You are a network architect of an application running on Oracle Cloud Infrastructure (OCI). Your security team has informed you about a security patch that needs to be applied immediately to one of the backend web servers. What should you do to ensure that the OCI load balancer does not forward traffic to this backend server during maintenance?
A load balancer improves resource utilization, facilitates scaling, and helps ensure high
availability. You can configure multiple load balancing policies and application-specific health
checks to ensure that the load balancer directs traffic only to healthy instances. The load
balancer can reduce your maintenance window by draining traffic from an unhealthy
application server before you remove it from service for maintenance.
The Load Balancing service considers a server marked drain available for existing persisted
sessions. New requests that are not part of an existing persisted session are not sent to that
server.
Edit Drain State: Opens a dialog box in which you can change the drain state.
If you set the server's drain status to true, the load balancer stops forwarding
new TCP connections and new non-sticky HTTP requests to this backend server.
This setting allows an administrator to take the server out of rotation for
maintenance purposes.
e. Edit Offline State: Opens a dialog box in which you can change the offline
status.
If you set the server's offline status to true, the load balance forwards no ingress
traffic to this backend server.
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