You must remove the space management client for IBM® Storage Scale before installing a new version. You must deactivate the space management client, disable failover, and remove the space management client from all nodes.
About this task
If you want to upgrade the space management client, you must uninstall and install the backup-archive client and the API to get the product to the same version and level. A mixed installation is not supported. Activity on the space-managed file systems should be avoided during software installation. Access to migrated files during the upgrade is not possible, because the system would be suspended while trying to read a file stub.
To upgrade the space management client for IBM Storage Scale, complete the following steps:
Procedure
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Ensure that all HSM nodes (owner and backup) are in a consistent state and that all space-managed file systems are mounted on all HSM nodes.
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Globally deactivate HSM on every node by issuing the command: dsmmigfs globaldeactivate.
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Disable failover on every node by issuing the command: dsmmigfs disablefailover.
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To identify which node owns which cluster file system, issue the dsmmigfs q -d command on one of the nodes.
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Remove the space management client from all nodes.
You must not upgrade with a command like rpm -U. You must uninstall the old version and then install the new version.
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Install the space management client on all nodes.
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Globally reactivate HSM on every node by issuing the command: dsmmigfs globalreactivate.
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Enable failover on every node by issuing the command: dsmmigfs enablefailover.
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Take over each file system on its owner node.
With distributed HSM, the HSM daemons also run on these nodes, which are designated for the failover feature.