Data Backup and Recovery Discussions

Multipathing on Netapp filer for LUN


Hi Guys,

I just want to know how to configure multipathing from NetApp filer to Windows Server or ESX server. Please find the below image and let me know how the multipathing is to be configured from Netapp storage to windows server or ESX.





Hi Vinay

You need to install the NetApp Device Specific Module (DSM) on the Windows server. It is also a good idea to install the Host Utilities Kit.

For ESX or ESXi you just need to set the Path Selection Policy to Round Robin (VMware) in the LUN properties. You can install the Host Utilities Kit on ESX but ESXi does not support this.

It is also a good idea to enable ALUA on your storage array igroups.


Hi there,

for Windows just use Data ONTAP DSM, with latest version there is no need for host utils anymore.

For ESX use the virtual storage console, works fine with ESX and ESXi and sets all recommended values.



do you have snapdrive installed on the host ? if not snap drive would be the best option for managing the LUNs / paths as well


SnapDrive itself does not manage paths:

"MPIO is not installed with SnapDrive for Windows versions later than 4.1, and path management is not available until a new version of MPIO is installed."

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