need to create an Alarm in multiple VM using pcli

[amr_almoshneb]

Dears

I need to create an Alarm in multiple VM. using Pcli

Many thanks

[LucD]

Can you be a bit more specific?

What kind of Alarm? Event, performance metric...?
On all VMs on a specific cluster, in a specific folder...?

[amr_almoshneb]

Many Thanks for your Reply,

i have multiple VM in cluster and need to set Alarm for each VM Disk storage space.

for example:

-vm named "server-1" need to send Alarm and notification mail if the attached Disk exceed 100GB.

- another VM "server-2" need to send Alarm and notification mail if the attached Disk exceed 50GB.

[LucD]

I don't think you can have a trigger that fires when a specific vDisk goes over a threshold.

But you can set a trigger to fire when the VM takes up more than a specific number of GB.

Would that work for your setup?

[amr_almoshneb]

Dear LucD

yes it will be very good, "vm total size on disk GB" Trigger

waiting you

Many thanks

[LucD · Accepted solution]

Try something like this.
Update the VM's name, and the yellow and red thresholds on which you want the alarm to fire.

$vmName = 'MyVM'

$alarmName = 'Check disk size'

$alarmDescription = 'Check total storage size the VM is using.'

$yellowGB = 50

$redGB = 75

$stat = 'disk.used.latest'

$statSplit = $stat.Split('.')

$si = Get-View ServiceInstance

$perfMgr = Get-View -Id $si.Content.PerfManager

$metric = $perfMgr.PerfCounter | where{$_.GroupInfo.Key -eq $statSplit[0] -and $_.NameInfo.Key -eq $statSplit[1] -and $_.RollupType -eq $statSplit[2]}

$alarmMgr = Get-View AlarmManager

$entity = Get-View -ViewType VirtualMachine -Filter @{'Name'=$vmName}

$spec = New-Object VMware.Vim.AlarmSpec

$spec.Name = $alarmName

$spec.Enabled = $true

$spec.Description = $alarmDescription

$metricId = New-Object VMware.Vim.PerfMetricId

$metricId.CounterId = $metric.Key

$metricId.Instance = ''

$expression = New-Object VMware.Vim.MetricAlarmExpression

$expression.Metric += $metricId

$expression.Type = 'VirtualMachine'

$expression.Operator = [VMware.Vim.MetricAlarmOperator]::isAbove

$expression.Yellow = $yellowGB * 1MB

$expression.Red = $redGB * 1MB

$spec.Expression = $expression

$alarmMgr.CreateAlarm($entity.MoRef,$spec)

[amr_almoshneb]

Dear Lucd

Great, it is created successfully

but need to add "send notification mail in Actions"  from normal to warning, to Allow send notification mail

Many thanks again

[LucD]

Run the following lines after the alarm is created

$def = Get-AlarmDefinition -Name $alarmName

$action = New-AlarmAction -Email -Subject 'Disk size exceeded' -To 'me@domain.com' -AlarmDefinition $def

$trigger = New-AlarmActionTrigger -StartStatus Green -EndStatus Yellow -AlarmAction $action

Get-AlarmActionTrigger -AlarmAction $action | where{$_.StartStatus -eq 'Yellow'} | Remove-AlarmActionTrigger -Confirm:$false

[amr_almoshneb]

Many thanks for your support

last question

I can't add Multiple VM name at first line " , the error appeared

for example:-

$vmName = 'server-1','server-2','server-3'

and trying to use Cat command, it didn't work

[LucD]

You have two options:

1. Create an alarm for each individual VM. That can be done by running through the list of names in a ForEach loop, and create the alarm for name
2. Create the alarm on a higher level in the vSphere inventory (for example a Folder or the Cluster), then all the VirtualMachines under that higher level will get the Alarm defined

[amr_almoshneb]

Yes Option 1 will be very good,

Could you help to add it to script  

Thanks again Lucd

[LucD]

Try like this

$vmNames = 'VM1','VM2','VM3'

$alarmName = 'Check disk size'

$alarmDescription = 'Check total storage size the VM is using.'

$yellowGB = 50

$redGB = 75

$stat = 'disk.used.latest'

$statSplit = $stat.Split('.')

$si = Get-View ServiceInstance

$perfMgr = Get-View -Id $si.Content.PerfManager

$metric = $perfMgr.PerfCounter | where{$_.GroupInfo.Key -eq $statSplit[0] -and $_.NameInfo.Key -eq $statSplit[1] -and $_.RollupType -eq $statSplit[2]}

$alarmMgr = Get-View AlarmManager

$entity = Get-View -ViewType VirtualMachine -Filter @{'Name'=$vmName}

$spec = New-Object VMware.Vim.AlarmSpec

$spec.Name = $alarmName

$spec.Enabled = $true

$spec.Description = $alarmDescription

$metricId = New-Object VMware.Vim.PerfMetricId

$metricId.CounterId = $metric.Key

$metricId.Instance = ''

$expression = New-Object VMware.Vim.MetricAlarmExpression

$expression.Metric += $metricId

$expression.Type = 'VirtualMachine'

$expression.Operator = [VMware.Vim.MetricAlarmOperator]::isAbove

$expression.Yellow = $yellowGB * 1MB

$expression.Red = $redGB * 1MB

$spec.Expression = $expression

foreach($vmName in $vmNames){

    $entity = Get-VM -Name $vmName

    $spec.Name = "$alarmName for $vmName"

    $alarmMgr.CreateAlarm($entity.MoRef,$spec)

    $def = Get-AlarmDefinition -Name $spec.Name

    $action = New-AlarmAction -Email -Subject 'Disk size exceeded' -To 'me@domain.com' -AlarmDefinition $def

    $trigger = New-AlarmActionTrigger -StartStatus Green -EndStatus Yellow -AlarmAction $action

    Get-AlarmActionTrigger -AlarmAction $action | where{$_.StartStatus -eq 'Yellow'} | Remove-AlarmActionTrigger -Confirm:$false

}