Install MPIO
Install the MPIO software. Select the version depending the firmware of the hardware. In our case is it MSA1500cof HP.
Because you can have two versions:
  • Active/Passive   => Firmware: v5.10/1.52     => HP MPIO Basic DSM 1.3
  • Active/Active      => Firmware: v6.86            => HP MPIO Basic DSM 2.0
First it install Microsoft MPIO framework, after which it's ask to reboot.
Then it install HP MPIO version, after which a reboot again required.