Upgrading multi-cluster environments
There is no special process to upgrade clusters in a multi-cluster environment. When you choose an IBM Storage Scale version, the release should comply with release level limitations.
Note: Upgrades are performed on a cluster-boundary basis.
Once all the clusters in the environment are upgraded, the release and the file system version should be changed. To view the differences between file system versions, see Listing file system attributes.
To change the IBM Storage Scale release, issue the following
command on each cluster:
mmchconfig release=LATEST
Note: Nodes that run an
older version of IBM Storage Scale on the remote cluster will
no longer be able to mount the file system. Command fails if any nodes running an older version are
mounted at time command is issued.
To change the file system version, issue the following command for each file system on the
storage cluster:
mmchfs <fs> -V full
If your requirements call for it,
issue the following command: mmchfs <fs> -V compat
This enables only
backward-compatible format changes.