我有一台 CentOS 6.6 服务器，其中有 13 个磁盘，组成 RAID 6。几周前，我将其升级到 17 个磁盘，其中两个配置为备用磁盘。重塑一开始像往常一样工作。但在 69% 时它停止了。
md2 : active raid6 sdj1[0] sdg1[18](S) sdh1[2] sdi1[5] sdm1[15] sds1[12] sdr1[14] sdk1[9] sdo1[6] sdn1[13] sdl1[8] sdd1[20] sdf1[19] sdq1[16] sdb1[10] sde1[17](S) sdc1[21]
19533803520 blocks super 1.2 level 6, 1024k chunk, algorithm 2 [15/15] [UUUUUUUUUUUUUUU]
[=============>.......] reshape = 69.0% (1347861324/1953380352) finish=46103134.8min speed=0K/sec
我已经尝试停止突袭并重新启动它，重塑将启动但几分钟后再次停止。如果我重新启动服务器，重塑将不会启动：
md2 : active raid6 sdj1[0] sdg1[18](S) sdh1[2] sdi1[5] sdm1[15] sds1[12] sdr1[14] sdk1[9] sdo1[6] sdn1[13] sdl1[8] sdd1[20] sdf1[19] sdq1[16] sdb1[10] sde1[17](S) sdc1[21]
19533803520 blocks super 1.2 level 6, 1024k chunk, algorithm 2 [15/15] [UUUUUUUUUUUUUUU]
resync=PENDING
只要我再次重新启动突袭，它就会启动重塑过程并像上面一样停止它。
在 dmesg 和消息日志中我刚刚发现：
消息
md/raid:md2: reshape: not enough stripes. Needed 1024
消息
23:14:56 data kernel: md/raid:md2: not clean -- starting background reconstruction
23:14:56 data kernel: md/raid:md2: reshape will continue
23:14:56 data kernel: md/raid:md2: device sdj1 operational as raid disk 0
23:14:56 data kernel: md/raid:md2: device sdh1 operational as raid disk 2
23:14:56 data kernel: md/raid:md2: device sdi1 operational as raid disk 5
23:14:56 data kernel: md/raid:md2: device sdn1 operational as raid disk 11
23:14:56 data kernel: md/raid:md2: device sds1 operational as raid disk 3
23:14:56 data kernel: md/raid:md2: device sdm1 operational as raid disk 1
23:14:56 data kernel: md/raid:md2: device sdf1 operational as raid disk 14
23:14:56 data kernel: md/raid:md2: device sdd1 operational as raid disk 13
23:14:56 data kernel: md/raid:md2: device sdb1 operational as raid disk 10
23:14:56 data kernel: md/raid:md2: device sdq1 operational as raid disk 7
23:14:56 data kernel: md/raid:md2: device sdr1 operational as raid disk 4
23:14:56 data kernel: md/raid:md2: device sdl1 operational as raid disk 8
23:14:56 data kernel: md/raid:md2: device sdk1 operational as raid disk 9
23:14:56 data kernel: md/raid:md2: device sdc1 operational as raid disk 12
23:14:56 data kernel: md/raid:md2: device sdo1 operational as raid disk 6
23:14:56 data kernel: md/raid:md2: allocated 0kB
23:14:56 data kernel: md/raid:md2: raid level 6 active with 15 out of 15 devices, algorithm 2
23:14:56 data kernel: md2: Warning: Device sdi1 is misaligned
23:14:56 data kernel: md2: detected capacity change from 0 to 20002614804480
23:14:56 data kernel: md2: unknown partition table
23:14:56 data kernel: XFS (md2): Mounting Filesystem
23:14:56 data kernel: md/raid:md2: reshape: not enough stripes. Needed 1024
23:14:56 data kernel: XFS (md2): Ending clean mount
所以我修复了条纹：
cat /sys/block/md2/md/stripe_cache_size
16384
但重塑仍然不起作用，并且日志中仍然出现相同的错误。
有人知道吗？