This migration was performed for a state government’s Integrated Enterprise System division. The migration itself had several challenges, notably the use of 72 AIX with VIO servers performing web, application, and database functions. These systems are notoriously sensitive to target port changes, and prior to the migration, some hosts were down to a single path to storage due to environment issues. When migration environments are this complicated and sensitive, it is essential to find a solution that is simple, efficient, and eliminates risk.
Cirrus Data Solutions’ DMS was the ideal solution for this state government’s Integrated Enterprise System division and its sensitive environment. During the storage-side insertion process, no hosts saw any impact to production. Additionally, the process was simplified in that after insertion, DMS autodiscovered all the hosts and LUNs and associated them with each other automatically. Since not all 72 hosts could be cutover to new storage at the same time, the migration project was conducted in waves over several weekends. Initially, this project plan called for only a moderate amount of data to be migrated. The customer was astounded by how seamless the migration process became using DMS; and additionally, by the fact that DMS did not impact their current production environment.
As a result, after the initial phase was complete, they purchased additional migration capacity to include more data LUNs into the project. With help from the partner, the customer’s IT team was able to complete the entire project with minimal support from CDS apart from some assistance during the DMS insertion process.