[root@localhost ~]# fdisk -l
Disk /dev/sdb:21.5 GB, 21474836480 bytes, 41943040 sectors
Disk /dev/sdc:21.5 GB, 21474836480 bytes, 41943040 sectors
Disk /dev/sdd:21.5 GB, 21474836480 bytes, 41943040 sectors
[root@localhost ~]# fdisk /dev/sdb
设备 Boot Start End Blocks Id System
/dev/sdb1 2048 41943039 20970496 fd Linux raid autodetect
[root@localhost ~]# fdisk /dev/sdc
设备 Boot Start End Blocks Id System
/dev/sdc1 2048 41943039 20970496 fd Linux raid autodetect
[root@localhost ~]# fdisk /dev/sdd
设备 Boot Start End Blocks Id System
/dev/sdd1 2048 41943039 20970496 fd Linux raid autodetect
[root@localhost ~]# mdadm -C /dev/md5 -l 5 -n 3 /dev/sd[bcd]1
mdadm: Defaulting to version 1.2 metadata
mdadm: array /dev/md5 started.
[root@localhost ~]# mdadm -D -s >/etc/mdadm.conf
[root@localhost ~]# vi /etc/mdadm.conf
DEVICE /dev/mdb1 /dev/mdc1 /dev/mdd1 ARRAY /dev/md5 metadata=1.2 spares=1 name=localhost.localdomain:5 UUID=cd5a4c44:f3ff919d:48f40c04:3251b32c auto=yes
[root@localhost ~]# mkfs.xfs /dev/md5
meta-data=/dev/md5 isize=512 agcount=16, agsize=654720 blks
= sectsz=512 attr=2, projid32bit=1
= crc=1 finobt=0, sparse=0
data = bsize=4096 blocks=10475520, imaxpct=25
= sunit=128 swidth=256 blks
naming =version 2 bsize=4096 ascii-ci=0 ftype=1
log =internal log bsize=4096 blocks=5120, version=2
= sectsz=512 sunit=8 blks, lazy-count=1
realtime =none extsz=4096 blocks=0, rtextents=0
[root@localhost ~]# blkid /dev/md5 >>/etc/fstab
[root@localhost ~]# vi /etc/fstab
UUID=cc978607-fca9-4a43-8a17-fa728445b322 /data xfs defaults 0 0
[root@localhost ~]# fdisk /dev/md5
设备 Boot Start End Blocks Id System
/dev/md5p1 2048 83816447 41907200 8e Linux LVM
[root@localhost ~]# partprobe /dev/md5p1
[root@localhost ~]# pvcreate /dev/md5p1
Physical volume "/dev/md5p1" successfully created.