Intro Every time I think I’m done with my ZDM troubleshooting series, a new topic pops up :). I have also learned that every migration is distinct and brings its own unique challenges, so I have decided to keep the series open-ended. In this post, we will discuss the steps you should take when a …
Intro This is the last of my troubleshooting series related to ZDM where I have accidentally become an unofficial QA tester for ZDM :). After describing scenarios in previous posts where ZDM service was crashing or DG configuration was failing. I will, in this article, explain why my broker switchover step failed the online physical …
Read more “ZDM troubleshooting part 3: Migration failing at ZDM_SWITCHOVER_SRC/ hack”
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 …
Read more “ZDM troubleshooting part 2: Migration failing at ZDM_CONFIGURE_DG_SRC”
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 …
Read more “ZDM troubleshooting part 1: VM causes ZDM service to crash (plus fix)”
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 …
Read more “ZDM installation error in Oracle Linux 8 (Failed to initialize MySQL) & how to fix it”