I got the following error message when attempting to upgrade RPM packages: Oracle Linux 8 introduced a bug with a package called rpm-plugin-selinux (details: rpm-plugin-selinux-4.14.3-28.0.1.el8_9) which prevents RPM packages from being installed correctly, either by dnf/yum or manually. The solution, as shown in this Oracle community forum is to downgrade the package rpm-plugin-selinux like that:…
ZFS version 2.1.11 is supposed to work correctly with Oracle UEK 7. However, on update (and later – a reboot) – it broke. The driver cannot build using dkms, and the error message is something like this: If you look into /boot/config-`uname -r` output, and look for CONFIG_MODULES string, you will indeed find that it…
When using OracleASM in normal or high redundancy, a failed disk is nothing to be concerned with. However, when using AFD, there are several additional actions you need to take into account in order to replace the disk quickly and easily. It is imperative to understand that when using AFD, there are some unavoidable tasks…
Introduction Since Oracle GI version 11.2.0.3, Oracle have provided a clustered file-system called ACFS, based on the underlined technology Oracle ASM. This technology has provided a reliable-enough, although not free from bugs, clustered file-system, while Oracle OCFS2 (which had its own cluster framework: O2CB) has been abandoned and left to die. ACFS was a good-enough…
A nice and informative note about how to obtain OracleASM attributes, including “hidden attributes” can be found here. Including the special attribute “_rebalance_compact” which affects the post-rebalance ‘compact’ ASM operation, when altering DiskGroups (per-DiskGroup, of course). Just a reminder about this specific attribute – when ASM performs rebalance operation (adding or dropping disks) it attempts…
I have had a system with Oracle ASM diskgroup from which I needed some space. The idea was to release some disk space, reduce the size of existing partitions, add a new partition and use it – all online(!) This is a grocery list of tasks to do, with some explanation integrated into it. Overview…
