Slowness of the Jira application caused by technological obsolescence

[Edgar Salgado Gallardo]

Good morning, a few days ago we detected slowness issues in the application, which we escalated with Atlassian. They told me it was a latency issue to the database.

When we contacted our DB, they told us the database needs to be migrated due to obsolescence. Our question is the following:

At the server or Jira node level, is it advisable to keep the same IP address when migrating? Or is it better to change the IP address during migration?

We have two nodes, but it is advisable to request new IP addresses. Can we add them as new nodes and, once the configuration is complete, simply deactivate the old IP addresses?

The same applies to the database. Is it advisable to keep the same IP address?
Is it better to request a new IP address and configure it as a replica? Once replication is correct, set it to productive and disable the obsolete IP addresses.