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…
I have recently acquired a new computer without an operating system, and I wish to install Oracle Enterprise Linux version 9.1 on it. The ISO file required for the installation is located on an NFS file server, accessible through a network infrastructure. The hardware boots using uEFI, and I have a USB disk-on-key containing Ubuntu…
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 disclaimer: I use OEL for server-use when I can. A long support window, an enterprise environment, and yes, a very low rate of changes within the life cycle of the operating system makes it a very good candidate to hold services I do not want to fuss around, correcting configuration files on update or…
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…
