Copy Cluster between two similar cluster
We have planned to upgrade os from cent0S6 to cent0S7 and we will use copy cluster between two similar cluster procedure (Vertica version 9.1).
I have few questions-
A)We will keep the source cluster and its etl and reporting running, will their performance be impacted?
B)What happens to transactions that are done during copy cluster,will that data will be present in target cluser?
C)We are already doing object level backup....i think full backup is not necessary before copy cluster...as anyways the source cluster will always be up?