Hi I am working with OnCommand System Manager 3.1.3, I am adding some LUNs by FC to Windows but when adding the initiator. It duplicates the disks when I enter the disk manager. I need to know why this is happening.
To do this, click Start, click Administrative Tools, and then click Server Manager.
In Server Manager, click Features, and then click Add Features.
Select the Multipath I/O feature for installation, and then click Next. Finish the installation by confirming the selections, and then restart the server.
If you have multiple paths between a storage system and a Windows host computer, you must have some type of MPIO software so that the Windows disk manager sees all of the paths as a single virtual disk.
Multiple paths require MPIO software:https://library.netapp.com/ecm/ecm_get_file/ECMP1307349
I was indeed missing the MPIO, thank you very much.