I have a customer currently running CCM 4.1. They have just purchased Unified Call Manager 5.0 appliance. Does anyone know if it is possible to use DMA to get the existing database off the CCM 4.1 server and to import it onto the new appliance? Any help or suggestions for a successful upgrade would be very much appreciated.
Yes, you should be just fine with using DMA for the 4.1 to 5.1 process. Have a look;
DMA migrates data for Cisco Unified CallManager and Cisco Emergency Responder, as specified in the following sections.
DMA assists you with the first step in migrating Cisco Unified CallManager data from versions 4.0(x) and 4.1(x) to Cisco Unified CallManager 5.1(1) by backing up this data in a format that Cisco Unified CallManager 5.1(1) can read. Cisco Unified CallManager 4.1(x) runs in a Windows environment, and Cisco Unified CallManager 5.1(1) runs in a Linux environment, so DMA exports Windows-based data to a format that Linux can import. The Cisco Unified CallManager 5.1(1) installation process converts the backed up data as needed for Cisco Unified CallManager 5.1(1), which completes the data migration.
DMA saves the data that it exports in a tape archive (TAR) file in a location that you specify.
You must install and run DMA on the Cisco Unified CallManager publisher server before you upgrade to Cisco Unified CallManager 5.1(1). If you make any Cisco Unified CallManager configuration changes after running DMA, the system does not retain these changes when you upgrade.
From this doc;
Cisco Unified CallManager Documentation Guide for Release 5.1(1)
At this location;
Hope this helps! CCM 5.1 may also be a better choice here anyways :)