SCRIPTS
Real Builds. Real Challenges. Real Solutions.
Practical database knowledge drawn from hands-on installations, configurations, migrations, troubleshooting,
high availability, performance tuning, and cloud environments.
EXPLORE TOPICS
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Oracle ASM Day-to-Day Operations – ASMCMD, Oracle ASMLib and SQL*Plus
A practical Oracle ASM command reference covering ASMCMD, Oracle ASMLib, SYSASM disk group administration, disk management, and ASM rebalance operations.
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Automating Daily Oracle ASM Health Checks with a Shell Script
Monitoring Oracle ASM is an important part of maintaining a healthy Oracle database environment. Disk group capacity, disk status, rebalance operations, I/O distribution, voting files, and ASM compatibility settings can…
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Oracle 19c on OL 8.10 — Silent Install, ASM, Restart & RU 19.32
After documenting my Oracle Database 19c deployment on RHEL7.9, I wanted to perform and document another completely tested implementation on Oracle Linux 8.10. This article covers the complete journey from…
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Oracle 19c on Azure RHEL7.9 — Silent Install, ASM, Restart & RU 19.32
A hands-on Oracle 19c deployment on Azure RHEL 7.9 using silent installation, ASM, Oracle Restart, and RU 19.32, including Azure RHUI, CVU troubleshooting, DBCA, and final validation.
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In-Place Patching Oracle Grid Infrastructure 19.3.0 to 19.32.0 on RHEL8.10 Before Installation
Can an Oracle Grid Infrastructure 19.3.0 home be patched to 19.32.0 before completing the Grid Infrastructure installation? I tested this approach on Microsoft Azure using RHEL8.10. The idea was straightforward:…
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In-Place Patching Oracle Grid Infrastructure 19.3.0 to 19.32.0 on RHEL 7.9 Before Installation
After testing the Oracle Grid Infrastructure 19.3.0 → 19.32.0 in-place patching approach on RHEL 8.10, I wanted to test the same approach on RHEL 7.9. The objective was straightforward: Start…
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Oracle 19c on OL9.8 – Silent Install, ASM, Restart & 19.32
A practical Oracle 19c build on Oracle Linux 9.8 in OCI using silent install, Oracle Restart, ASM, and RU 19.32, with real troubleshooting and final validation.
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Oracle 19c GoldImage Install on OL9.8 — Restart, ASM & 19.32.0
Deploy Oracle 19c Gold Images on OL 9.8 with pre-patched 19.32 Grid and Database Homes, Oracle Restart, ASM, DBCA, and real troubleshooting.
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Fresh Oracle 19c Home Install on OL8.10 with AutoUpgrade
A hands-on walkthrough of creating a fresh Oracle Database 19c Home at Release Update 19.32 on Oracle Linux 8.10 using AutoUpgrade, Gold Image, OPatch and OJVM.
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Switchover, Failover & Reinstatement Using Data Guard Broker (DGMGRL)
Test Oracle 19c Data Guard role transitions using DGMGRL, including planned switchover, manual failover, reinstatement of the former primary, Broker log monitoring, and final validation.
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Configure & Manage Data Guard Using Data Guard Broker (DGMGRL)
Configure and manage Oracle 19c Data Guard using Data Guard Broker and DGMGRL, including Flashback, Broker files, Primary and Standby registration, enablement, and final validation.
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Oracle 19c Standby & ADG — Your Smooth Configuration Journey
Build an Oracle 19c Physical Standby and enable Active Data Guard with RMAN Active Duplicate, redo transport, redo apply, and READ ONLY WITH APPLY.
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Oracle 19c on OL 8.10 — Silent Install, Filesystem Storage & 19.32 RU (No GI/ASM)
A hands-on Oracle 19c installation on Oracle Linux 8.10 without Grid Infrastructure or ASM, using silent installation, filesystem storage, OMF, RU 19.32 patching, and DBCA database creation.
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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…
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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…
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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…
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About
Chakravarthy
ORACLE DBA
I build high‑availability Oracle database systems, lead massive cloud migrations, and tune performance at scale. RAC, Data Guard, Azure & OCI, automation — if it keeps data fast and resilient, it’s my space.
📍Toronto, CA