Migration of Jira Server to Data Center

[Mahmoud Haggag]

We have currently the following server products:

1- Jira Core

2- Confluence

We are targeting to deploy the corresponding Data Center offering of each.

For Jira Core, we are thinking of Jira Software.

I'm seeking a step-by-step guide to accomplish this and a reference to Infrastructure sizing.

[Edson Araujo]

Hello @Mahmoud Haggag ! Welcome to the Atlassian Community!

To upgrade your Server versions of Jira and Confluence, basically, you just need to follow the steps from the below articles: 

• For Jira, see this link
• For Confluence, see this link

Note that, as mentioned in those articles, if you have any third-party plugin/app installed in Jira and Confluence, you will need to make sure those are compatible with Data Center versions, and also, that you have a data center license for those as well. 

Also, note that if you are planning to move from Jira Core to Jira Software, you cannot use a "Jira Core" license, since those are different applications. 

Regarding your question about sizing, we have some articles that you might want to look at. The one below is a good start: 

• Jira Sizing Guide

Hope this helps! :)

[Mahmoud Haggag]

Hi @Edson Araujo , I’ve already checked that link but there is no details or any guidance on how to move or export/import the data from infra to another infra. Please advise further..

[Edson Araujo]

Hi @Mahmoud Haggag ! 

Thanks for clarifying that! To move your applications to a new infrastructure, please check the following articles: 

• Migrating Jira applications to another server

• Migrating Confluence Between Servers

[Mahmoud Haggag]

Hi @Edson Araujo .. That really helped me as a starting points. Now, I'm coming back with even more questions.

1. The first url did not address cross DB compatibility. i.e., What if I'm migrating from oracle to PostgreSQL ?
2. Atlassian Data Center migration plan - This url is talking about consolidating instances. Is it valid in my scenario?
3. Migrating Confluence to Another Database - This url is stating some limitations (The XML export built into Confluence is not suited for the backup or migration of large data sets). Please advise.

[Edson Araujo]

Hi @Mahmoud Haggag ! Happy to help!

Let's try to address your questions: 

1. About migrating from Oracle to PostgreSQL, in that case you will need to take a look at the following article as well: 

   • Switching databases (check the Migrating Jira's data to a different type of database server section)

   • You will also need to ensure that the database version you are migrating to is compatible with your current Jira and the new Jira version. You can check that in the Supported Platforms article (use the dropdown at the top to choose the correct Jira version)
2. Actually, that link discusses migrating from a single-node environment to a clustered environment, with more than one node for the same instance. If you are planning to have a single-node environment when migrating to Data Center, you can skip it. ;) 
3. Correct! Depending on the size of your dataset, you might need to work with a DBA to migrate the data from one database to another. In case you are migrating from one database type to another as mentioned above, you might need a third-party application to migrate the data. 

[Sunny Ape]

Hello @Mahmoud Haggag 

Have you tried this site?