1. Update the Ansible playbook with network settings: public_network: 192.168.1.0/24 cluster_network: 192.168.2.0/24 2. Run the playbook: ansible -playbook -i inventory.yml site.yml 3. Verify the network configuration: ceph config dump | grep network Explanation: Using separate networks improves performance and security by isolating cluster traffic from client communications. Deploy a Ceph cluster and configure object storage with an S3 -compatible interface. ee the solution below. Solution: 1. Enable the RGW service: rgw_enable: true 2. Run the playbook to deploy the cluster: ansible -playbook -i inventory.yml site.yml 3. Verify the RGW service: ceph mgr services | grep rgw Explanation: The RGW service provides S3 and Swift -compatible APIs, enabling object storage capabilities within a Ceph cluster. Install and configure a Ceph metadata server (MDS) for CephFS.
ee the solution below. Solution: 1. Add an MDS section to the inventory file: [mdss] node3 ansible_host=192.168.0.3 2. Run the playbook to deploy MDS: ansible -playbook -i inventory.yml site.yml 3. Create a CephFS filesystem: ceph fs create myfs mydata mymeta Explanation: MDS handles metadata for CephFS, enabling the use of a distributed filesystem in the Ceph cluster. Upgrade an existing Ceph cluster using Ansible playbooks to the latest stable version. ee the solution below. Solution: 1. Update the playbook with the target version: ceph_release: pacific 2. Run the upgrade playbook: ansible -playbook -i inventory.yml rolling_update.yml 3. Verify the cluster version: ceph version Explanation: Rolling upgrades ensure minimal downtime while keeping the cluster up-to-date with the latest features and improvements.
Deploy a Ceph cluster and configure erasure -coded pools for storage efficiency. ee the solution below. Solution: 1. Create an erasure -coded profile: ceph osd erasure -code -profile set myprofile k=2 m=1 2. Create an erasure -coded pool: ceph osd pool create mypool 128 128 erasure myprofile 3. Verify the pool configuration: ceph osd pool get mypool erasure_code_profile Explanation: Erasure -coded pools provide storage efficiency while maintaining data redundancy by splitting data into fragments. Automate the backup of a Ceph cluster configuration using Ansible. ee the solution below. Solution: 1. Create a playbook for backup: - hosts: all tasks: - name: Backup Ceph configuration command: ceph config get mon -o /backup/ceph.conf 2. Run the backup playbook: ansible -playbook backup.yml 3. Verify the backup file: ls /backup/ceph.conf Explanation:
Regular backups ensure the Ceph configuration can be restored in case of unexpected issues or failures. Deploy a Ceph dashboard for monitoring the cluster using Ansible. ee the solution below. Solution: 1. Enable the dashboard module: ceph mgr module enable dashboard 2. Set a dashboard password: ceph dashboard set -login -credentials admin password 3. Access the dashboard: https://<mgr -node -ip>:8443 Explanation: The Ceph dashboard provides a graphical interface for monitoring and managing the cluster, improving user experience. Configure Ceph storage to integrate with Prometheus for advanced monitoring. ee the solution below. Solution: 1. Enable the Prometheus module: ceph mgr module enable prometheus 2. Verify the metrics endpoint: curl http://<mgr -node -ip>:9283/metrics 3. Integrate with Prometheus: Add the metrics endpoint to the Prometheus configuration file.
Explanation: Integration with Prometheus allows advanced metrics collection and visualization for Ceph clusters, aiding in monitoring and troubleshooting. Modify the pool replication size in an existing Red Hat Ceph Storage cluster from 3 to 2. ee the solution below. Solution: 1. Verify the current replication size: ceph osd pool get <pool_name> size 2. Change the replication size: ceph osd pool set <pool_name> size 2 3. Verify the updated replication size: ceph osd pool get <pool_name> size Explanation: Replication size determines the number of data copies. Reducing it lowers redundancy but saves storage space. Add a new monitor (MON) node to an existing Red Hat Ceph Storage cluster. ee the solution below. Solution: 1. Prepare the node for Ceph: yum install ceph -y 2. Add the MON node to the cluster: ceph mon add &t;new_mon_hostname> <ip_address> 3. Verify the MON node addition:
➢ TOTAL QUESTIONS: 479 Install a containerized Red Hat Ceph Storage server on a physical system using Ansible playbooks. Verify the installation. ee the solution below. Solution: 1. Install required packages: yum install ceph -ansible -y 2. Edit the Ansible inventory file (inventory.yml): [mons] node1 ansible_host=192.168.0.10 [osds] node2 ansible_host=192.168.0.11 3. Deploy the Ceph cluster: ansible -playbook -i inventory.yml site.yml 4. Verify the cluster status: ceph -s Explanation: Ansible playbooks automate the setup of a containerized Ceph Storage cluster. Verifying with ceph -s ensures the cluster is operational. Deploy a virtualized Red Hat Ceph Storage server using Podman and Ceph container images. Verify the containerized services are running. ee the solution below.
