Post RDM disk expansion, VM unable to power on when shared disk added back to cluster VM nodes.
"Here host is unable to lock the shared vmdk whereby IO commit is failing in absence of disk controller bus sharing. "
VMware vSphere ESXi 7.x
VMware vSphere ESXi 8.x
The ESXi host is unable to lock the shared vmdk if the shared RDM vmdk is incorrectly added back to the VM to a SCSI controller which is not configured for disk controller bus sharing.
ESXi is unable to lock shared VM disk if it is not assigned to a SCSI controller with bus sharing configured.
For example: "the VM shared disk is configured with scsi0:x instead of scsi1:x. "
Error snippet:
File system specific implementation of Ioctl[file] failed Failed to start the virtual machine. Cannot open the disk '/vmfs/volumes/6401c851-6be774c5-60f5-0017a4773c40/vm-xxx/vm-xxx_4.vmdk' or one of the snapshot disks it depends on.
Error stack:
Cannot open the disk '/vmfs/volumes/6401c851-6be774c5-60f5-0017a4773c40/vm-xxx/vm-xxx_4_4.vmdk' or one of the snapshot disks it depends on.
Failed to lock the file
File system specific implementation of OpenFile[file] failed
Power off both cluster VM nodes.