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Multipath to Round Robin on all FC disks in cluster

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This will configure multipath to round robin and IOPS to 1 on all disks in a cluster based upon the vendor type.
This script is configured for 3par LUNs.  Change $vendor for other storage types/vendors.
This commit is contained in:
Alan Comstock
2017-10-27 09:16:39 -05:00
committed by GitHub
parent 78c91088f4
commit 76820423a4
1 changed files with 9 additions and 15 deletions
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Scripts/SetClusterMultiPathToRoundRobin.ps1
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@@ -2,28 +2,22 @@
Script name: SetClusterMultiPathToRoundRobin.ps1
Created on: 09/14/2017
Author: Alan Comstock, @Mr_Uptime
Description: Set the MultiPath policy for FC devices to RoundRobin for all hosts in a cluster.
Description: Set the MultiPath policy for FC devices to RoundRobin and IOPS to 1 for all hosts in a cluster based upon the vendor tag.
Dependencies: None known
PowerCLI Version: VMware PowerCLI 6.5 Release 1 build 4624819
PowerShell Version: 5.1.14393.1532
OS Version: Windows 10
#>
#Check for any Fibre Channel devices that are not set to Round Robin in a cluster.
#Get-Cluster -Name CLUSTERNAME | Get-VMhost | Get-VMHostHba -Type "FibreChannel" | Get-ScsiLun -LunType disk | Where { $_.MultipathPolicy -notlike "RoundRobin" } | Select CanonicalName,MultipathPolicy
#Set the Multipathing Policy to Round Robin for any Fibre Channel devices that are not Round Robin in a cluster
$cluster = Get-Cluster CLUSTERNAME
$hostlist = Get-VMHost -Location $cluster | Sort Name
$TotalHostCount = $hostlist.count
$hostincrement = 0
while ($hostincrement -lt $TotalHostCount){ #Host Loop
$currenthost = $hostlist[$hostincrement].Name
Write-Host "Working on" $currenthost
$scsilun = Get-VMhost $currenthost | Get-VMHostHba -Type "FibreChannel" | Get-ScsiLun -LunType disk | Where { $_.MultipathPolicy -notlike "RoundRobin" }
$pathpolicy="RoundRobin"
$iops="1"
$vendor="3PARdata"
$AllESXHosts = Get-VMHost -Location CLUSTERNAME | Sort Name
Foreach ($esxhost in $AllESXHosts) {
Write-Host "Working on" $esxhost
$scsilun = Get-VMhost $esxhost | Get-VMHostHba -Type "FibreChannel" | Get-ScsiLun -LunType disk | Where-Object {$_.Vendor -like $vendor -and ($_.MultipathPolicy -notlike $pathpolicy -or $_.CommandsToSwitchPath -ne $iops)}
if ($scsilun -ne $null){
Set-ScsiLun -ScsiLun $scsilun -MultipathPolicy RoundRobin
Set-ScsiLun -ScsiLun $scsilun -MultipathPolicy $pathpolicy -CommandsToSwitchPath $iops
}
$hostincrement++ #bump the host increment
}
#The End