Zmanda, Sunnyvale, Calif. company that offers open source backup and recovery software, said it has raised $8 million in a second round of funding.

The backing is the latest in a string of investments in open source we’ve covered lately, including in SnapLogic and Mulesource.

The round was led by Helion Venture Partners, and existing investors BlueRun Ventures and Canaan Partners.

The company sells a general corporate version of its backup and recovery software, as well as version designed specifically for MySQL databases.