If you use Fibre Channel or iSCSI storage devices, the use of multipathing and having multiple paths between your hosts and the SAN are highly recommended. Depending on the recommendations made by your storage vendor, you have to set the multipathing policy to either Fixed, Most Recently Used (MRU), or Round Robin (RR).

You can use the Get-ScsiLun cmdlet to retrieve the current multipathing policy for your LUNs as follows:

PowerCLI C:\> Get-VMHost -Name 192.168.0.133 | Get-ScsiLun |
>> Where-Object {$_.LunType -eq 'disk'} |
>> Select-Object -Property CanonicalName,LunType,MultipathPolicy
>>

The following is the output of the preceding command:

CanonicalName                        LunType  MultipathPolicy
-------------                        -...