Clusterware

How to Resolve CRS-4640: Oracle High Availability Services is already active

by Ed Chen
March 7, 2023February 15, 2023

CRS-4640 We observed that osysmond.bin was taking too much memory and the usage of SWAP was increasing. At this moment, to prevent the server from… Read More »

How to Restore OCR and Voting Disk

by Ed Chen
June 30, 2019February 21, 2023

There're 2 procedures of restoring OCR and voting disk in this post. They are: Restore OCR and Voting Disk For 12c Clusterware Restore OCR and… Read More »

How to Backup OCR and Voting Disk

by Ed Chen
June 16, 2019December 10, 2022

In this post, I will introduce some ways to backup Oracle Cluster Registry (OCR) data and voting disk in case of losing all configuration. Backup… Read More »