I want to backup my cluster by taking disk snapshot of data of each node instead of standard ES backup/restore method. Will the cluster work normally if I restore data from the disk snapshot? My cluster is in Google Compute Engine. I'm trying to increase the node size to more powerful hardware so would like to backup my data first. I couldn't find appropriate tutorial for Google Cloud Storage backup/restore plugin. ElasticSearch version of my cluster is 1.7.
Another quick question,
I'm doing rolling restart to upgrade node size. Is there anything I need to consider for the process? Internal ip of the instance will not change.