Powershell – PowerCLI – add shared hard disk to vm, using existing scsi controller

Use the SCSI ID to identify the virtual disk. You seem to be under the impression that the SCSI ID is dynamically assigned when the VM powers on. This is not the case. In the properties of the VM, you can set the ID for your virtual disk to whatever you want, and it will not change unless you want it to.

To find all vmhosts with alarm status = "red", I expanded on this.

#
# Find all hosts with triggered alarms in "Red" state
#
$esx_all = Get-VMHost | Get-View
$Report=@()
foreach ($esx in $esx_all){
    foreach($triggered in $esx.TriggeredAlarmState){
        If ($triggered.OverallStatus -like "red" ){
            $lineitem={} | Select Name, AlarmInfo
            $alarmDef = Get-View -Id $triggered.Alarm
            $lineitem.Name = $esx.Name
            $lineitem.AlarmInfo = $alarmDef.Info.Name
            $Report+=$lineitem
        } 
    }
}
$Report |Sort Name | export-csv "c:\temp\ESX-Host-Red-Alarms.csv" -notypeinformation -useculture
Invoke-item "c:\temp\ESX-Host-Red-Alarms.csv"