vSphere – ‘The Number of HA Heartbeat Datastores for this host is 0’

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KB ID 00011202 Dtd 06/06/16

Problem

Seen after enabling HA on your vSphere Cluster

HA Error ESX Heartbeat Datastore

HA Error: The number of heartbeat datastores for host is 0, which is less than required: 2

or

HA Error: The number of heartbeat datastores for host is 1, which is less than required: 2

I had this on my test network today, and to be honest thats not really surprising because I don’t have any shared storage.

 

Note: You can see the same error if your ‘HA Datastore Heartbeating’ settings are set to, ‘Select only from my preferred datastore’, and you haven’t selected any datastores!

We have had networking heartbeats since ESX3, but with vCenter 5 we also have datastore heartbeats as well, that’s what it’s complaining about.

Solution

You can add some shared storage, though in my case that wasn’t an option so I needed to configure my cluster to ‘suppress the errors’

Locate HA Datastore Heartbeat Settings

In the  VI Client > Right click your Cluster > Edit Settings > vSphere HA > DataStore Heartbeating > (As you can see I don’t have any but if you did you can select the datastore from here).

HA Datastore Heartbeat Settings

In the Web Client > Select  your Cluster > Manage > vSphere HA > Expand DataStore Heartbeating.

Web Client HA Datastore Heartbeat Settings

 

Suppress DataStore Heartbeat Warnings (Web Client)

Web Client > Select  your Cluster > Manage > vSphere HA > Edit

HA Datastore Edit Settings

Scroll down to Advanced Settings > Add > Add in the following;

Option: das.ignoreInsufficientHbDatastore.

Value: true

HA Datastore Edit Settings Advanced Web

Then right click each of the ‘hosts’ and select ‘Reconfigure for HA’.

005 - ESX Reconfigure for HA Web Client

Suppress DataStore Heartbeat Warnings (VI Client)

VI Client > Right click your Cluster > Edit Settings > vSphere HA > Advanced Options.

HA Datastore Edit Settings Advanced VI Client

Option: das.ignoreInsufficientHbDatastore.

Value: true

HA Datastore Edit Advanced Settings

Then right click each of the ‘hosts’ and select ‘Reconfigure for HA’.

008 - ESX Reconfigure for HA VI Client

 

Related Articles, References, Credits, or External Links

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Author: PeteLong

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