SCOM 2012 Upgrade

Question

Hi All,

Need some advice on SCOM migration

We have SCOM 2012 R2 running on Windows server 2012 R2 and now we wanted to upgrade OS & SCOM MS server to SCOM 2019. Also we have multiple custom management packs
Is it good to upgrade the current SCOM 2012 R2 to 2016 to 2019, then add one Management server with Wk19 OS and then decommission the old WK12 management server

Please advice on the best approach

Answer 1

Recommend upgrade sequence

i) SCOM 2012 R2 ---> SCOM 2016
In-place upgrade to SCOM 2016 from SCOM 2012 R2
https://learn.microsoft.com/en-us/system-center/scom/deploy-upgrade-overview?view=sc-om-2016#in-place-upgrade-1

ii) Windows 2012 R2 --> windows 2016
Upgrade Windows Server 2012 to Windows Server 2016
https://learn.microsoft.com/en-us/windows-server/upgrade/upgrade-2012-to-2016

iii) SCOM 2016 --> SCOM 2019
In-place upgrade to SCOM 2019 from SCOM 2016
https://learn.microsoft.com/en-us/system-center/scom/deploy-upgrade-overview?view=sc-om-2019#in-place-upgrade

Roger

Answer 2

We did a side-by-side migration of SCOM 2012R2 to SCOM 2016, with the SCOM 2016 servers running Server 2016.
A side-by-side migration is your safest/best bet that way if you run into any issues, you still have the old SCOM 2012R2 system up and running. If your in-place migration goes badly, you're going to be out of luck.
Apparently, the in-place migration for 2016 to 2019 is much better, but I haven't tried it yet.