esxi cluster problem


We had recently have some esxi server installed in cluster.
They work perfectly but I've noticed an error sign next to the cluster.

I've asked our IT supplier and they say that it isn't an error but just the icon for a cluster. Is this true? Because I can find infrastructure screenshot without the exclamation sign.

The icon is before Voka-cluster
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Its not an error but warning, you need to check the logs

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no this is asking for your attention

warning is something you need to attend. common sense. but what/where to attend? go to logs
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BELRpRAuthor Commented:
I've selected the Task and events when I clicked on the cluster. I see some old errors but they have been all fixed. Or do you mean some sort of other logs?
nope, I'm not quite sure when those signs are removed, but then everything is fine
BELRpRAuthor Commented:
I had to reconfigure HA for a host. I saw the error when selecting the cluster and then the tab summary.
It was: host xxx currently has no management network redundancy

I just did a reconfigure for vmware HA and the error was gone and the exclamation sign was gone too
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