Multipath HA is available for our SAS disk shelf & we configured ACP aswell, but i didn't understatnd why we need to configure ACP? how it will be helpfull? can any one explain me how the ACP will work & what is the necessity of using ACP.
ACP or Alternate Control Path... allows updates to firmware by using this path over the data paths to your shelves & disks. It's a simple setup & should be done on all your configurations.