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1 增加磁盘并分区(修改id)
fdisk /dev/sdb
Command (m for help): p
Disk /dev/sdb: 8589 MB, 8589934592 bytes
255 heads, 63 sectors/track, 1044 cylinders
Units = cylinders of 16065 * 512 = 8225280 bytes
Device Boot Start End Blocks Id System
/dev/sdb1 1 244 1959898+ fd Linux raid autodetect
/dev/sdb2 245 488 1959930 fd Linux raid autodetect
/dev/sdb3 489 732 1959930 fd Linux raid autodetect
/dev/sdb4 733 1044 2506140 fd Linux raid autodetect
2 创建raid
[root@gc1 md01]# which mdadm
/sbin/mdadm
3 查看raid的状态(我创建的是/dev/md02)
[root@gc1 md0
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