Hello InfraMED, I am glad that you found out that there was no HS for the bus.  It is best practice to have at least 1 HS drive per 30 drives.
Hello: Recently we have two fail disk at our VNX 5500. One of them it shows a 'Hot spare disk replacing' state correctly but the other it doesnt appear with their hot spare disk. This failed disk show 'Removed' state.Can we replace this failed disk apparently without hot spare with minimal impact?Thank in advanced.
Failed Disk without Hot Spare Replicaing