Scheduler Job does not exist (not visible) in Snapshot Standby Database
Hi everyone! Hope you are doing good! I got a call from a client during their DR test. We do know that usually DR test means when the entire workload…
Query on Active DataGuard failing with ORA-12801 and ORA-03254
Hi everyone, Hope you’re doing good. I was working with a client where they have their DR environment running with Active DataGuard, ie, a physical standby database opened in read…
Cluster Startup fails with CRS-41053
Hi everyone, Hope you’re doing good! A few weeks ago, DBA team of a client reached up to me and told me that they have a 2-node cluster where the…
opatch rollback cleaning up content of $GRID_HOME/jdk folder
Hi everyone, Hope you’re doing good! A few days ago, a client reached out to me because they had some issues during the rollback of a JDK patch that was…
STARTUP MOUNT failed with ORA-00210 ORA-00202 ORA-27086
Hi everyone, Hope you’re doing good. I’m working for a client which has Oracle DB for SAP applications. Those DB’s are not using RAC, yes, I know 🙂 SAP does…
Shell Script to monitor Oracle Enterprise Manager Agent
Hey everyone, Hope you’re doing good. Sometime ago, an old client called saying that they have migrated their Linux servers from RHEL6 to RHEL7. They have done a new installation…
Shell Script to create weekly backups for TDE Wallet
Hey everyone, Hope you’re doing good. As already discussed in the blog, every environment which uses TDE (Transparent Data Encryption), a wallet is needed to store the encryption key. The…
Why my Data Guard Physical Standby always had Apply Lag greater than 30 minutes?
Hey everyone, Hope you’re doing good. I had a call with a client some days ago, they have a Data Guard Physical Standby running in protection mode Maximum Performance. This…
