Explanation: The Ceph dashboard provides a graphical interface for cluster monitoring and management. Set up erasure -coded pools for efficient storage in Ceph. ee the solution below. Solution: 1. Create an erasure code profile: ceph osd erasure -code -profile set <profile_name> k=2 m=1 2. Create a pool using the profile: ceph osd pool create <pool_name> 128 128 erasure <profile_name> Explanation: Erasure -coded pools provide redundancy while using less space than replicated pools, making them efficient for archival data. Back up the Ceph configuration and CRUSH map. ee the solution below. Solution: 1. Backup the configuration file: ceph config dump > /backup/ceph -config.backup 2. Backup the CRUSH map: ceph osd getcrushmap -o /backup/crushmap.backup Explanation: Backing up critical files ensures the cluster can be restored quickly in case of failure.
Add a new OSD node and assign it to a custom failure domain. ee the solution below. Solution: 1. Initialize the new disk: ceph -volume lvm create --data /dev/sdc 2. Add the OSD to a failure domain: ceph osd crush set <osd_id> root=default rack=new_rack Explanation: Assigning OSDs to custom failure domains helps maintain data redundancy across physical locations. Automate the addition of multiple MON nodes using an Ansible playbook. ee the solution below. Solution: 1. Define the MON nodes in inventory.yml: [mons] mon1 ansible_host=192.168.0.1 mon2 ansible_host=192.168.0.2 mon3 ansible_host=192.168.0.3 2. Run the playbook to add MON nodes: ansible -playbook -i inventory.yml add_mons.yml Explanation: Automating MON node addition ensures consistent deployment and reduces manual configuration errors. Configure a replicated storage pool in Red Hat Ceph Storage. ee the solution below.
Solution: 1. Create a replicated pool: ceph osd pool create my -replicated -pool 128 2. Set the replication size to 3: ceph osd pool set my -replicated -pool size 3 3. Verify the pool configuration: ceph osd pool get my -replicated -pool size Explanation: Replicated storage pools ensure data redundancy by maintaining multiple copies of data. The replication size determines the number of copies. Store an object in a replicated storage pool. ee the solution below. Solution: 1. Install the rados CLI tool: yum install ceph -common -y 2. Write an object to the pool: echo "Hello Ceph" | rados put my -object -p my -replicated -pool 3. Verify the object: rados -p my -replicated -pool ls Explanation: The rados command allows direct interaction with Ceph pools to store and retrieve objects. Store objects within a namespace inside a storage pool.
ee the solution below. Solution: 1. Create a namespace in the pool: rados put my -object --namespace=my -namespace -p my -replicated -pool 2. List objects in the namespace: rados -p my -replicated -pool --namespace=my -namespace ls Explanation: Namespaces logically group objects within a pool, providing isolation and better management. Create an erasure -coded pool with specific parameters. ee the solution below. Solution: 1. Create an erasure code profile: ceph osd erasure -code -profile set my -profile k=2 m=1 2. Create the erasure -coded pool: ceph osd pool create my -ec-pool 128 128 erasure my -profile Explanation: Erasure coding offers efficient storage by splitting data into fragments and adding parity for redundancy. Upload a file to an erasure -coded pool. ee the solution below. Solution: 1. Enable RADOS Gateway (RGW): ceph mgr module enable rgw
2. Upload the file: rados -p my -ec-pool put my -file /path/to/file 3. Verify the file: rados -p my -ec-pool ls Explanation: Erasure -coded pools require parity data for storage efficiency. Files are split into fragments and stored across OSDs. Change default Ceph Storage configuration settings to improve performance. ee the solution below. Solution: 1. Edit the Ceph configuration file: vim /etc/ceph/ceph.conf Add: [global] osd_max_backfills = 4 2. Apply the changes: ceph daemon osd.* config refresh Explanation: Updating the Ceph configuration file optimizes cluster performance for specific workloads. Enable and manage Red Hat Ceph Storage authentication. ee the solution below. Solution: 1. Enable authentication:
➢ 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.
