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Upgrading charms

Prior to performing either a Ceph upgrade or an operating system upgrade all charms should be upgraded to their latest stable revision, which is the default behaviour of the upgrade-charm command (this can potentially be a multi-revision upgrade). See Upgrade target revisions for more information.

Note: The Ceph charms have been tested for single-step charm upgrades only (N+1).

The Juju command to use for upgrading charms is upgrade-charm. For extra guidance see Upgrading applications in the Juju documentation.

In terms of the upgrade order, begin with ceph-mon, after which the remaining charms can be upgraded in any order:

juju upgrade-charm ceph-mon

Verify the success of an upgrade before moving on to the next charm. Do this by inspecting the juju status command output.

Last updated 11 months ago. Help improve this document in the forum.