GlassHouse Technologies raises $6.4 million

GlassHouse Technologies has raised $6.4 million in a second round of funding from current investor Sigma Partners and new investors GrandBanks Capital and JAFCO Ventures, the company announced this week. Boston-based GlassHouse Technologies, a storage and backup consulting and maintenance company, has raised a total of $8 million. The company plans to use the money to increase sales.