Rac | 5glinux

Oracle RAC 26ai on Harvester: Shared Disks as lun: Passthrough (Like VMware RDM) or Emulated Shareable Disks

Two ways to attach Oracle RAC shared disks on Harvester, tested on one 26ai cluster on Oracle Linux 9: SCSI passthrough (lun:, like a VMware RDM) and emulated shareable disks with serials (like multi-writer VMDKs). Includes the install without workarounds, failover timings in both modes, an ORAchk score of 92/100, a comparison against Oracle’s installation guide, and how to restrict the VMs to licensed hosts.

Oracle RAC 19c on Harvester: Shared SAN LUNs, Failover, and What to Pin

A two-node Oracle RAC 19c cluster running as Harvester VMs on shared NetApp iSCSI LUNs: how the disks are attached, how udev finds them, how long failover takes after a node is force-stopped, and which installer workarounds come from the Oracle and OS versions rather than from Harvester.