ols.pl – A script to display GI/RAC Flex Cluster

Oracle Clusterware command olsnodes displays node number/status/type/VIP, this is useful but not enough. To clearly display a node’s functional role in 12c, including but not limited to CRSD PE Master/Standby, CTSS/UI/ONS Master as well as Leaf-to-Hub connections etc, ols.pl is written to automatically present this info in a clear and handy way. You can download the […]

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Grid Naming Service in Oracle RAC

When we use Oracle RAC, all clients must be able to reach the database. All public addresses, VIP addresses and SCAN addresses of Cluster must be resolved by the clients.And GNS[Grid Naming Service] helps us resolve this problem. GNS is linked to the domain name server (DNS) so that clients can resolve these dynamic addresses […]

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Converting Standard to Flex Cluster

Introduction Oracle Real Application Cluster (RAC) is a well-known product among Oracle’s solutions to maintain high availability of your business data. Oracle RAC allows the work load to be shared among all the cluster nodes, with N-1 tolerance configuration in case of node failures, where N is the total number of nodes. Oracle RAC is […]

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Converting Standard to Flex ASM

Today we are going to have a look on converting a standard cluster to flex cluster. I wish this information is useful for you.Oracle Flex Clusters contribute a platform for Oracle Real Application Clusters databases with stupendous numbers of nodes, to support massive parallel query operations. Oracle Flex Clusters also provide a platform for other […]

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File Group in a Flex Disk Group

I must thank my fellow DBA Franky Weber Faust for his publication in his blog. In the goal here is to know a bit more about the Flex Disk Group. Let’s see here what a File Group is. In a Flex Disk Group we can separate our databases, be they PDBs, CDBs or non-CDBs, in different File Group. Each […]

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