Hi Team,
We have multiple JIRA instance in cloud like JIRA1.com JIRA2.com and JIRA3.com .But now we are going for on premises JIRA and purchased license from ATLASSIAN. .
1. We installed fresh JIRA on premises.
2. Successfully migrate one instance of JIRA1.com to on premises with Import and Export ,
But not sure how to import other 2 instances ? Because with Backup / restore all the existing data will be erased.
Please suggest how can we migrate all the projects in JIRA2 and JIRA3 instances.