# Upgrading Migrating a system using Configuration Manager

Note: Due to modifications in PME, the side-by-side upgrade migration process has changed since the previous PME release.

Each field deployed system is unique. Some systems have been modified very little from the factory defaults, while others may have been completely customized. In PME, the various configuration items and settings are stored in different locations and in different formats. Most of the configuration items and settings stored in a file or in the database are easy to migrate to the new system using Configuration Manager easy to migrate in bulk to the new system; however, a few must be recreated individually in the new system. This guide will help identify those settings.

Upgrading Upgrading Migrating Migrating a configuration from an old system to a new system using Configuration Manager is accomplished in six seven steps and must be done in the following order:

- Step 1 – Prepare both systems
- Step 2 – Copy the configuration of the old system
- Step 3 – Identify settings that must be individually transferred
- Step 4 – Transfer the configuration into the new system
- Step 5 – Upgrade the transferred configuration
- Step 6 – Configure the individually transferred settings
- Step 7 – Perform a post-upgrade-migration system check

- Step 1 – Prepare both systems
- Step 2 - Transfer the Configuration
- Step 3 - Initialize the Configuration
- Step 4 - Manually Recreate Customizations
- Step 5 - Service the System
- Step 6 - Perform a Post-upgrade System Check

The detailed steps to upgrade upgrade migrate migrate the configuration are covered in this section.

Note: The old IONESPMPME system can keep running while the configuration is upgraded.migrated. However, you might experience some performance degradation if two systems are working with the devices.

Note: The procedural steps covered in this document do not include configuring new features in PME 8.2.