What's Clustering and how to create it

What is clustering?

Clustering is a way to logically group WebSphere MQ queue managers so that you have: – reduced system administration due to fewer channel, remote queue, and transmission queue definitions. – increased availability and workload balancing due to the ability to define instances of the same queue on multiple queue managers in the cluster and distribute messages to those queues.

How do you create a cluster?
go to servers -> clusters-> new ->give cluster_name->define first member->define other members->finish

How do you add a new cluster member?
go to servers -> clusters->cluster_name ->cluster members ->new ->give name/node/others->apply->ok->save

one of the cluster member (jvm) is having issues. To troubleshoot the issue, you decided to take it out of the cluster. How do you do that?
Make its runtime weight to 0

In a complex environment, there are 10 machines. Machine A is having 8GB RAM and machine B having 2GB of RAM. The administrator decided to send twice as many request as machineB to machineA. How can he achive it?
give machineA twice the weight as machineB

After making some changes on a cluster, it is required to recycle/restart all the cluster JVMs. The lead admin told you to make sure that there should not be any downtime during this recycle. Which option do you use to achieve it?
Ripplestart

A large application which has 5web modules has been deployed on to a cluster. After some months, the developer asked you to update on of the 5web modules. How do you do it?
Rollout

What is a backup cluster?

can you change the cluster name, once it was created
No