研究了半天 弄明白了。正在构建中。 md2 : active raid10 sdc2[4] sdb2[3](S) sda2[2](S) sdd2[1] 3889583104 blocks super 1.2 2 near-copies [2/1] [U_] [>………………..] recovery = 0.3% (11848896/3889583104) finish=357.3min speed=180827K/sec