Setting VsanOperationReservationState and HostRebuildReservationState and customizing alert levels

[scottD65]

So I am working on a script to set VsanOperationReservationState and HostRebuildReservationState to enforced and also set the customized alert levels.  I have the code for setting the enforcement:

get-cluster clusternamehere | Set-VsanClusterConfiguration -VsanOperationReservationState:Enforced -HostRebuildReservationState:Enforced

But I haven't found how to set the customized alert levels for Warning and Error.  We don't want to take the default values.  

Any help would be great. 😀

[LucD]

Are you talking about the VSAN Alarm Definitions?

[scottD65]

I don't think so.  I've screenshot what I am looking for.  If you 'Edit' and then turn on both Operations and Host Build reserve, you can mark a 'customize alerts' and adjust the alert levels.  I'm looking for how to set those levels.  You know how folks are, 'Can't take the defaults'. Could it be there is a corresponding Alarm Definition that can be adjusted?

[scottD65]

ok after digging a bit more I think it's gonna be somewhere in the vsan health checks under capacity or storage space.  I'm still digging around. 

[LucD]

Ok, got it.

Afaik, there is no direct cmdlet for that, but you can use the API.
Update the cluster name and the yellow and red values to your requirements.

$clusterName = 'cluster'
$cluster = Get-CLuster -Name $clusterName

$vsanConfig = Get-VsanView -Id 'VsanVcClusterConfigSystem-vsan-cluster-config-system'
$spec = New-Object -TypeName 'VMware.Vsan.Views.VimVsanReconfigSpec'
$health = New-Object -TypeName 'VMware.Vsan.Views.VsanHealthConfigSpec'
$threshold = New-Object -TypeName 'VMware.Vsan.Views.VsanHealthThreshold'
$threshold.Enabled = $true
$threshold.Target = 'diskspace_vsan_datastore'
$threshold.YellowValue = 70
$threshold.RedValue = 90
$health.HealthCheckThresholdSpec += $threshold
$spec.VsanHealthConfig = $health
$vsanConfig.VsanClusterReconfig($cluster.ExtensionData.MoRef,$spec)

[scottD65]

Very nice.  I am ok using an api call to make the adjustment.  We do the same already with some of our stuff (hot add shared disks to vms).  Thank you again for finding this. 

[scottD65]

Do you happen to know if there is a way to 'get' the current settings to compare them to what I would want and only set them if required?

[LucD]

With $vsanConfig you can do

$config = $vsanConfig.VsanClusterGetConfig($cluster.ExtensionData.MoRef)
$config.VsanHealthConfig.HealthCheckThresholdSpec

[scottD65]

Great - thank you again.