Initial installation

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As a storage administrator, you can use the cephadm utility to deploy new IBM Storage Ceph clusters.

Before you begin

  • At least one running virtual machine (VM) or bare-metal server with an active internet connection.
  • Red Hat Enterprise Linux 9.2 with ansible-core bundled into AppStream.

  • A valid IBM subscription with the appropriate entitlements.

  • Root-level access to all nodes.
  • An active IBM Network or service account to access the IBM Registry.
  • Remove troubling configurations in iptables so that refresh of iptables services does not cause issues to the cluster. For an example, see Verifying firewall rules are configured for default Ceph ports.
For the latest supported Red Hat Enterprise Linux versions, see Compatibility matrix.

About this task

The cephadm utility manages the entire life cycle of a Ceph cluster. Installation and management tasks comprise two types of operations:
  • Day One operations involve installing and bootstrapping a bare-minimum, containerized Ceph storage cluster, running on a single node. Day One also includes deploying the Monitor and Manager daemons and adding Ceph OSDs.
  • Day Two operations use the Ceph orchestration interface, cephadm orch, or the IBM Storage Ceph Dashboard to expand the storage cluster by adding other Ceph services to the storage cluster.