Resync triggered again (September 23) for no apparent reason :
sudo dmesg | grep md127
[ 3.042521] md/raid:md127: not clean -- starting background reconstruction
[ 3.042531] md/raid:md127: device sda1 operational as raid disk 0
[ 3.042531] md/raid:md127: device sdb1 operational as raid disk 1
[ 3.042531] md/raid:md127: device sdc1 operational as raid disk 2
[ 3.042741] md/raid:md127: raid level 5 active with 3 out of 3 devices, algorithm 2
[ 3.042811] md127: bitmap file is out of date (13477 < 13478) -- forcing full recovery
[ 3.042820] md127: bitmap file is out of date, doing full recovery
[ 3.128357] md127: detected capacity change from 0 to 1717716385792
[ 3.133982] md127: AHDI p1 p3
[ 3.134008] md127: p1 size 3214817840 extends beyond EOD, truncated
[ 10.754470] md127: AHDI p1 p3
[ 10.754475] md127: p1 size 3214817840 extends beyond EOD, truncated
[ 10.971872] md: resync of RAID array md127
cat /proc/mdstat
Personalities : [raid6] [raid5] [raid4] [linear] [multipath] [raid0] [raid1] [raid10]
md127 : active raid5 sda1[0] sdb1[1] sdc1[3]
1677457408 blocks super 1.2 level 5, 512k chunk, algorithm 2 [3/3] [UUU]
[==>..................] resync = 10.9% (91796180/838728704) finish=77.8min speed=159943K/sec
bitmap: 7/7 pages [28KB], 65536KB chunk
unused devices: <none>
Eric