San Diego-based cloud storage provider Nirvanix announced this morning that it has hired Tina Gravel as its new Vice President of Worldwide Sales. Gravel joins from Terremark, a provider of cloud computing services, which was acquired by Verizon last year. Nirvanix said that Gravel also has served at Data Return, SAS, Sybase and CSC. Gravel will head up sales strategy and global expansion in emerging markets and verticals such as healthcare, media & entertainment and financial services. Nirvanix operates a cloud storage service which is focused on the enterprise market.