English to Chinese Tech/Engineering IT (Information Technology)

Context:
With exponential growth in the data environment, it is increasingly important to achieve “always-on” data operations for mission-critical applications. SQL Server 2008 has broken new ground in always-on technologies by including database mirroring and robust backup and restore functionality “out-of-the-box”. Microsoft SQL Server 2008 helps reduce downtime on business-critical databases with a wide range of high availability solutions while still delivering cost-effective high performance.

out-of-the-box有即购即用开包即用不同寻常之意,不知道在这里在作何解.另外,不明白它在这里是作为名词还是作为形容词使用.
有劳各位指教,多谢