A new esxcli command to assist with troubleshooting has also been added:

esxcli vsan debug
Usage: esxcli vsan debug {cmd} [cmd options]

Available Namespaces:

 disk Debug commands for vSAN physical disks
 object Debug commands for vSAN objects
 resync Debug commands for vSAN resyncing objects
 controller Debug commands for vSAN disk controllers
 limit Debug commands for vSAN limits
 vmdk Debug commands for vSAN VMDKs

As well as the esxcli vsan debug command, we also added the following commands in vSAN 6.6 information to get troubleshooting information:

 • esxcli vsan health cluster
 • esxcli vsan resync bandwidth
 • esxcli vsan resync throttle
 • esxcli vsan cluster unicastagent list

Example 1:
++++++++++
Use "vsan debug vmdk" command to check all of VMDKs status:
 
 [root@TestVSAN:~] esxcli vsan debug disk list
 UUID: 52bc7654-xxxx-xxxx-xxxx-54cf6cda4368
    Name: naa.xxx
    SSD: True
    Overall Health: green
    Congestion Health:
          State: green
          Congestion Value: 0
          Congestion Area: none
    In Cmmds: true
    In Vsi: true
    Metadata Health: green
    Operational Health: green
    Space Health:
          State: green
          Capacity: 0 bytes
          Used: 0 bytes
          Reserved: 0 bytes
 
Example 2:
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 [root@TestVSAN:~] esxcli vsan cluster unicastagent list
NodeUuid IsWitness Supports Unicast IP Address Port Iface Name
------------------------------------ --------- ---------------- ------------- ----- ----------
52e8ac54-xxxx-xxxx-xxxx-54cf6cda4368 0 true 10.10.0.111 12321
52e8ac78-xxxx-xxxx-xxxx-98cf6xas5345 0 true 10.10.0.112 12321
52e8ac21-xxxx-xxxx-xxxx-56ab6cba4368 0 true 10.10.0.113 12321