ready to do the same thing (exchanging 2104 XP modules for 2204 UP modules), and am curious to know if it is best practice to move the VMs housed on the blades in the affected chassis before doing the upgrade?