First published on MSDN on Aug 17, 2018
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This guide provides recommendations and tools for migrating virtual machines (VMs) in the A8 to A11 sizes. KR Kandavel of AzureCAT tells you how to migrate these legacy HPC clusters into new VM series—such as H, D, E, and F—for better performance with reduced cost. To help reduce downtime for your workloads, he shares tools and scripts to help you automate the migration process. 
As more powerful high performance computing (HPC) clusters become available in Microsoft Azure datacenters, we recommend assessing your workloads and migrating the virtual machines (VMs) in the A8 to A11 sizes. These legacy HPC clusters can be migrated into new VM series— such as H, D, E, and F—for better performance with reduced cost. Newer datacenters include the next generation of Azure HPC VMs known as the H series, which are intended for high-end computational needs, such as molecular modeling and computational fluid dynamics. The main difference between the A series and H series is improved cluster performance. The H series clusters have more modern cores and greater capacity.
Authored by KR Kandavel. Edited by Nanette Ray. Reviewed by AzureCAT.
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