Dhiraj Kumar's Blog

Category: oracle

  • OPATCHAUTO-72043 -Failed to apply the Patch

    Some time ago, I attempted to apply a patch to upgrade my 2-node Oracle RAC Grid Infrastructure from version 19.24 to 19.27. However, I encountered the following error: SEVERE [1] com.oracle.glcm.patch.auto.OPatchAuto – OPatchAuto failed.> com.oracle.glcm.patch.auto.OPatchAutoException: OPATCHAUTO-72043: Patch collection failed.> OPATCHAUTO-72043: Failed to create bundle patch object.> OPATCHAUTO-72043: Please verify the patch supplied.> at com.oracle.glcm.patch.auto.db.integration.model.plan.PatchingProcessInitializer.initializePatchPackageBag(PatchingProcessInitializer.java:97)> at…

  • How ToResolved a Duplicate Diskgroup Issue in Oracle RAC 19c (19.27)

    Recently, I encountered a situation in a 2-node Windows RAC 19c environment running the latest 19.27 Grid Infrastructure version.I had added a disk back using the force option. However, I mistakenly did not specify the disk name, which resulted in the creation of a duplicate disk associated with a new disk group (Group Number 0).…

  • ASM Disk Migration Error: Sector Size Mismatch Between RHEL 7 and RHEL 8 ([512] vs [4096])

    Environment Details: We are migrating a standalone Oracle Restart-based database server from RHEL 7 to RHEL 8. The existing ASM disks were created using ASMLib 2 on RHEL 7. Post-migration steps included: Mounting the NetApp LUNs (created in RHEL 7) onto the new RHEL 8 (or RHEL 9) server. Running the following commands: All above…

  • Introduce GRUB As The Most Commonly used Bootloader In Linux.

    GRUB is a bootloader used in most Linux distributions. A bootloader is a small program responsible for loading the operating system into memory and starting it. GRUB supports multiple operating systems, making it an excellent tool for dual-boot setups. There are two main versions of GRUB: GRUB 2 offers better support for modern filesystems, modularity,…

  • Storage AFD:UNMAP Protocol With ASM Disk

    In Oracle storage environments using ASM (Automatic Storage Management) with AFD (ASM Filter Driver), the UNMAP protocol plays a key role in space reclamation—especially when you’re using thin-provisioned storage such as SSDs or SAN systems that support SCSI UNMAP or NVMe deallocation. What is the UNMAP Protocol? The UNMAP protocol is a SCSI command (or…

  • Installing ASM Library Version 3.1 (ASMLib V 3.1) for Oracle 19c on Linux 8.3 or later in aarch64

    ASM Library (ASMLib) is a support library for the Oracle Automatic Storage Management (ASM) feature. It simplifies storage management and enhances Oracle ASM functionality. Prerequisites Required Packages In this demonstration, I installed the ASMlib V3 package on Oracle Linux 8.9 with the aarch64 architecture. Therefore, you need to download the package that matches your Linux…

  • Getting ORA-02097 and ORA-15014 On Setting asmcmd dsset ‘AFD:*’ In Oracle RAC

    I was attempting to migrate Oracle ASM UDEV-managed disks to Oracle ASM Filter Driver (AFD). Although I followed all the documented steps for migrating the disks, I encountered the following error when trying to set the disk strings: This error occurred specifically during the step where I attempted to configure the ASM disk discovery string.…