This is not part of 4.6 content. Can we move this out?
After the mons scale up to 3 mons again, we should still see mon-a in the quorum. It's unexpected that mon-a is not showing up in quorum. Since all the daemons are crashing, this likely indicates that a new mon quorum has been created and the original mon quorum was lost. Something must not have worked when restoring the quorum. After mon-b and mon-c are taken down, and the mon quorum is reset to only include mon-a, is the ceph status seen to be healthy with the single mon? Before continuing with the guide to restore up to 3 mons again, we need to see that the cluster is healthy with a single mon