Public/Get-DMHostPerformance.ps1
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function Get-DMHostPerformance { <# .SYNOPSIS Retrieves realtime performance samples for OceanStor hosts. .DESCRIPTION Thin wrapper around Get-DMPerformance for object type Host. Accepts one or more OceanStorHost objects via pipeline (e.g. from Get-DMhost), batches all piped IDs into a single performance_data call per sample -- required because the endpoint cannot be invoked concurrently. .PARAMETER WebSession Optional parameter to define the session to be use on the REST call. If not defined, the module's cached $script:CurrentOceanstorSession session will be used .PARAMETER InputObject One or more OceanStorHost objects, pipeline-able. .PARAMETER Metric One or more friendly metric names (see Get-DMPerformanceIndicatorMap). Defaults to Get-DMPerformance's own default set when omitted. .PARAMETER SampleCount Number of samples to take. Defaults to 1. .PARAMETER IntervalSeconds Delay between samples when SampleCount is greater than 1. Defaults to 5. .INPUTS OceanStorHost .OUTPUTS System.Collections.ArrayList .EXAMPLE PS> Get-DMhost | Get-DMHostPerformance .NOTES Filename: Get-DMHostPerformance.ps1 #> [CmdletBinding()] [OutputType([System.Collections.ArrayList])] param( [Parameter(ValueFromPipelineByPropertyName = $true, Mandatory = $false)] [pscustomobject]$WebSession, [Parameter(Mandatory = $true, Position = 0, ValueFromPipeline = $true)] [object[]]$InputObject, [Parameter(Mandatory = $false)] [ArgumentCompleter({ param($commandName, $parameterName, $wordToComplete, $commandAst, $fakeBoundParameters) (Get-DMPerformanceIndicatorMap).Keys | Where-Object { $_ -like "$wordToComplete*" } })] [ValidateScript({ $validNames = (Get-DMPerformanceIndicatorMap).Keys foreach ($metricName in $_) { if ($metricName -notin $validNames) { throw "Unknown performance metric '$metricName'. Valid metrics: $($validNames -join ', ')" } } return $true })] [string[]]$Metric, [Parameter(Mandatory = $false)] [int]$SampleCount = 1, [Parameter(Mandatory = $false)] [int]$IntervalSeconds = 5 ) begin { $session = if ($WebSession) { $WebSession } else { $script:CurrentOceanstorSession } $ids = [System.Collections.Generic.List[string]]::new() } process { foreach ($obj in $InputObject) { if ($obj -isnot [OceanStorHost]) { throw "Get-DMHostPerformance: InputObject must be an OceanStorHost object." } $ids.Add($obj.Id) } } end { if ($ids.Count -eq 0) { return } $params = @{ WebSession = $session; ObjectType = 'Host'; ObjectId = @($ids) } if ($PSBoundParameters.ContainsKey('Metric')) { $params.Metric = $Metric } for ($s = 0; $s -lt $SampleCount; $s++) { Get-DMPerformance @params if ($s -lt ($SampleCount - 1)) { Start-Sleep -Seconds $IntervalSeconds } } } } |