function Recommend-Sizing
This Function collects Basic vSphere Informations for a Hardware Sizing Recomamndation. Focus is in Compute Ressources.
This commit is contained in:
mycloudrevolution
199
Modules/Recommend-Sizing.psm1
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199
Modules/Recommend-Sizing.psm1
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function Recommend-Sizing {
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<#
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.NOTES
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===========================================================================
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Created by: Markus Kraus
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Twitter: @VMarkus_K
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Private Blog: mycloudrevolution.com
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===========================================================================
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Changelog:
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2016.11 ver 1.0 Base Release
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===========================================================================
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External Code Sources:
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http://www.lucd.info/2011/04/22/get-the-maximum-iops/
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https://communities.vmware.com/thread/485386
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===========================================================================
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Tested Against Environment:
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vSphere Version: 5.5 U2
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PowerCLI Version: PowerCLI 6.3 R1, PowerCLI 6.5 R1
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PowerShell Version: 4.0, 5.0
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OS Version: Windows 8.1, Server 2012 R2
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===========================================================================
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Keywords vSphere, ESXi, VM, Storage, Sizing
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===========================================================================
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.DESCRIPTION
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This Function collects Basic vSphere Informations for a Hardware Sizing Recomamndation. Focus is in Compute Ressources.
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.Example
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Recommend-Sizing -ClusterNames Cluster01, Cluster02 -StatsRange 480 -Verbose
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.Example
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Recommend-Sizing -ClusterNames Cluster01, Cluster02
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.Example
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Recommend-Sizing -ClusterNames Cluster01
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.PARAMETER ClusterNames
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List of your vSphere Cluser Names to process.
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.PARAMETER StatsRange
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Time Range in Minutes for the Stats Collection.
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Default is 24h.
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#Requires PS -Version 4.0
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#Requires -Modules VMware.VimAutomation.Core, @{ModuleName="VMware.VimAutomation.Core";ModuleVersion="6.3.0.0"}
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#>
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[CmdletBinding()]
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param(
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[Parameter(Mandatory=$True, ValueFromPipeline=$False, Position=0)]
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[Array] $ClusterNames,
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[Parameter(Mandatory=$False, ValueFromPipeline=$False, Position=1)]
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[int] $StatsRange = 1440
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)
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Begin {
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[int]$TimeRange = "-" + $StatsRange
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$Validate = $True
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#region: Check Clusters
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Write-Verbose "$(Get-Date -Format G) Starting Cluster Validation..."
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foreach ($ClusterName in $ClusterNames) {
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$TestCluster = Get-Cluster -Name $ClusterName -ErrorAction SilentlyContinue -Verbose:$False
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if(!($TestCluster)){
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Write-Warning "No Custer found wth Name $ClusterName!"
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$Validate = $False
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}
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elseif ($TestCluster.count -gt 1) {
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Write-Warning "Multiple Custers found wth Name $ClusterName!`nUse a List of explicit Cluster Names: Recommend-Sizing -ClusterNames Cluster01, Cluster02 "
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$Validate = $False
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}
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}
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Write-Verbose "$(Get-Date -Format G) Cluster Validation completed"
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#endregion
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}
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Process {
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$MyView = @()
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if ($Validate -eq $True) {
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foreach ($ClusterName in $ClusterNames) {
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#region: Get Cluster Objects
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Write-Verbose "$(Get-Date -Format G) Collect $ClusterName Cluster Objects..."
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$Cluster = Get-Cluster -Name $ClusterName -Verbose:$False
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$ClusterVMs = $Cluster | Get-VM -Verbose:$False
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$ClusterVMsPoweredOn = $ClusterVMs | where {$_.PowerState -eq "PoweredOn"}
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$ClusterDatastores = $Cluster | Get-Datastore -Verbose:$False
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$ClusterHosts = $Cluster | Get-VMHost -Verbose:$False
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$HostsAverageMemoryUsageGB = [math]::round( ($ClusterHosts | Measure-Object -Average -Property MemoryUsageGB).Average,1 )
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$HostsAverageMemoryUsage = $([math]::round( (($ClusterHosts | Measure-Object -Average -Property MemoryUsageGB).Average / ($ClusterHosts | Measure-Object -Average -Property MemoryTotalGB).Average) * 100,1 ))
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$HostsAverageCpuUsageMhz = [math]::round( ($ClusterHosts | Measure-Object -Average -Property CpuUsageMhz).Average,1 )
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$HostsAverageCpuUsage = $([math]::round( (($ClusterHosts | Measure-Object -Average -Property CpuUsageMhz).Average / ($ClusterHosts | Measure-Object -Average -Property CpuTotalMhz).Average) * 100,1 ))
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Write-Verbose "$(Get-Date -Format G) Collect $($Cluster.name) Cluster Objects completed"
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#endregion
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#region: CPU Calculation
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Write-Verbose "$(Get-Date -Format G) Collect $($Cluster.name) CPU Details..."
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$VMvCPUs = ($ClusterVMs | Measure-Object -Sum -Property NumCpu).sum
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$LogicalThreads = $Cluster.ExtensionData.Summary.NumCpuThreads
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$CpuCores = $Cluster.ExtensionData.Summary.NumCpuCores
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$vCPUpCPUratio = [math]::round( $VMvCPUs / $LogicalThreads,1 )
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Write-Verbose "$(Get-Date -Format G) Collect $($Cluster.name) CPU Details completed."
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#endregion
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#region: Memory Calculation
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Write-Verbose "$(Get-Date -Format G) Collect $($Cluster.name) Memory Details..."
