Apart from Red Hat Enterprise Linux (RHEL), I work on Ansible, Azure Cloud, and AWS cloud. I also work on Kubernetes, Windows systems, and Linux. We deal completely with customer data, which is hosted in the cloud, and I have experience in disaster recovery.
In Linux, we use a few of the DBVMs, with all DBVMs hosted in the Linux boxes. During this time, if any drive gets full or shrinks, we connect to that particular DB box and run queries to clear up space.
The use cases for Red Hat Enterprise Linux (RHEL) involve having a particular jump box to connect to specific regions. For East, we have a separate jump box, and then for West, Central, and Canada. If any drives shrink, we log into the particular region's jump box and provide the username, which for me is my Azure username. After providing the password and logging in, we write the command sudo su -Oracle. After that, we use commands to find the Oracle services running on that particular DB box, such as ps -ef, and we use a pipe with a grep command for the service known as PMON. In a similar way, we use SMON. We check these two services. Running this command shows the Oracle services running on that particular DB box. After that, to add spaces, we take help from the Ansible template. In that Ansible template, we provide the DB name and then data in the field, such as DATA. We can check whether the hosts are connected or not. As per the Ansible template, using this, we can clear the space and add up the space. Sometimes we check the logs in the particular Linux DB boxes.