Cephadm-Managed Cluster to CES
Switching from another version of Ceph to Clyso Enterprise Storage is as simple as an upgrade! The CES container is also managed by cephadm, so the procedure is the same as upgrading to a new version of Ceph.
Start the upgrade by pulling the CES image from the registry. You can find the latest image name in our Getting Started guide.
For example, to upgrade to CES 25.03:
ceph orch upgrade start --image harbor.clyso.com/ces/ceph/ceph:ces-base-v25.03.1-ga.1-rc.9
This will start the migration process and pull the latest CES image from the registry. To follow the progress of the migration, you can run the following command:
watch ceph -s
progress:
Upgrade to 18.2.4-21-g3462c366fdd (72s)
[========....................] (remaining: 3m)
Global Recovery Event (30s)
[=============...............] (remaining: 30s)
Below are useful commands to monitor the migration process:
ceph -W cephadm --watch-debug
watch ceph orch upgrade status
To verify the migration, you can run the following command:
ceph versions
Head over to the Ceph Copilot section to learn more about the new features and functionalities of the latest version of CES.
Migrate from CES to Ceph Upstream
When migrating back to upstream Ceph, ensure compatibility between your CES container version and the target upstream version.
For example, if your current CES Ceph daemon version is:
ceph version 18.2.4-21-g3462c366fdd reef (stable)
It is recommended to migrate to Ceph upstream version reef (18.2.5) or higher for optimal compatibility.
Important compatibility information for CES 25.03:
- The release includes improvements for upgrading from Ceph 17.2.8 (quincy) to CES 25.03 (reef)
- However, when migrating from CES 25.03 to Ceph 18.2.4, you may encounter compatibility issues
- To ensure a smooth migration, we strongly recommend using Ceph 18.2.5 or later as your target version
upgrade bug from 25.03 to 18.2.4 is highlighted in this upstream tracker: https://tracker.ceph.com/issues/67660