Hi @mailkaushikp
My two cents below:
You will need to request SAS Software depot for 9.4 M6 for the site from SAS account manager or representative
Software Order E-Mail (SOE) should also contain your new license file and instructions to download the depot
Upgrade options:
SAS Migration Utility (SMU)
Run pre-assessment on your current environment and create content packages
On the new VM, perform the pre-installation checks
Run the SDW, Install/configure and use the packages created earlier during configuration
Reference: Copying an Existing SAS 9.4 Deployment Notice to SAS Migration Utility Users
Partial Promotion
On the new VM, perform the pre-installation checks
Install the new software version of VM and using SAS export/import utilities promote your content from older environment to new one
Reference: Introduction to the Promotion Tools
Cloning
If your site has software that can clone your entire system i.e. everything on OS and application software, data then you can clone the existing system
Perform upgrade in place for the cloned instance
Reference: How the SAS Deployment Wizard Adds, Updates, and Upgrades Software
NOTE: Just copying of files is not supported, it should be a proper clone. Usually NOT recommended if IT teams doesn't support it fully
Check out the migration guide for more detailed steps and understand the process better Migration Guide
Agree with @SASKiwi that you should upgrade to M7 instead of M6. It was released in Aug 2020
For your old environment if you wish to continue using it alongside the new one, you should speak to your account executive on the terms and conditions and financial impacts
If you are going to decommission the old environment, I don't think there should be any impact on license
Hope this helps!
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