Determine the Scope of the Upgrade or Migration
This section will help you determine:
the scope of your upgrade or migration
the best upgrade or migration method to use for your deployment
where to find the information that you need to complete the upgrade or migration process
|Command or Action
Determine whether you need to update the following components:
Ensure that your system meets the requirements of the new release.
Verify the Supported Upgrade and Migration Paths.
Use the information in this chapter to determine whether you can upgrade or migrate directly from your currently installed version, or whether you need to upgrade or migrate to an intermediate version before proceeding.
Identify the Type of Deployment
Identify the type of deployment you have and use this information to find the upgrade or migration method that Cisco recommends.
Determine the Sequencing Rules and Time Requirements
Direct upgrades only. The sequence in which you perform upgrade procedures depends on your deployment, and on how you want to balance the level of user impact with the amount of time required to complete the upgrade. You must identify the sequence that you will follow before you are ready to perform the upgrade process.
The information in this section applies only if you are performing a direct upgrade using either the Unified CM OS Administration interface or the PCD Upgrade task. PCD Migrations do not require this step. If you are performing a PCD migration, proceed to the next task in this list.
Find the correct upgrade documentation to use based on the needs of your deployment and the recommended upgrade or migration method.