Promise RAID and Seagate HD’s

Today I worked with a Server that we gonna deliver to a costumer. But something was not right. The HD LED’s on the bracket lights red constantly. They should not do that if there isn’t any activity on the drives. And the performance was really bad. The configure was not complicated. I ran two HD’s in RAID 1. And for that I thought that Seagate ST31000528AS would work. So I changed the drives to Samsung HD103SJ. TADA!!!! Now the constantly red HD LED’s is gone. It lights red as it should do when a activity occurs. And performance is very good. So be careful witch HD’s you match with Promise TX4650 RAID card.