Apps DBA Workshop

 Exadata KVM virtual machines not starting   We have a customer where all KVM machines were not starting.  The machines is encountering the following error during startup:   [root@dbnode1 ~]# virsh start dbnode1 error: Failed to start domain dbnode1 error: internal error: process exited while connecting to monitor: 2024-04-27Tqemu-system-x86_64: -blockdev {"driver":"file","filename":"/EXAVMIMAGES/GuestImages/hostname.com/System.img","node-name":"libvirt-9-storage","cache":{"direct":false,"no-flush":false},"auto-read-only":true,"discard":"unmap"}: Could not open '/EXAVMIMAGES/GuestImages/hostname.com/System.img': Permission denied   Cause: Due to the installation of some third-party security components libvirtd package and its libraries were not functioning properly.   Solution: Rsinstall the libvirtd package Update file:  /etc/libvirt/q...

In this blogpost we will see how we can provision the newly added disks to the guest VM and inside guest VM how we can add the newly provisioned disks to an existing mirrored zpool. Check the disks on controller Domain: root@IJRERPS72L:/dev/rdsk# echo | format Searching for disks...done 20. c3t5000CCA02B324091d0 /pci@302/pci@2/pci@0/pci@17/LSI,sas@0/iport@ff/disk@w5000cca02b324091,0 /dev/chassis/SYS/HDD20/disk 21. c3t5000CCA02B31C5A1d0 /pci@302/pci@2/pci@0/pci@17/LSI,sas@0/iport@ff/disk@w5000cca02b31c5a1,0 /dev/chassis/SYS/HDD21/disk 22. c3t5000CCA02B31D57Dd0 /pci@302/pci@2/pci@0/pci@17/LSI,sas@0/iport@ff/disk@w5000cca02b31d57d,0 /dev/chassis/SYS/HDD22/disk 23. c3t5000CCA02B30E6B1d0 /pci@302/pci@2/pci@0/pci@17/LSI,sas@0/iport@ff/disk@w5000cca02b30e6b1,0 /dev/chassis/SYS/HDD23/disk Disks 20-23 to be provisioned on guest domain.   Create logical disk service for new disks on the controller do...

If you encountered following Error while removing the disk from the Solaris 11 Environment then this post will definatley help you. root@oratest:~# ldm rm-vdisk vdisk2_sol114 orautestdb2 Guest LDom returned the following reason for failing the operation: Resource Information ---------------------------------------------------------- ----------------------------- /devices/virtual-devices@100/channel-devices@200/disk@2:a mounted filesystem "/.cdrom" VIO operation failed because device is being used in LDom orautestdb2 Failed to remove vdisk instance Cause: The virtual devices cannot be removed the virtual machine is up and running. root@oratest:~# ldm list NAME STATE FLAGS CONS VCPU MEMORY UTIL NORM UPTIME primary active -n-cv- UART 16 18G 0.6% 0.6% 82d 21h 38m orautestapp active -n---- 5001 48 32G 0.1% 0.1% 48d 3h 25m orautestdb ...