Home > Storage > PowerMax and VMAX > Storage Admin > iSCSI Implementation Guide for Dell EMC Storage Arrays Running PowerMaxOS > If not already installed, install multipathing software on Windows host
Install multipathing software such as PowerPath or Microsoft Multipath I/O (MPIO). There currently are published guides on how to install PowerPath on Windows platforms so this section will focus on installing Window’s native Multipath I/O utility (MPIO). MPIO is an optional feature in Windows Server 2016, and is not installed by default. The following section will demonstrate how to install MPIO on a running Windows Server 2016 host.
Check to see if Multipath-IO is installed or available to be installed on the server:
PS C:\> Get-WindowsFeature -name multipath-io
Display Name Name Install State
------------ ------------- -------------
[ ] Multipath I/O MultipathIO Available <----
If not "Installed," install Multipath IO:
Use the “install-WindowsFeature” cmdlet to install the Multipath IO feature.
PS C:\> Install-WindowsFeature -name multipath-io
Success Restart Needed Exit Code Feature Result
------- -------------- --------- --------------
True No Success {Multipath I/O}
Verify that Multipath-IO now shows up in the installed Windows features output.
PS C:\> Get-WindowsFeature | ? installed
Display Name Name Install State
------------ ---- -------------
[X] File and Storage Services FileAndStorage-Services Installed
[X] Storage Services Storage-Services Installed
[X] .NET Framework 4.5 Features NET-Framework-45-Fea... Installed
[X] .NET Framework 4.5 NET-Framework-45-Core Installed
[X] WCF Services NET-WCF-Services45 Installed
[X] TCP Port Sharing NET-WCF-TCP-PortShar... Installed
[X] Multipath I/O Multipath-IO Installed <----
[X] SMB 1.0/CIFS File Sharing Support FS-SMB1 Installed
[X] User Interfaces and Infrastructure User-Interfaces-Infra Installed
[X] Graphical Management Tools and Infrastructure Server-Gui-Mgmt-Infra Installed
[X] Server Graphical Shell Server-Gui-Shell Installed
[X] Windows PowerShell PowerShellRoot Installed
[X] Windows PowerShell 4.0 PowerShell Installed
[X] Windows PowerShell ISE PowerShell-ISE Installed
[X] WoW64 Support WoW64-Support Installed
Set MPIO to automatically claim new iSCSI devices when they are presented to the host:
PS C:\> Enable-MSDSMAutomaticClaim -BusType iSCSI
PS C:\> Get-MSDSMSupportedHW
VendorId ProductId
-------- ---------
Vendor 8 Product 16
MSFT2005 iSCSIBusType_0x9 <----
Set MPIO load-balancing policy to be round robin (RR):
PS C:\> Set-MSDSMGlobalDefaultLoadBalancePolicy -Policy RR