Downgrade firmware on Cisco UCS B200 M5 servers

[heman7]

Hi Team,

There is a requirement to downgrade the blade firmware from 4.2(3) to 4.1.3h, and subsequently to 3.1, in order to match the UCS Infrastructure version.

As this involves a blade server, I would like to clarify: will all the servers be downgraded at once, or is it possible to downgrade each host individually, one by one?

I couldn’t find any official guide for this process. If anyone has prior experience with a similar scenario or documentation to assist, your input would be greatly appreciated.

[Roger Kallberg]

Moved your post to the UCS section as it’s not related to Collaboration.

[Steven Tardy]

Google:

cisco UCS upgrade path

Leads to:

• https://www.cisco.com/c/dam/en/us/td/docs/unified_computing/ucs/ucs-manager/UCSM-upgrade-downgrade-matrix/UCSM-Upgrade-path-Overview.htm

Which links to:

• https://www.cisco.com/c/dam/en/us/td/docs/unified_computing/ucs/ucs-manager/UCSM-upgrade-downgrade-matrix/index.html

To answer your question:

Yes. One singular server can be upgraded/downgraded. Detailed server firmware guides are published.

UCSM 3.x is EoL and probably should not be used.

Do you have hardware that will not work on newer UCSM 4.x firmware?

Does your new server which has 4.2(3) firmware support 3.1 firmware?

You don't specify PIDs or models so I'm curious why not upgrade everything else instead of downgrade the one?