This blog is a collection of articles on analyzing and troubleshooting for all system and database administrators. These guides come from my experience, I hope they can help everyone.
SYMPTOMS The alert message looks like EM Event: Warning:TEST_PDB1 – Total global cache block lost is 15. Host=db-test01.local Target type=Database Instance Target name=TEST_PDB1 Categories=Error Message=Total global cache block lost is… Read more »
Oracle RAC? Oracle Real Application Clusters (Oracle RAC) is the only solution to build an active – active cluster using shared storage for your Oracle database. Up to Oracle 18c… Read more »
History Since December 2015, Oracle released Oracle Standard Edition 2 (SE2), replacing the previous Standard Edition (SE) and Standard Edition One (SE1) releases. Customers on versions before 12.1.0.2 (running Standard… Read more »
In this article also i will try to Oracle 18c advantages and disadvantages. I will try to explain the plans of future oracle releases which has explained by CTO of… Read more »
BACKGROUND The Oracle Cluster Registry (OCR) contains important cluster and database configuration information for RAC and Oracle Clusterware. One of the Oracle Clusterware instances in the cluster, the CRSD master,… Read more »