Even in the example above we can be certain of several things:
- At last report all nodes of the cluster are operational and joined into the cluster. No nodes or drives report as down or split. (At some point in the past, drive ID 8 on node 3 was replaced, but a replacement disk has been added successfully.)
- Node 1 rebooted: for the first eight out of ten lines, each group change is adding back a drive on node 1 into the group, and nodes two and three are inaccessible. This occurs on node reboot prior to any attempt to join an active group and is correct and healthy behavior.
- Node 3 joins in with node 1 before node 2 does. This might be coincidental, given that the two nodes join within a second of each other. On the other hand, perhaps node 2 also rebooted while node 3 remained up. A review of group changes from these other nodes could confirm either of those behaviors.
In this case, a check of node 2 and 3’s logs will confirm whether they also rebooted at the same time indicating a cluster-wide event.