Few companies are as crucial to modern life and business as telecommunications providers. They connect families to families, corporations to customers, and citizens to all the information they need to be part of a thriving society. Because telecommunications are an industry with 24/7
demand, it is vital for providers to minimize downtime even as they upgrade their technology to better serve customers. And when a telco company is the primary provider in their state, avoiding disruption becomes even more important.
It all started with a storage refresh. A major telco provider needed to migrate critical block data from aging Dell vMax storage to two new Dell Unity arrays in nine months. This Dell-to-Dell storage upgrade promised to better protect essential data, improve performance, and increase energy efficiency. The customer chose the Cirrus Data Professional Services team to manage its data migration, with driving factors in the choice being the any-to-any connectivity of Cirrus Data technology as well as the team’s track record of handling complex migrations.
However, the seemingly straightforward Dell-to-Dell data migration became complex. First, there was a communication disconnect between the telco company and a vendor over defining unused Logical Unit Numbers (LUNs) that needed to be migrated. This became a problem during the cutover phase, as the Cirrus Data team learned some of those LUNs were needed as they were still assigned to the hosts. The Cirrus Data experts stepped up by re-adding the required LUNs and migrating them to complete the cutover successfully. Had the Cirrus Data team not done this correctly, the provider could have seen major service issues that would have caused significant disruption.
Second, the MultiPath Input Output (MPIO) from another vendor had not been set up correctly. This caused a major issue in the first phase of the data migration. To fix this configuration error, the Cirrus Data team spent the entire night working closely with the vendor to find and implement a solution. Cirrus Data’s team then coordinated communication between the vendor, the provider, and the Dell team to ensure all hosts and destination arrays were correctly configured going forward.
Despite the unforeseen complexities, the Cirrus Data team successfully executed the storage refresh inside the nine-month timeframe and with minimal downtime. By managing vendor and configuration issues and overseeing the entire migration, Cirrus Data’s team simplified the telco provider’s experience from beginning to end. Using its new Unity arrays, the telco provider can now better serve its customers through improved
efficiency and storage performance.