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$AllocatedVMMemoryGB = [math]::round( ($ClusterVMs | Measure-Object -Sum -Property MemoryGB).sum )
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$PhysicalMemory = [math]::round( $Cluster.ExtensionData.Summary.TotalMemory / 1073741824,1 )
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$MemoryUsage = [math]::round( ($AllocatedVMMemoryGB / $PhysicalMemory) * 100 ,1 )
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Write-Verbose "$(Get-Date -Format G) Collect $($Cluster.name) Memory Details completed"
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#endregion
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#region: Creating Disk Metrics
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Write-Verbose "$(Get-Date -Format G) Create $($Cluster.name) IOPS Metrics..."
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$DiskMetrics = "virtualDisk.numberReadAveraged.average","virtualDisk.numberWriteAveraged.average"
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$start = (Get-Date).AddMinutes($TimeRange)
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$DiskStats = Get-Stat -Stat $DiskMetrics -Entity $ClusterVMsPoweredOn -Start $start -Verbose:$False
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Write-Verbose "$(Get-Date -Format G) Create $($Cluster.name) IOPS Metrics completed"
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#endregion
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#region: Creating IOPS Reports
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Write-Verbose "$(Get-Date -Format G) Process $($Cluster.name) IOPS Report..."
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$reportDiskPerf = @()
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$reportDiskPerf = $DiskStats | Group-Object -Property {$_.Entity.Name},Instance | %{
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New-Object PSObject -Property @{
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IOPSMax = ($_.Group | `
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Group-Object -Property Timestamp | `
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%{$_.Group[0].Value + $_.Group[1].Value} | `
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Measure-Object -Maximum).Maximum
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}
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}
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Write-Verbose "$(Get-Date -Format G) Process $($Cluster.name) IOPS Report completed"
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#endregion
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#region: Create VM Disk Space Report
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Write-Verbose "$(Get-Date -Format G) Process $($Cluster.name) VM Disk Space Report..."
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$reportDiskSpace = @()
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foreach ($ClusterVM in $ClusterVMs){
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$VMDKs = $ClusterVM | get-HardDisk -Verbose:$False
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foreach ($VMDK in $VMDKs) {
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if ($VMDK -ne $null){
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[int]$CapacityGB = $VMDK.CapacityKB/1024/1024
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$Report = [PSCustomObject] @{
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CapacityGB = $CapacityGB
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}
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$reportDiskSpace += $Report
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}
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}
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}
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Write-Verbose "$(Get-Date -Format G) Process $($Cluster.name) VM Disk Space Report completed"
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#endregion
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#region: Create Datastore Space Report
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Write-Verbose "$(Get-Date -Format G) Process $($Cluster.name) Datastore Space Report..."
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$DatastoreReport = @($ClusterDatastores | Select-Object @{N="CapacityGB";E={[math]::Round($_.CapacityGB,2)}}, @{N="FreeSpaceGB";E={[math]::Round($_.FreeSpaceGB,2)}}, @{N="UsedSpaceGB";E={[math]::Round($_.CapacityGB - $_.FreeSpaceGB,2)}})
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Write-Verbose "$(Get-Date -Format G) Process $($Cluster.name) Datastore Space Report completed"
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#endregion
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#region: Create Global Report
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Write-Verbose "$(Get-Date -Format G) Process Global Report..."
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$SizingReport = [PSCustomObject] @{
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Cluster = $Cluster.name
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HAEnabled = $Cluster.HAEnabled
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DrsEnabled = $Cluster.DrsEnabled
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Hosts = $Cluster.ExtensionData.Summary.NumHosts
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HostsAverageMemoryUsageGB = $HostsAverageMemoryUsageGB
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HostsAverageMemoryUsage = "$HostsAverageMemoryUsage %"
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HostsAverageCpuUsageMhz = $HostsAverageCpuUsageMhz
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HostsAverageCpuUsage = "$HostsAverageCpuUsage %"
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PhysicalCPUCores = $CpuCores
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LogicalCPUThreads = $LogicalThreads
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VMs = $ClusterVMs.count
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ActiveVMs = $ClusterVMsPoweredOn.count
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VMvCPUs = $VMvCPUs
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vCPUpCPUratio = "$vCPUpCPUratio : 1"
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PhysicalMemoryGB = $PhysicalMemory
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AllocatedVMMemoryGB = $AllocatedVMMemoryGB
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ClusterMemoryUsage = "$MemoryUsage %"
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SumMaxVMIOPS = [math]::round( ($reportDiskPerf | Measure-Object -Sum -Property IOPSMax).sum, 1 )
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AverageMaxVMIOPs = [math]::round( ($reportDiskPerf | Measure-Object -Average -Property IOPSMax).Average,1 )
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SumVMDiskSpaceGB = [math]::round( ($reportDiskSpace | Measure-Object -Sum -Property CapacityGB).sum, 1 )
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SumDatastoreSpaceGB = [math]::round( ($DatastoreReport | Measure-Object -Sum -Property CapacityGB).sum, 1 )
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SumDatastoreUsedSpaceGB = [math]::round( ($DatastoreReport | Measure-Object -Sum -Property UsedSpaceGB).sum, 1 )
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}
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$MyView += $SizingReport
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Write-Verbose "$(Get-Date -Format G) Process Global Report completed"
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#endregion
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}
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}
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Else {
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Write-Error "Validation Failed! Processing Skipped"
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}
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}
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End {
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$MyView
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}
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}
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