Get the host name from rescan command

[ganapa2000]

Hi,

Please help me to get the host name from below rescan command.

Command : Get-Cluster MyCluster | Get-VMHost | Get-VMHostStorage -RescanAllHba

Output :

SoftwareIScsiEnabled

--------------------

False

False

False

False

[LucD]

Does this return the host?

Get-Cluster MyCluster | Get-VMHost | Get-VMHostStorage -RescanAllHba |

Select @{N='VMHost';E={$_.VMHost.Name}},SoftwareScsiEnabled

[ganapa2000]

Hi LucD,

How can I rescan only fnic or fibre  and get only its output ?

[LucD]

Not with a cmdlet afaik, but you can use the RescanHba method, which allows the scan of a specific HBA.

[ganapa2000]

Hi LucD,

I am getting the below error

Get-Cluster Compute | Get-VMHost | Get-VMHostStorage -rescanHba vmhba1

Get-VMHostStorage : A parameter cannot be found that matches parameter name 'rescanHba'.

At line:1 char:58

+ Get-Cluster Compute | Get-VMHost | Get-VMHostStorage -rescanHba vmhba1

+                                                          ~~~~~~~~~~

    + CategoryInfo          : InvalidArgument: (:) [Get-VMHostStorage], ParameterBindingException

    + FullyQualifiedErrorId : NamedParameterNotFound,VMware.VimAutomation.ViCore.Cmdlets.Commands.Host.GetVMHostStorage

[LucD]

That is not a cmdlet nor a cmdlet parameter, but an API method.

Something like this

Get-VMHost | Get-VMHostHba -Type FibreChannel | %{

   $storSys = Get-View -Id $_.VMHost.ExtensionData.ConfigManager.StorageSystem

   $storSys.RescanHba($_.Device)

}

[ganapa2000]

Hi LucD,

Thanks a lot, it worked but I am unable to get the hostname and HBA device name in the output.

The script runs successfully but no hostname and HBA device name in the output.

I tried as below

Get-VMHost | Get-VMHostHba -Type FibreChannel | %{

   $storSys = Get-View -Id $_.VMHost.ExtensionData.ConfigManager.StorageSystem

   $storSys.RescanHba($_.Device)

} | Select @{N='VMHost';E={$_.VMHost.Name}}

[LucD · Accepted solution]

The RescanHBA method doesn't return anything, so you can't include the outcome of the scan just like that.

To display the host and HBA you can do

foreach($hba in Get-VMHost | Get-VMHostHba -Type FibreChannel){

   $storSys = Get-View -Id $hba.VMHost.ExtensionData.ConfigManager.StorageSystem

   $storSys.RescanHba($hba.Device)

   $hba | Select @{N='VMHost';E={$_.VMHost.Name}},Name

}

[ganapa2000]

That worked .

Thank you very much for your help.

One last question, where can I specify the Cluster name in the script ?

[LucD]

You can do something like this

$clusterName = 'MyCluster'

foreach($hba in Get-Cluster -Name $clusterName | Get-VMHost | Get-VMHostHba -Type FibreChannel){

    $storSys = Get-View -Id $hba.VMHost.ExtensionData.ConfigManager.StorageSystem

    $storSys.RescanHba($hba.Device)

    $hba | Select @{N='VMHost';E={$_.VMHost.Name}},Name

}

[ganapa2000]

You are simply Superb