RainStor Database Technology Embedded Within HP Investigation Solution. I don’t know how many people have a need for investigation solutions, but there are certainly manz who have some requirements that point into the same direction, namely providing on-line (SQL) access to large amounts of relatively structured information (think logs or messages) for a long time (up to ten years or more). The announcement is also interested given that HP is probably still looking to grow its DB portfolio, so maybe there’s a new acquisition ahead if this partnership works out?