You can install RMsis on Jira Data Center in a cluster or as a standalone (non-clustered) installation. This guide applies to clustered as well as non-clustered Data Center installations.
You'll want to make sure you follow these steps in order:
1. Get to know RMsis (Data Center)
RMsis - Requirements Management for Jira is an enterprise-class application that helps you to Capture, organize, analyze, and document different types of requirements, establish forward and reverse traceability, manage changes across the development lifecycle, and comply with large and complex contracts effectively.
RMsis requires its own independent database. At present, it supports MySQL, PostgreSQL, Oracle, or Microsoft SQL servers. A detailed description of database configuration is mentioned here
Reverse proxy changes
RMsis requires some additional entries to be included in the reverse proxy operations. By default, RMsis will be configured with HTTP on port 3060 without any proxy settings. In order to deploy RMsis JIRA DC, you will have to configure and enable Reverse Proxy.