Accepted Solutions
If you are sure that the same LUNid doesn't appear for different LUNs on different targets in the same HBA than the earlier script can be adapted.
$esxName = <ESX-hostname>
$vmName = <VM-name>
$hbaName = <hba-name> # Can be any of the HBAs that connect to the LUN
$lunId = <Lunid>
$esx = Get-VMHost $esxName | Get-View
foreach($hba in $esx.Config.StorageDevice.HostBusAdapter){
if($hba.Device -eq $hbaName){
$hbaKey = $hba.Key
continue
}
}
foreach($adapter in $esx.Config.StorageDevice.ScsiTopology.Adapter){
if($adapter.Adapter -eq $hbaKey){
foreach($tgt in $adapter.Target){
foreach($lun in $tgt.Lun){
if($lun.Lun -eq $lunId){
$lunKey = $lun.Key
continue
}
}
continue
}
continue
}
}
foreach($lun in $esx.Config.StorageDevice.ScsiLun){
if($lun.Uuid -eq $lunKey){
$path = $lun.DevicePath
continue
}
}
# Create raw disk
Get-VM $vmName | New-HardDisk -DiskType RawVirtual -DeviceName $path
Fyi different LUNs with the same LUNid, albeit under different targets, is possible.
I'm not sure I understand the question completely.
The following screenshot shows a LUN in my test environment.
It is reachable over 2 HBAs and each HBA has 2 paths.
As you can see vmhba2:2:0 is the preferred path.
The logic to determine the preferred path is present in the script.
Do you need help to extract the lines that do this ?
Yes, I'm refering to the device as the HBA, which in this case is vmhba1, and the LUN is the integer displayed as the LUN ID, 11 in this case. The only variable is the SCSI target:
The SAN volumes are replicated at SAN level to the DR SAN from the primary. In the event of a disaster, the replication is broken and the replica volume mapped to the DR ESX server. Actually, the replica is checked pointed at predetermined points in time and it is from one of these checkspoints the volume is created.
I'll take a look the error trapping, but it is a pity the simple what-if parameter doesn't work.
Many thanks
If you are sure that the same LUNid doesn't appear for different LUNs on different targets in the same HBA than the earlier script can be adapted.
$esxName = <ESX-hostname>
$vmName = <VM-name>
$hbaName = <hba-name> # Can be any of the HBAs that connect to the LUN
$lunId = <Lunid>
$esx = Get-VMHost $esxName | Get-View
foreach($hba in $esx.Config.StorageDevice.HostBusAdapter){
if($hba.Device -eq $hbaName){
$hbaKey = $hba.Key
continue
}
}
foreach($adapter in $esx.Config.StorageDevice.ScsiTopology.Adapter){
if($adapter.Adapter -eq $hbaKey){
foreach($tgt in $adapter.Target){
foreach($lun in $tgt.Lun){
if($lun.Lun -eq $lunId){
$lunKey = $lun.Key
continue
}
}
continue
}
continue
}
}
foreach($lun in $esx.Config.StorageDevice.ScsiLun){
if($lun.Uuid -eq $lunKey){
$path = $lun.DevicePath
continue
}
}
# Create raw disk
Get-VM $vmName | New-HardDisk -DiskType RawVirtual -DeviceName $path
Fyi different LUNs with the same LUNid, albeit under different targets, is possible.