MSA 1040 array appears twice in Windows Disk Management

[Damio]

Hello,

I've been trying to find a definitive answer for this, as some forums are presenting contradicting stories.
I'm assuming it is related to the MPIO, but as I am on Server 2012 R2, the DSM ".inf" file just simply does not exist.

Has any one ran into this before?

[HPSDMike]

You need to get MPIO installed and working properly.  Review the MPIO section of the best practice guide for more info

https://h20195.www2.hpe.com/v2/GetDocument.aspx?docname=4AA4-6892ENW

I believe you are just using the native Windows MPIO so shouldn't be any HPE specific stuff to download. This link for Windows 2008 may help you to enable MPIO; I think the steps are the same for Windows 2012. 

[Cali]

Use:

ocsetup MultiPathIO /norestart

For SAS MSA:
mpclaim -n -i -d "HP      MSA 1040 SAS"

For SAN (FC) MSA:

mpclaim -n -i -d "HP      MSA 1040 SAN"

Reboot the Server