Best way to store VM size in out-of box field?

[Nisha30]

Hi,

I know we can create custom field in ServiceNow tables but want to avoid them,

Does anyone know if there is any OOB field where I can define if the VM machine T-Shirt size (such as Medium, Large etc.) I was looking if any related list is there to store such information which can change later on and can 

Thanks

[Ryan Duce]

You should be using the Hardware Type [cmdb_ci_compute_template] CI to model this, with the baseline relationship Provisioned From::Provisioned to the VM linking the Hardware Type to the VM. It contains several other important template fields such as disk space, memory, number of vCPUs etc.

Then, you can use CMDB Query Builder to identify all VMs using a certain Hardware Type.

[Nisha30]

HI @Ryan Duce thanks that was a good insight to start. 

Any suggestion what would be best practice to maintain the version or changes for example if initially it was Large. later on changed to Medium or else so that we can see each line item as we see in some module i dont remember the versions 

Thanks

[Ryan Duce]

Changes to the CMDB are fully audited, so if you run ServiceNow cloud discovery for example and you change the t-shirt size in your cloud environment, discovery would dissociate the old hardware type  and associate a new hardware type. This would then show on the timeline in the dashboard for that configuration item.