Percona XtraDB CLuster Disaster Recovery Issue

Hi,

After installing 3 nodes with peronca successfully, I just tried to make some tests for replication and disaster recovery. Basically, the bootstrap node once get down for some reason(power outage!!), it s abvious that the rest of the cluster already intiated still working fine. But what about if all the cluster is down and we want to restart it [of course without data loss] from the second or third node [basically they are not configured as bootstrap node] ??