ok, so according to this. env status don't see any issues with the shelf / electrical.
but you have two disks reporting as non responding in shelf 6 bays 21 - 22 showing in sysconfig -r and sysconfig -a
The disks with the lights on could be the ones with the "prefail" status - that are not being replaced as you don't have spare disks on that node
now please remember that whatever me or anyone else writing here is not set in stone, we do not have full view of your system, and you should evaluate any given advice by yourself or with other professional, as no one at the community or NetApp can take responsibility for data loss or availability loss that advice on the community can might cause..
so - in that case. i would run the commands once again, confirm that nothing has changed. then take one of these 6.21/22 disks out. wait 60 seconds and put it back in. look on the ssh console as you do this to see if any interesting messages shows.
after that. run the commands again and see if these any improvement and if so. repeat on the other disk..
if there is no improvement. i would try to see if there's a spare disk on the partner node (w08-nbsan528) that you can take out. and put one of the 6.21/22 disk to eliminate an issue with the Bay.
once you did this. if it's not recovered. please provide the outputs again. as well as:
cat /etc/messages
sasadmin expander_phy_state 0b.06
