auto-read-onlyを初めて見た

月１のmdadmの再同期？が始まっていたのだが、auto-read-onlyっていうのを初めて見た
これとはちょっと違うが、様子見かな？
https://unix.stackexchange.com/questions/101072/new-md-array-is-auto-read-only-and-has-resync-pending

# cat /proc/mdstat 
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10] 
md0 : active raid5 sdi1[4] sdh1[0] sdg1[3]
      1952863232 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/3] [UUU]
      [============>........]  check = 64.2% (627312676/976431616) finish=167.4min speed=34752K/sec
      
md1 : active raid5 sdi2[4] sdh2[0] sdg2[3]
      1952863232 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/3] [UUU]
      	resync=DELAYED
      
md124 : active raid5 sdf2[4] sde2[1] sdd2[3]
      1953573888 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/3] [UUU]
      [=============>.......]  check = 67.3% (657518992/976786944) finish=150.9min speed=35247K/sec
      
md125 : active raid5 sdf1[4] sde1[1] sdd1[3]
      1952859136 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/3] [UUU]
      	resync=DELAYED
      
md126 : active (auto-read-only) raid5 sdc1[0] sda1[1] sdb1[2]
      1952859136 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/3] [UUU]
      
md127 : active raid5 sdc2[0] sda2[1] sdb2[2]
      1953641472 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/3] [UUU]
      [=============>.......]  check = 66.6% (650922652/976820736) finish=158.0min speed=34358K/sec
      
unused devices: <none>