1. Walk-through with Test management solution in #jira by Harshaa Bhole

2. User success story by Keshav Narkhede - Deploy Atlassian's software in your own data center with clustered failover and more to support large and mission critical deployments.

Zephyr for JIRA is a native application that exists in JIRA and brings quality test management capabilities to any JIRA project. ... The detailed testing metrics can be tracked via customisable Zephyr gadgets. Zephyr provides multiple deployment options: Zephyr for JIRA Cloud/server/DC.