Thomas Phelan is cofounder and chief architect of BlueData. Previously, Tom was an early employee at VMware; as senior staff engineer, he was a key member of the ESX storage architecture team. During his 10-year stint at VMware, he designed and developed the ESX storage I/O load-balancing subsystem and modular pluggable storage architecture. He went on to lead teams working on many key storage initiatives, such as the cloud storage gateway and vFlash. Earlier, Tom was a member of the original team at Silicon Graphics that designed and implemented XFS, the first commercially available 64-bit filesystem.