vSphere Claim Rules

Set-ClaimRules.ps1

$esxCred = Get-Credential
Connect-VIServer $esx -Credential $esxCred
 
$esxcli = Get-ESXcli 
 
# Add the claim rule and test for its existence.  This also fails if the claim rule
# is already present.
try {
    $esxcli.storage.nmp.satp.rule.add($null,"tpgs_on", 
      "HP 3PAR Custom ALUA Rule", $null, $null, $null, "VV", 
      $null, "VMW_PSP_RR","iops=100", "VMW_SATP_ALUA", $null,
      $null, "3PARdata")
    } 
catch {} 
 
if (($esxcli.storage.nmp.satp.rule.list() | 
  where-Object { $_.description -like "*3PAR*" }).count -ne 1) {
    write-output "Custom claim rule addition failed!"
    exit
    }
 
# Get a list of 3PAR devices that aren't configured for RR 
# and unclaim them
$3parDevices = $esxcli.storage.nmp.device.list() | 
   Where-Object { $_.DeviceDisplayName -like "3PARdata*" -and 
   $_.PathSelectionPolicy -notlike "*_RR"}
$3parDevices | % {
    $esxcli.storage.core.claiming.unclaim($null, $null, $null, 
    $_.Device, $null, $null, $null, $null, $null, $null, 
    "device", "3PARdata")
}
 
# now reload all claim rules
$esxcli.storage.claimrule.load
$esxcli.storage.claimrule.run
 
# rescan all HBAs
Get-VMHost | Get-VMHostStorage -RescanAllHba