Adaptec 5805 RAID 6 Rebuilding

I have 8x Hitachi 5K3000 3TB drives in RAID6, the following is from the command line config…

So device 4 is rebuilding here (although no HDD led’s are flashing which they usually do?)
Is there anyway to find out how long this will take? Or get some sort of status

Really not a fan of the Adaptec software, my Areca card is much more user friendly!!