We have a bunch of predictive failures which should be taken care of - however it is not worth of replace those disks until actual failure.
I keep this list updated.
[x] db2035 s2 master T224456 to be decommissioned
[x] db2037 m5 codfw master T221512 to be decommissioned
[x] db2043 s3 master to be decommissioned
[x] db2044 m2 codfw master T217755 T227829 to be decommissioned
[x] db2047 s7 master T212966 # to be decommissioned
[x] db2049 s2 T227107 to be decommissioned
[x] db2050 s3 to be decommissioned
[x] db2051 s4 to be decommissioned
[x] db2052 s5 master T218776 to be decommissioned
[x] db2053 s6 to be decommissioned T231407
[x] db2055 to be decommissioned T233186
[] db2061 s7
[x] db2063 s2 to be decommissioned
[] db2067 m2
[x] db2070 s1 T219852
[] db1070 s5 master
[x] db1072 m3 master to be decommissioned
[x] db1073 m5 master T215050 to be decommissioned
[x] db1065 m2 master to be decommissioned
[x] db1063 m1 master T211537 to be decommissioned
[x] db1069 x1 master to be decommissioned