UCS - B Firmware 2.1(3) with Infrastructure 2.1(1b)

[Mate Grbavac]

Hi,

I have two fabric interconnects, UCSM and bunch of UCS B200 M3 servers, all at 2.1(1b) version.

On six servers we have ESXi 5.1 which we need to upgrade to version ESXi 5.5.

According to compatibility matrix site, for ESXi 5.5 we must have at least UCS 2.1(3) version.

Is it possible to upgrade just firmware on six ESX servers to version 2.1(3) and leave UCSM, FIs IOMs and other servers at UCS 2.1(1b) version?

Is this configuration supported?

BR, Mate

[Walter Dey · Accepted solution]

according to release notes http://www.cisco.com/c/en/us/td/docs/unified_computing/ucs/release/notes/ucs_2_2_rn.html

it is not supported.

Why are you not upgrading your infrastructure