Storage Path setting migrate

[Hiront]

Hi expert

I will upgrade ESXi 4.1 to ESXi5.1

But We upgrade process use clean install because replace usb boot to network boot.

How to migrate disk path setting?

I using Prefered path, and different for each host.

Could you help me or any idia？

Best regards

Hironori

[Hiront]

Sorry! additional.

How to dump pathsetting before upgrade ?

And

how to set path againg after upgrade ?

[LucD]

Use this for the export

Get-VMHost |
Get-ScsiLun -LunType disk |
Select @{N="VMHost";E={$_.VMHost.Name}},CanonicalName,MultipathPolicy |
Export-Csv C:\Lun-Path-Policy.csv -NoTypeInformation -UseCulture

And you configure the path policy with this

Import-Csv C:\Lun-Path-Policy.csv -UseCulture | %{
  Get-ScsiLun -CanonicalName $_.CanonicalName -VmHost $_.VMHost -LunType disk |
  Set-ScsiLun -MultipathPolicy $_.MultiPathPolicy -Confirm:$false
}

Try this out in a test environment before you use it in your live environment !

[Hiront]

Thank you for your reply.

I try it soon.

Additinal.

Could you tell me how to migrate preferd path setting?

Sorry

[LucD · Accepted solution]

Use the following versions of the scripts.

For the export

Get-VMHost |
Get-ScsiLun -LunType disk |
Select @{N="VMHost";E={$_.VMHost.Name}},CanonicalName,MultipathPolicy,
  @{N="Preferred";E={
    if($_.MultipathPolicy -eq "Fixed"){
      Get-ScsiLunPath -ScsiLun $_ | where {$_.Preferred} |
      Select -ExpandProperty Name
    }
  }} |
Export-Csv C:\Lun-Path-Policy.csv -NoTypeInformation -UseCulture

And for the import

Import-Csv C:\Lun-Path-Policy.csv -UseCulture | %{
  $lun = Get-ScsiLun -CanonicalName $_.CanonicalName -VMHost $_.VMHost -LunType disk
  if($_.MultiPathPolicy -eq "Fixed"){}
    $prefPath = $_.Preferred
    $path = Get-ScsiLunPath -ScsiLun $lun | where {$_.Name -eq $prefPath}
    Set-ScsiLun -ScsiLun $lun -MultipathPolicy $_.MultiPathPolicy -Confirm:$false -PreferredPath $path
  else{
    Set-ScsiLun -ScsiLun $lun -MultipathPolicy $_.MultiPathPolicy -Confirm:$false
  }
}

[Hiront]

Feedback!

Script error occur "Set-ScsiLun If the Multipathpolicy parameter is set to 'Fixed', you must specify the PreferredPath parameter".

I can`t found Preferred parameter in get-scsilun commandlet output.

thank you.

Hiro

[LucD]

I updated the import script above, please try again.

[Hiront]

Feedback!

Second script Error occurs "set-scsilun : paramter 'ScsiLun' can not bind."

???

[Hiront]

OK I retry it

[Hiront]

Hi LucD

your script work fine!

Thank you very much

hiro