This is a new feature of 8.5 that alerts the user to any less than ideal configurations in their environment.
Firing up the 8.5 Central Management Console (CMC), looking on the left pane, you will see a Configuration Summary option.
Clicking this will present you with a Best Practices summary of your HP/Lefthand environment.
It assesses five areas of node and cluster health:
1. Are are all nodes correctly protected at a hardware RAID level?
2. Do you have enough nodes for redundancy? (i.e. more than one)
3. Are the volumes correctly set up with some level of redundancy? (i.e. not Network RAID-0)
4. Are the correct number of managers running in the cluster so a quorum can be maintained in the event of node failure?
5. Are all NICs on all nodes running at correctly at 1-Gbps full duplex? (essential) – with Adaptive Load Balancing and Flow Control highly recommended
If all is good, then the status shows as healthy with green checkmarks
However, if there is something less than ideal – things change.
An example of this is when creating a volume. It is highly recommended to used Network RAID to protect it. The default for a new volume is Network RAID-10 (2-way).
If you then decide to create the volume without any replication protection (Network RAID-0), the best practice analyzer will alert you to the problem (in this case with yellow exclamation marks).
Clicking the blue help (?) button will advise you what the best practice is and what to do to correct the situation.