背景

线上新加7台服务器，每台除了100G系统盘外，还挂载了4*4T硬盘，准备用LVM做成一块16T逻辑盘。此处记录一下。

 

步骤如下

 

说明

安装Parted分区工具，Parted支持2T以上的硬盘，fdisk分区工具最大支持2T硬盘。MBR分区格式最大支持2T空间；gpt分区格式可以支持大于2T。

yum install parted

 

1、查看软件及磁盘信息

 

首先查看软件是否安装：

[root@q-bi-01 ~]# rpm -qa |grep lvm

lvm2-2.02.177-4.el7.x86_64

lvm2-libs-2.02.177-4.el7.x86_64

 

查看磁盘情况

[root@q-bi-05 ~]# fdisk -l

Disk /dev/vda: 107.4 GB, 107374182400 bytes, 209715200 sectors

Units = sectors of 1 * 512 = 512 bytes

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

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

Disk label type: dos

Disk identifier: 0x0005fc9a

Device Boot Start End Blocks Id System

/dev/vda1 * 2048 209715199 104856576 83 Linux

 

Disk /dev/vdb: 4000.8 GB, 4000787030016 bytes, 7814037168 sectors

Units = sectors of 1 * 512 = 512 bytes

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

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

 

Disk /dev/vdc: 4000.8 GB, 4000787030016 bytes, 7814037168 sectors

Units = sectors of 1 * 512 = 512 bytes

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

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

 

Disk /dev/vdd: 4000.8 GB, 4000787030016 bytes, 7814037168 sectors

Units = sectors of 1 * 512 = 512 bytes

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

I/O size (minimum/optimal): 512