On this activity we are going to migrate a 19c NON-CDB with Encryption/TDE into a 26ai PDB and do the upgrade.Since in 26ai is manadatory to have PDB’s, and YES we could migrade 19c NON-CDB into a 19C CBD reusing the datafiles and do the upgrade inplace, but that would make a rollback more complicated.For... » read more
On this activity we are going to migrate a 19c NON-CDB into a 26ai PDB and do the upgrade.Since in 26ai is manadatory to have PDB’s, and YES we could migrade 19c NON-CDB into a 19C CBD reusing the datafiles and do the upgrade inplace, but that would make a rollback more complicated. For that... » read more
On this post we are going to go step-by-step thorugh the process of upgrading Oracle Restart from 19c to 26ai. We are going to install here: You can download the Grid Home from here. On Oracle 26ai, ASMFD is not supported, so make sure if you are using it, migrate using this guide. First we... » read more
Since Oracle 26ai does not support Oracle Filter Drive, this is the process of migrating from ASMFD to ASMLIB v3. This is the high level plan we are going to follow: 1. Verify AFD disks 2.Verify compatible parameter (Oracle recommends compatible.rdbms >= 12.2.0.1.0) 3. crsctl stop has 4. acfsload stop 5. asmcmd afd_deconfigure 6. Install... » read more
On a new installation where we have already HAS/GI running and with patch level: We had this error while creating a new DB: Confusing, right? Now let’s check the dbca log: So the fix in this case: After this, we can create DB’s without issues. Post Views: 1,628
Few days ago we ran on RMAN a few deleted of expired archive logs/backups and all was clear under RMAN.However, when we ran a level 0 backup, we kept receiving failures with this: We checked and FRA was almost free. Diskgroup usage also almost free. RMAN did not have anything expired. But digging a bit... » read more
On a Single Instance Standalone Database, If you want to stop/start everything that runs on a ORACLE_HOME, you can run this: But why sometimes it does nothing? Well.. .this is where the magic of N or Y at the end of the line in /etc/oratab. Just change to Y and process will stop/start DB and... » read more
On this article we are going to do a silent install of Oracle Enterprise Manager Clod Control 24ai on a Oracle Linux 8 server.First we need an oracle DB where the repository will run. You can use a non-cdb, but since starting from 26ai, CBD/PDB is a must, we are going to use a 19c... » read more
From Oracle database 23ai/26ai, flashback logs can be stored outside the fast recovery area. This allows us to place flashback database logs on different storage, and means they are not competing for space with the rest of the contents of the fast recovery area. First we need a directory to place logs: Set destination and... » read more
We had someone complaining saying why v$flash_recovery_area_usage is empty when DB is in archive log mode? Should not list everything there? This has been replicated on 26ai, but it is valid on previous releases. Answer is simple, log_archive_dest_1 is not set properly, lets replicate on a test db…. Initially ok, right? well….. Since this is... » read more