Wetherhold and his team met with Skytap and explained that they needed to move four Power Systems, which were the ERP system workhorses, and more than forty x86 machines where front-end and other line-of-business systems resided, along with roughly 29 terabytes of data.
Realizing that Intertek-PSI had a very complex environment and an extremely large amount of data that needed to be moved, Skytap brought in its partner Meridian IT, a leading global IT services company, to help plan and manage the migration.
According to Wetherhold, “It was an enormous amount of data, to the point where it was almost unreasonable to think that we could move that much data across the public Internet, but Meridian figured out how to do that and how to do it successfully.”
Tom Horan, VP, Cloud and Managed Services Sales for Meridian, said, “Intertek-PSI needed partners that could really understand its business and move quickly to deploy a solution.”
The Meridian team decided on an approach using a state-of-the-art Commvault backup system to transfer x86 workloads and FTP for the AIX workloads over a 1GB private network connection. The migration followed a four-step model:
Step 1: A team of representatives from the three companies, with support from the existing service provider, worked hand in hand to establish a plan and design, followed by configuration of Skytap environments, networking and VPNs. Then, a test copy of the non-production, dev/test workloads were moved into Skytap to:
- Validate and refine the migration process
- Allow key business resources to validate the entire application and infrastructure landscape
- Discover areas that were unknown or not considered in the original planning. For example, separate groups within the existing provider were responsible for applications and databases, and some databases did not get copied on the first try.
Step 2: After fine-tuning the process and timing, the dev/test workloads were moved again. Unit and systems tests were performed to confirm application functionality and performance in Skytap and to verify that migration could occur within the planned outage window.
Step 3: After successfully migrating the dev/test workloads, production workloads were moved over a weekend, without impacting users. Because the migration was performed as a backup, the team only had to perform an incremental backup and restore in Skytap to complete the cutover.
Step 4: Once the migration was complete and systems brought up inside Skytap, Intertek-PSI was able to run its business exactly as it had before the move.