Meguinness Unfortunately the output you posted confirms you've lost your array. Apart from something odd happening to /dev/sde, you can see that two drives dropped out of the raid array as indicated by lines 63 & 123.
As already mentioned SMR drives are going to perform badly in any type of MD RAID array, whether it uses parity or mirrors. They suffer from very long build times in RAID. SMR drives might be OK for backup drives or as single drives for media, possibly with mergerfs, but I'd have questions if used with mergerfs+ SnapRAID.
thank you....what are the chances that 2 drives loose the raid at the same time? could as well be my raid card? as i will not able to replace all 4x 6tb drives at the moment what configuration other then raid you suggest i could use to minimize data loss again? thanx