How to troubleshoot vSAN issues?

Great Comprehensive Post on How to Check for VSAN Issues in your Environment !!

VirtuallyVTrue

Hope you are doing all great, for today’s post I wanted to put together some of the commands/troubleshooting I’ve had used with VMware vSAN,

Identify a partitioned node from a VSAN Cluster(Hosts)

What a single partitioned node looks like:

~ # esxcli vsan cluster get
Cluster Information
 Enabled: true
 Current Local Time: 2020-10-25T10:35:19Z
 Local Node UUID: 507e7bd5-ad2f-6424-66cb-1cc1de253de4
 Local Node State: MASTER
 Local Node Health State: HEALTHY
 Sub-Cluster Master UUID: 507e7bd5-ad2f-6424-66cb-1cc1de253de4
 Sub-Cluster Backup UUID:
 Sub-Cluster UUID: 52e4fbe6-7fe4-9e44-f9eb-c2fc1da77631
 Sub-Cluster Membership Entry Revision: 7
 Sub-Cluster Member UUIDs: 507e7bd5-ad2f-6424-66cb-1cc1de253de4
 Sub-Cluster Membership UUID: ba45d050-2e84-c490-845f-1cc1de253de4
~ #

What a full 4-node cluster looks like (no partition)

~ # esxcli vsan cluster get Cluster Information Enabled: true Current Local Time: 2020-10-25T10:35:19Z Local Node UUID: 54188e3a-84fd-9a38-23ba-001b21168828 Local Node State: MASTER Local Node Health State: HEALTHY Sub-Cluster Master UUID: 54188e3a-84fd-9a38-23ba-001b21168828 Sub-Cluster Backup UUID: 545ca9af-ff4b-fc84-dcee-001f29595f9f Sub-Cluster UUID: 529ccbe4-81d2-89bc-7a70-a9c69bd23a19 Sub-Cluster Membership Entry Revision: 3 Sub-Cluster Member UUIDs: 54188e3a-84fd-9a38-23ba-001b21168828, 545ca9af-ff4bfc84-dcee-001f29595f9f…

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