On the 15th of May 2026, Oracle finally released the possibility to set individual percentage allocations for the ASM Diskgroups +DATACn, +RECOCn and optionally +SPRCn. This feature can be used for new and existing VM Clusters. In this blog post, I will demonstrate how to use the new feature.
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Alles Rund um das Datenbanksystem von Oracle.
ExaCC: Rollback Guest OS Update
If you have trouble after you upgraded the OS image version of your VM Cluster nodes to the latest minor version or to a new major version, one possible solution would be roll back the update. In this blog post I will demonstrate how to do this.
Continue readingExaCC: The dataguard operation failed because the primary database wallet was not found
In this short blog post I want to write about an issue I ran into during the creation of a new Data Guard for a long-existing database.
Continue readingExaCC: Prepare Infrastructure for Exascale
In December 2024 Oracle released Exascale, a new storage architecture optimized for Cloud deployments, for Exadata Cloud@Customer environments. The initial release was limited to a very small number of OCI regions. Nowadays the availability of Exascale is not limited anymore. In this blog post I will go through all required steps to prepare an Exadata Infrastructure for Exascale. Before you start check the requirements in the documentation.
Continue readingExaCC: Continue failed upgrade of Grid Infrastructure to 23ai
In this blog post I will show how to identify and fix the root cause of a failed Grid Infrastructure upgrade to 23ai and how to complete the upgrade to get the VM Cluster back to the AVAILABLE state.
Continue readingExaCC: Upgrade Grid Infrastructure to 23ai using OCI CLI
In May 2024 Oracle announced the general availability of Oracle 23ai on ExaCC. In this blog post, I will upgrade an existing VM Cluster to 23ai using the OCI CLI.
Continue readingDrop database link in different schema
In this blog post, I will show different ways to drop a private database link of a different schema without connecting to this schema.
Continue readingExaCC: Database Service Events
In April 2022, Oracle released a new feature called Database Service Events for the ExaCC platform. This feature collects telemetry data of VM cluster nodes and sends a notification when a health issue is detected.
Continue readingExaCC: Single instance databases
When a new database is deployed on ExaCC, all nodes of the VM cluster are considered. But sometimes a multi-instance database is not required, for example for DEV or non-business critical databases. In this blog post, I will demonstrate how to handle this requirement with dbaascli.
Continue readingExaCC: Oracle Home deployment fails with DBAAS-60018
In this blog post, I am going to describe a strange error with OPatch while I was trying to deploy a new Oracle Home to one of our VM clusters.
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