Resolve Oracle PRVF‑7573 (Insufficient Swap)
While installing Oracle GI / Database 19.3 on an Oracle Cloud Infrastructure (OCI) & Azure VM’s running OL 7/8 & RHEL 7/8, I ran into this classic prerequisite failure: The Cluster Verification Utility clearly flagged it: Result: Oracle…
Fixing OPatch Error: “Prerequisite check ‘CheckActiveFilesAndExecutables’ failed” — Real Production Experience
Patching Oracle environments is usually straightforward — until it isn’t. Nothing kills a maintenance window faster than OPatch stopping with: Prerequisite check “CheckActiveFilesAndExecutables” failed I recently hit this repeatedly while…
Oracle ACFS Commands Every DBA Needs
Oracle ACFS is a scalable, multi-platform file system built on ASM, supporting storage for databases, applications, binaries, and logs across single-instance (Oracle-Restart) and RAC setups. Oracle Automatic Storage Management Cluster File System (Oracle…
Oracle ASM Queries Every DBA Needs
Automatic Storage Management (ASM) is the heart of Oracle database storage. Regular monitoring helps prevent outages, balance I/O, and plan capacity effectively. 1. Diskgroup & Disk Health Check Disk Group Space & Health Disk Level Details — Most…