How to suppress “The number of vSphere HA heartbeat datastores for this host is 1 which is less than required 2”

Whilst preparing my ApplicationHA lab for the SE interlock and Symantec Vision in the next couple of weeks, I was busily just making sure that no errors or alarms were triggered and everything looked clean, one thing I did notice and has been there from the start of building the lab, was a message “The number of vSphere HA heartbeat datastores for this host is 1 which is less than required 2”.

The heart beating over a datastore is something that was added with vSphere 5.0, the new FDM HA agent utilizes the storage subsystem as an alternate communication path and typically needs 2 paths to communicate, it’s actually similar to Veritas Cluster Server heart beating which uses 2 extra NICs for heart beating as well as using disk type heartbeats via Coordination Point Server (CPS).

Ok so how to remove or suppressing of the alarm.

There are a couple of ways to remove the message from appearing, the recommended way is to add redundancy via adding another shared datastore to the vSphere cluster or alternatively you can use the “das.ignoreInsufficientHbDatastore = true” attribute in the advanced vSphere HA settings.

1. From within the vSphere Client right-click on the cluster and edit settings.

2. Select the vSphere HA feature and click “Advanced Options”

3. In the options column enter the tag “das.ignoreInsufficientHbDatastore”

4. In the value column enter “true” for the value.

5. Click on “OK” and then “OK” again to make the changes in the advanced options

6. right-click on the ESX server which is displaying the warning symbol and select “Reconfigure for vSphere HA”

That’s it, once the reconfigure task completes the warning should disappear and you are left with a warning icon clean ESX server.

How to reset a lost HP ILO100 admin password with IPMItool

Slightly off the virtualization track but it is lab related…

A new addition to the home VMware lab arrived today, another ML110 G6, these systems are great for building a VMware environment and also have the added benefit of an ILO100 remote management board. I picked this one up from ebay for an amazing £120 and with some additional ram and possibly a CPU upgrade this will still be under £300 and for a quad core 16gb lab machine thats a bargain, finally I can build out SRM permanently intead of using my laptop VMs…

Anyway these ILO cards are great for remote management and I can place my servers out the way from the kids and remotely power on or connect via virtual KVM. The main issue I had with this one was that the admin password was unknown but with the use of the Intel tool  IPMItool its fairly straightforward to reset once a bootable USB stick is created.

follow the steps below to gain access back with your ILO

  • Create a DOS bootable disk (floppy or USB key)
  • Download the IPMItool from this link: 
  • Copy the IPMItool.exe to the bootable disk
  • Boot the server using the bootable disk
  • Run “ipmitool.exe 20 18 47 03 02 61 64 6d 69 6e 00 00 00 00 00 00 00 00 00 00 00”
  • Now your password should reset back to “admin”