Self hosted upgrade

[petterbj_rgmo]

Experts, ServiceNow Masters and ServiceNow Guru's.. I need your help

We are running a self hosted instance and we are going to upgrade from Helsinki to Jakarta. I have been looking at the 'Upgrade Best Practices for Self-Hosted Customers' KB document at HI, but I cant seem to find if it is possible to use functionality like data preservers? As of now, we are looking at copying our backup DB, and cloning that one to our development environment. I am a bit worried that we are copying some system settings, or anything of the sort, that will give us any trouble.

Has anyone done this before? I would like to avoid any common pitfalls if possible

[sergiu_panaite]

In order to make sure you have all properties of target instance untouched, you can export the sys_properties table before clone and restore it after. I believe this will keep all critical settings as before the clone.

[petterbj_rgmo]

Hi,

Won't this be handled by the scripts run on the MySql server post clone? As i recall, ServiceNow recommend running a few scripts on the MySql server post clone.

[sergiu_panaite]

I am not aware of what scripts are run on the database server post clone.

On a regular clone the "Preserve Data" has a row to keep the core properties on the target instance untouched (called "Core Instance Properties").