Restarting Elasticsearch node 2.0

I have 3 nodes running elasticsearch 2.0 with minimum master node =2.

Are the following steps seem ok?

I run the following command on all three nodes
PUT /_cluster/settings
{
"persistent": {
"cluster.routing.allocation.enable": "none"
}
}

2.shut down/kill the elasticsearch process on all three servers.

While starting nodes, start each node and enable the allocation.

Thanks