阿里云 ECS 逻辑卷挂载数据盘

查看磁盘信息：

[root@ixx~]# fdisk -l

Disk /dev/xvda: 21.5 GB, 21474836480 bytes

255 heads, 63 sectors/track, 2610 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00078f9c

Device Boot Start End Blocks Id System

/dev/xvda1 * 1 2611 20970496 83 Linux

Disk /dev/xvdb: 107.4 GB, 107374182400 bytes

255 heads, 63 sectors/track, 13054 cylinders

Units = cylinders of 16065 * 512 = 8225280 bytes

Sector size (logical/physical): 512 bytes / 512 bytes

I/O size (minimum/optimal): 512 bytes / 512 bytes

Disk identifier: 0x00000000

2、数据磁盘分区

fdisk /dev/xvdb

(p->n->p->1->()->()->w)

3、创建物理卷

pvcreate /dev/xvdb1

4、创建卷组

vgcreate vg_bjcy /dev/xvdb1

5、查看物理卷信息

pvdisplay

6、创建逻辑卷（25599（Total PE）的数值是由上一步查询到的物理卷信息决定的）

lvcreate -l 25599 -n lv_bjcy vg_bjcy

7、格式化逻辑卷（可先lvdisplay确认逻辑卷路径）

mkfs.ext4 /dev/vg_bjcy/lv_bjcy

8、挂载逻辑卷

mkdir /data && mount /dev/mapper/vg_bjcy-lv_bjcy /data

9、配置开机自动挂载（注意格式，最后不要直接复制）

vim /etc/fstab

/dev/mapper/vg_bjcy-lv_bjcy /data ext4 defaults 0 0

10.删除逻辑卷/逻辑卷组

lvremove /dev/vg_bjcy/lv_bjcy

vgremove vg_bjcy

来源：https://www.cnblogs.com/bailaobo/p/5324674.html

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