Mårten Mickos has another solid exit under his belt. As the Finnish CEO of MySQL he helped build up the database system from an open-source project to a $1 billion exit to Oracle in 2008. Last night the news broke that Eucalyptus Systems, the California-based company he was appointed CEO in 2010, has been acquired by HP.

HP has been growing up its cloud services lately under the HP Helion brand. Mickos will join HP as senior vice president and general manager of the Cloud business, reporting to Meg Whitman, chairman, president and chief executive officer of HP.

The terms of the deal have not been disclosed, making it tough to put a number on the deal. HP, a publicly traded company, expects the acquisition to close in the fourth quarter of this fiscal year, where those numbers will likely be shared.

More information can be found in Eucalyptus’ press release.