DevOps is an emerging concept and methodology for bridging the gap in the process of software development. At present, applying DevOps to data analytical system (DAS) is increasingly embraced. But the characteristics of this system, such as data protection, always leads to a series of constrains. It results in more difficulty of conducting DevOps on DAS. Moreover, there are no DevOps solutions for reference. Therefore, exploring DevOps for DAS is valuable. In this paper, we illustrate DevOps demands of DAS from different perspectives, and constantly emphasize the importance of automation toolchain. Based on them, a process model for DAS DevOps (D2Ops) is proposed to clarify participants activities. In order to improve the efficiency, we attempt to integrate the automation toolchain. With the consideration of stability, six generic process components are designed to support this model. They can be the selection criteria for specific automation tools. We also present a reference facility based on these generic process components, and illustrate its implementation combining with a practical case. Furthermore, for a better D2Ops practice, the cross-cutting concerns are considered from the perspective of its data intensive trait.