ROHA is a feature of PowerHA clusters that allows dynamic allocation and deallocation of resources to cluster nodes.
More details in the following article:
https://community.ibm.com/community/user/power/blogs/michal-wiktorek/2024/07/04/powerha-roha
[PL] Link do polskiej wersji:
https://www.linkedin.com/pulse/ibm-powerha-systemmirror-wprowadzenie-do-roha-michal-wiktorek-hz6bf