Charles Holt has over 30 years of experience working with Unix/Linux systems and storage solutions. He has extensive knowledge of HP-UX, LVM, Veritas Volume Manager, EMC storage arrays, and data replication technologies. Currently he works as a Senior Technical Architect at AT&T, where he designs storage systems and complex replication environments. Previously he spent over 12 years managing HP-UX systems and large Oracle databases using EMC, HDS, and EVA storage arrays. He also has experience with virtualization, having worked with VMware vSphere and NSX.