How to Manage High Availability on Oracle Database
Appliance Virtualized Platform
Use the
oakcli configure vm
command to configure high availability services for your
virtual machines.
A system that is highly available is designed to provide uninterrupted computing
services during essential time periods, during most hours of the day, and during most
days of the week throughout the year. Reliability, recoverability, timely error detection,
and continuous operations are primary characteristics of a highly available solution.
Two essential parts of high availability are automatic restart and failover.
Unless you are using local repositories, you can set high availability options for your
virtual machines. High availability options identify the node where the virtual machine
should be started by default and whether the virtual machine should be failed over to
the other node. Failover can occur if the node where the virtual machine is already
running fails or if the preferred node is not available when the virtual machines attempt
to start.
Configuring Automatic Restart for High Availability
A virtual machine automatically restarts after a hardware or software failure or
whenever your database host computer restarts. Use the
oakcli configure vm
command to start a virtual machine on a preferred node by using the
-prefnode
option.
Configuring Failover for High Availability
Configuring failover provides high availability by enabling a virtual machine to restart
on the other node after an unplanned failure, without requiring manual intervention.
Use the command
oakcli configure vm
with the
-failover
option to configure fail
over from one node to another.
How to Manage CPU Pools on Oracle Database Appliance
Virtualized Platform
These topics describe how to use OAKCLI to create and manage CPU pools on
Oracle Database Appliance Virtualized Platform.
•
About Managing CPU Pools for Resource Allocation
Use CPU pools to cage and manage resource allocations to workloads for virtual
machines on Oracle Database Appliance Virtualized Platforms.
•
About Over-Subscribed CPU Pools
Configure virtual machines so that they do not subscribe to more CPU resources
than the resources available in CPU pools.
•
Creating a New CPU Pool on Oracle Database Appliance Virtualized Platform
Nodes
Use the command
oakcli create cpupool
to create a CPU pool.
Chapter 12
How to Manage High Availability on Oracle Database Appliance Virtualized Platform
12-43
Summary of Contents for Database Appliance X6-2-HA
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