how to get vm-hosts in cluster

[stony007_de]

hi dev's,

i have 2 clusters with ESX Hosts.

Now I need to get the number of host in each cluster.

My Quick&Dirty workaround is very slow!

First i get all Clusters in Environment, then the reading the Host Information's and last the Count of the Hosts... In result ~120Sec!! !http://communities.vmware.com/images/emoticons/sad.gif!

is there an other option to get this information?

--stony007_de

[nnedev]

Hi,

You can use this piece of code to get the number of hosts in a cluster:

(Get-VMHost -Location myCluster).Count

Is this faster than your solution?

Regards,

Nedko Nedev

PowerCLI Development Team

[avlieshout]

Nedko,

That code doesn't work if the cluster is empty or contains just one host.

You need to use array subexpression for this

@(Get-VMHost -Location myCluster).Count

Cheers,

Arnim

[nnedev]

Good point! :smileyblush:

Regards,

Nedko Nedev

PowerCLI Development Team

[RvdNieuwendijk]

The next script gives the number of hosts per cluster in a different way. It works fast but it needs PowerCLI v4.1.

Get-Cluster | ForEach-Object {
  $Report = "" | Select-Object -Property Cluster,HostsCount
  $Report.Cluster = $_.Name
  $Report.HostsCount = $_.ExtensionData.Host.Count
  $Report
} 

You can also do this in a oneliner:

Get-Cluster | Select-Object Name,@{N="HostsCount";E={$_.ExtensionData.Host.Count}}

Regards, Robert