Deploying Ceph Storage Cluster using Cephadm

The Ceph Storage Cluster is the foundation for all Ceph deployments. Based upon RADOS, Ceph Storage Clusters consist of several types of daemons:

1. a Ceph OSD Daemon (OSD) stores data as objects on a storage node
2. a Ceph Monitor (MON) maintains a master copy of the cluster map.
3. a Ceph Manager manager daemon

A Ceph Storage Cluster might contain thousands of storage nodes. A minimal system has at least one Ceph Monitor and two Ceph OSD Daemons for data replication.

The Ceph File System, Ceph Object Storage and Ceph Block Devices read data from and write data to the Ceph Storage Cluster.

Ceph Hardware Recommendation – https://docs.ceph.com/en/quincy/start/hardware-recommendations/

My Deployment Environment: –

OS – CentOS9 Stream

The number of disks – 1 For OS,3 For Ceph OSDS.

Deployment Steps: –

Create DNS Records for Ceph VMs. Ceph0 – 172.90.0.30, ceph1-172.90.0.31, ceph2-172.90.0.32.

Configure Passwordless SSH.

copy or clone the script from the following Link – https://github.com/Dineshk1205/Ceph/blob/main/cephpreq.sh

Run the cephpreq.sh script on all Ceph nodes. (In the script update NTP Address according to your infra)

Copy OR clone the following ceph. bash script file – https://github.com/Dineshk1205/Ceph/blob/main/Ceph.sh

Run Script on first node ceph0 node only. (In Script Update Hostnames IPs and password according to your infra)

Once script execution is completed. Check Ceh dashboard