PeopleRainStor Adds David Schwab to BoardSan Francisco-based “big data” database company RainStor has added David Schwab to its board of directors. Schwab is a managing director at Sierra Ventures.ByCust Serv22 October 2012•3 mins readJavaScript is required to read this article. Please enable it in your browser and reload the page.PeopleNorth AmericaUSBriefs