Vester

1.2.0

Tests/DSCluster/IO-Latency.Vester.ps1

                                # Test file for the Vester module - https://github.com/WahlNetwork/Vester

# Called via Invoke-Pester VesterTemplate.Tests.ps1

# Test title, e.g. 'DNS Servers'

$Title = 'SDRS - IOLatencyThresholdMillisecond'

# Test description: How New-VesterConfig explains this value to the user

$Description = 'Specify the IOLatencyThresholdMillisecond setting of a datastore cluster'

# The config entry stating the desired values

$Desired = $cfg.dscluster.iolatencythresholdmillisecond

# The test value's data type, to help with conversion: bool/string/int

$Type = 'int'

# The command(s) to pull the actual value for comparison

# $Object will scope to the folder this test is in (Cluster, Host, etc.)

[ScriptBlock]$Actual = {

    $Object.IOLatencyThresholdMillisecond

}

# The command(s) to match the environment to the config

# Use $Object to help filter, and $Desired to set the correct value

[ScriptBlock]$Fix = {

    $Save = Get-ChildItem Variable: | Where-Object {$_.Value -Match "dscluster"}

    $ReservableIopsThreshold = $Save.Value.DSCluster.ioresiopsthreshold

    $ReservablePercentThreshold = $Save.Value.DSCluster.iorespercentthreshold

    $ReservableThresholdMode = $Save.Value.DSCluster.ioresthresholdmode

    Set-DatastoreCluster -DatastoreCluster $Object -IOLatencyThresholdMillisecond $Desired -Confirm:$FALSE -ErrorAction Stop

    # Sets ReservablePercentThreshold and ReservableThresholdMode as the above setting will reset it

    $StorMgr = Get-View StorageResourceManager

    $Spec = New-Object VMware.Vim.StorageDrsConfigSpec

    $Spec.PodConfigSpec = New-Object VMware.Vim.StorageDrsPodConfigSpec

    $Spec.PodConfigSpec.IoLoadBalanceConfig = New-Object VMware.Vim.StorageDrsIoLoadBalanceConfig

    $Spec.PodConfigSpec.IoLoadBalanceConfig.ReservablePercentThreshold = $ReservablePercentThreshold

    $Spec.PodConfigSpec.IoLoadBalanceConfig.ReservableIopsThreshold = $ReservableIopsThreshold

    $Spec.PodConfigSpec.IoLoadBalanceConfig.ReservableThresholdMode = $ReservableThresholdMode

    $StorMgr.ConfigureStorageDrsForPod($Object.ExtensionData.MoRef,$Spec,$TRUE)

}