Hi ALL,<br><br>I have to do rolling upgrade on two node ocfs2 cluster, patch the server one by one, with out application outage.<br> <br>I tested in pre-prod 2 node cluster, once the DB is stopped by DBA team, I ran "umount -at ocfs2" and then rebooted the node1, but this also rebooted the node2.<br>
<br>could any one please suggest me the best practice for upgrading/rebooting the cluster nodes.<br><br>I have to upgrade the 3 node cluster in prod ENV with out outage.<br><br>Thanks<br>Veeera.<br><br><br>