Removing a Virtual Machine from a Shared Repository
Use the
oakcli delete vm
command to delete the virtual machine and reclaim its
storage and resources.
When you no longer have use for a particular virtual machine, delete the machine.
When deleting the machine, you can specify the Oracle Database Appliance node
from which you want to remove the virtual machine. If this optional parameter is not
included, then the virtual machine is removed from both nodes.
• Delete the virtual machine from Node 1.
For example, run the following command to delete the
ovu22
virtual machine from
Node 1.
oakcli delete vm ovu22 -server 1
• Delete the virtual machine from both nodes.
For example, run the following command to delete the
ovu22
virtual machine from
both nodes.
oakcli delete vm ovu22
Performing a Live Migration for an Oracle Database Appliance Virtual
Machine
If your system meets requirements for live migration, then you can use the oakcli
migrate vm command to migrate a virtual machine from the currently running node
to another node.
Live Migration refers to the process of moving a running virtual machine between
physical machines without disconnecting the client or application running in the virtual
machine. Memory, storage, and network connectivity of the virtual machine are
transferred from the original host machine to the destination.
You must meet the following requirements before performing a live migration:
• The virtual machine must be on a shared repository and the repository must be
online on both nodes.
• The virtual machine must be running.
• The destination host must have the required resources (memory, CPUs and so on)
for successful migration.
• The destination host must have a CPU pool with the same name as the CPU pool
of the virtual machine that is being migrated.
Use the
oakcli migrate vm vmname
command to migrate a virtual machine from the
currently running node to another node.
vmname
is the name of the virtual machine to
be migrated.
When you run this command, the virtual machine must be online and corresponding,
and the shared repository must be online on both nodes. If a virtual machine is in the
migration process, then OAKCLI will display the virtual machine state as
MIGRATING
.
Chapter 12
How to Manage Virtual Machines on Oracle Database Appliance Virtualized Platform
12-30
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