1.首先使用fdisk对新磁盘分区并格式化

Command (m for help): n

Command action

  e   extended

  p   primary partition (1-4)

p  

Partition number (1-4): 1

First sector (63-2097151999, default 63):

Using default value 63

Last sector or +size or +sizeM or +sizeK (63-2097151999, default 2097151999):

Using default value 2097151999

Command (m for help): w

The partition table has been altered!

Calling ioctl() to re-read partition table.

Syncing disks.

2.使用parted将分区转为PV

Number  Start   End     Size    Type     File system  Flags

1      32.3kB  1074GB  1074GB  primary                    

(parted) toggle 1 LVM                                                    

(parted) p                                                                

Model: VMware, VMware Virtual S (scsi)

Disk /dev/sdc: 1074GB

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

Partition Table: msdos

Number  Start   End     Size    Type     File system  Flags

1      32.3kB  1074GB  1074GB  primary               lvm

3.将PV加入VG

[root@mio-100 ~]# vgextend lv_1 /dev/sdc1

 /dev/cdrom: open failed: Read-only file system

 No physical volume label read from /dev/sdc1

 Physical volume "/dev/sdc1" successfully created

 Volume group "lv_1" successfully extended

4.查看VG状态

root@mio-100 ~]# vgdisplay

 --- Volume group ---

 VG Name               lv_1

 System ID            

 Format                lvm2

 Metadata Areas        3

 Metadata Sequence No  4

 VG Access             read/write

 VG Status             resizable

 MAX LV                0

 Cur LV                1

 Open LV               1

 Max PV                0

 Cur PV                3

 Act PV                3

 VG Size               1.01 TB

 PE Size               32.00 MB

 Total PE              33199

 Alloc PE / Size       604 / 18.88 GB

 Free  PE / Size       32595 / 1018.59 GB

 VG UUID               qEFNCV-JQFW-K41E-m7XY-Rfo1-4yBM-rMO3rO

5.向LV添加空间

[root@mio-100 ~]# lvextend -L +500G /dev/lv_1/Lv_main

 /dev/cdrom: open failed: Read-only file system

 Extending logical volume Lv_main to 518.88 GB

 Logical volume Lv_main successfully resized

6.扩展文件系统 resize2fs

[root@mio-100 ~]# resize2fs -f /dev/mapper/lv_1-Lv_main

resize2fs 1.39 (29-May-2006)

Filesystem at /dev/mapper/lv_1-Lv_main is mounted on /; on-line resizing required

Performing an on-line resize of /dev/mapper/lv_1-Lv_main to 136019968 (4k) blocks.

The filesystem on /dev/mapper/lv_1-Lv_main is now 136019968 blocks long.

[root@mio-100 ~]# df -h

Filesystem            Size  Used Avail Use% Mounted on

/dev/mapper/lv_1-Lv_main

                     503G  1.8G  475G   1% /

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