ZDM troubleshooting part 2: Migration failing at ZDM_CONFIGURE_DG_SRC

Intro I didn’t anticipate to have a series of posts around ZDM, but I had few issues that were worth sharing so here I am. This post will describe what caused a failure of an online physical migration ExaCC right at the Data guard configuration phase. The good thing about ZDM, is as soon as …

ZDM troubleshooting part 1: VM causes ZDM service to crash (plus fix)

Intro Zero downtime migration (ZDM) is the ultimate solution to migrate your Oracle database to Oracle Cloud. I recently started using it quite a lot during  On-Prem to Exadata at Customer migrations. In my last blog post, I already shared tips about a ZDM installation error related to MySQL. This time, I’ll describe why my …

ZDM installation error in Oracle Linux 8 (Failed to initialize MySQL) & how to fix it

Intro Zero downtime migration (ZDM) is one of the best option available to migrate your Oracle database to Oracle Cloud. Automation and simplicity are among its strong benefits beside zero downtime feature. Although migrating in OCI is the classic use case(see Oracle migration & integration specialist certification), I had the chance to try a different …

How to remote clone a PDB from a READ ONLY refreshable PDB (tips & tricks)

Intro I didn’t know I had that many things to write about refreshable PDB clones, but I do like the techno and how useful it can be to application teams that want to replicate QA environments out of their prod database very quickly. After showcasing how to automate the refresh of a PDB clone using …

ExaCC dbaascli command with mysterious PILOT error when creating a PDB

Intro I lately had a silly error while running dbaascli on an ExaCC cluster but the java output was not helpful at all.  This is a super short post that shows where to find dbaascli execution logs and also an example of what can break your command execution depending on who runs it. My error …