Oracle DBA

USABLE_FILE_MB in v$asm_diskgroup can be negative for a number of reasons. The most common reason is that the disk group does not have enough free space to meet the redundancy requirements of its files. For example, if a disk group is configured with NORMAL redundancy, then each file in the disk group must have two […]

Oracle Real Application Clusters (RAC) One Node is a high availability solution for Oracle Databases that runs on a single server. It is designed to provide the benefits of RAC, such as failover, scalability, and performance, without the need for multiple servers. RAC One Node works by creating two instances of the database on the […]