Phase 5 - If applicable: Upgrade and validate your other sub-production instances, such as your test instance

If you have any other sub-production instances in addition to your development instance, such as a test instance, request to upgrade these instances. Request these upgrades after you have configured and refined your development instance. Immediately after the upgrade is complete, apply the post-upgrade changes made to your development instance, including activating optional plugins, installing and upgrading applications, and applying update sets.

About this task

This instance naming convention assumes that you have three ServiceNow instances. If you have three instances, upgrade your instances in this order:
  1. Development
  2. Test
  3. Production
If you have more or less than three instances, or if you are using Team Development, these instance labels will be different. In general, upgrade your instances furthest from production towards your production instance.

After you have applied your development update sets to your test instance, perform the following tasks on your test instance (and other sub-production instances, if applicable).

Procedure

  1. Create a system clone down from your production instance.
  2. Schedule the sub-production upgrade in HI and verify your upgrade configurations.
  3. Validate that the upgrade to your sub-production instance is complete.
  4. Install any optional plugins that were installed on your development instance.
  5. Install any custom applications and post-upgrade fix scripts that you need.
  6. Install update sets.
    Use these update sets to move your initial changes into your subsequent sub-production instances.
  7. Perform functional testing and monitor the performance of your instance.
    Reproduce the typical user activities that occur on your production instance. The Automated Test Framework can greatly assist you in testing your sub-production instances. For extra testing coverage, you can also conduct user acceptance testing (UAT).