VSAN-Troubleshooting-Reference-Manual

Diagnostics and Troubleshooting Reference Manual – Virtual SAN
vsan.cluster_info
This command, seen already, gives an overview of the cluster state. Once again,
numerical shortcuts are used – the 0 here represents the cluster name. If this
command is returning multiple clusters with a master in each and a subset of hosts
in the member UUID list (in this case 2 & 1 for a 3-node cluster), then this is also
indicative of a cluster partition.
/localhost/ie-datacenter-01/computers> vsan.cluster_info 0
Host: cs-ie-h01.ie.local
VSAN enabled: yes
Cluster info:
Cluster role: master
Cluster UUID: 52dc5a95-d04b-cbb9-9d90-f486c2f14d1d
Node UUID: 54184636-badc-c416-1699-001f29595f9f
Member UUIDs: ["54196e13-7f5f-cba8-5bac-001517a69c72", "54184636-badc-c416-1699-
001f29595f9f"] (2)
Storage info:
Auto claim: no
...
Host: cs-ie-h02.ie.local
VSAN enabled: yes
Cluster info:
Cluster role: master
Cluster UUID: 52dc5a95-d04b-cbb9-9d90-f486c2f14d1d
Node UUID: 54184636-badc-c416-1699-001f29595f9f
Member UUIDs: ["54196e13-aabb-cba8-6734-001517bdef76”] (1)
Storage info:
Auto claim: no
...
One of the most common network misconfiguration issues with Virtual SAN that
leads to partitioning is the multicast misconfiguration. Either multicast has not been
enabled correctly, or the IGMP Querier hasn’t been setup properly to include all of
the hosts in the Virtual SAN cluster.
Let’s look at that scenario in more detail.
V M W A R E S T O R A G E B U D O C U M E N T A T I O N / 1 1 5