Move Primary to Instance operation
This operation moves the primary IBM Storage Scale Server to the current IBM Storage Scale configuration instance. If there is only one node in the current IBM Storage Scale configuration instance, that node is moved to the tiebreaker node. If there is no tiebreaker node, the secondary IBM Storage Scale Server is either reassigned to the Tiebreaker configuration, or remains unassigned.
Before you begin
Important: If IBM Storage Scale pattern type V1.2.16.0 or later is installed on your
system, the
Move Primary to Instance
operation is not available for use on the
page of the Cloud Pak System Software
console.If you use IBM Storage Scale V5.x, complete these steps on the node on which this operation must
be done:
- Shut down GPFS daemons on all gpfs nodes by running this
command.
su - gpfsprod -c 'sudo /usr/lpp/mmfs/bin/mmshutdown -a’
- Disable CCR by running this
command.
su - gpfsprod -c 'sudo /usr/lpp/mmfs/bin/mmchcluster --ccr-disable'
- Start the Cluster by running this
command.
su - gpfsprod -c 'sudo /usr/lpp/mmfs/bin/mmstartup -a'
About this task
Procedure
- Expand the Failover Active-Active section of the GPFS_Manager operations.
- Expand the Move Primary to Instance node.
- Click Submit.
- Click Confirm when asked to validate your request.
Results
The primary and secondary servers are moved or reassigned.
What to do next
If you use IBM Storage Scale 5.X, after you complete this operation successfully, enable CCR by
running the following command on the node on which the operation is already
done:
su - gpfsprod -c 'sudo /usr/lpp/mmfs/bin/mmchcluster --ccr-enable'