1 查看目前分区状况
[root@test ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 446.1G 0 disk
├─sda1 8:1 0 2M 0 part
├─sda2 8:2 0 500M 0 part /boot
└─sda3 8:3 0 132G 0 part
├─cl-root 253:0 0 50G 0 lvm /
├─cl-swap 253:1 0 32G 0 lvm [SWAP]
└─cl-home 253:2 0 50G 0 lvm /home
sdb 8:16 0 5.5T 0 disk
└─sdb1 8:17 0 5.5T 0 part /data01
sdc 8:32 0 5.5T 0 disk
└─sdc1 8:33 0 5.5T 0 part /data02
sdd 8:48 0 5.5T 0 disk
└─sdd1 8:49 0 5.5T 0 part /data03
sde 8:64 0 5.5T 0 disk
└─sde1 8:65 0 5.5T 0 part /data04
sdf 8:80 0 5.5T 0 disk
└─sdf1 8:81 0 5.5T 0 part /data05
sdg 8:96 0 5.5T 0 disk
└─sdg1 8:97 0 5.5T 0 part /data06
sdh 8:112 0 5.5T 0 disk
└─sdh1 8:113 0 5.5T 0 part /data07
sdi 8:128 0 5.5T 0 disk
└─sdi1 8:129 0 5.5T 0 part /data08
sdj 8:144 0 5.5T 0 disk
└─sdj1 8:145 0 5.5T 0 part /data09
sdk 8:160 0 5.5T 0 disk
└─sdk1 8:161 0 5.5T 0 part /data10
sdl 8:176 0 5.5T 0 disk
└─sdl1 8:177 0 5.5T 0 part /data11
sdm 8:192 0 5.5T 0 disk
└─sdm1 8:193 0 5.5T 0 part /data12
2 新增分区，选择primary分区
[root@test ~]# fdisk /dev/sda
The device presents a logical sector size that is smaller than
the physical sector size. Aligning to a physical sector (or optimal
I/O) size boundary is recommended, or performance may be impacted.
Welcome to fdisk (util-linux 2.23.2).
Changes will remain in memory only, until you decide to write them.
Be careful before using the write command.
Command (m for help): p
Disk /dev/sda: 479.0 GB, 478998953984 bytes, 935544832 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 65536 bytes / 65536 bytes
Disk label type: dos
Disk identifier: 0x0003ae25
Device Boot Start End Blocks Id System
/dev/sda1 2048 6143 2048 83 Linux
/dev/sda2 * 6144 1030143 512000 83 Linux
/dev/sda3 1030144 277870591 138420224 8e Linux LVM
Command (m for help): n
Partition type:
p primary (3 primary, 0 extended, 1 free)
e extended
Select (default e): p
Selected partition 4
First sector (277870592-935544831, default 277870592):
Using default value 277870592
Last sector, +sectors or +size{K,M,G} (277870592-935544831, default 935544831):
Using default value 935544831
Partition 4 of type Linux and of size 313.6 GiB is set
Command (m for help): p
Disk /dev/sda: 479.0 GB, 478998953984 bytes, 935544832 sectors
Units = sectors of 1 * 512 = 512 bytes
Sector size (logical/physical): 512 bytes / 4096 bytes
I/O size (minimum/optimal): 65536 bytes / 65536 bytes
Disk label type: dos
Disk identifier: 0x0003ae25
Device Boot Start End Blocks Id System
/dev/sda1 2048 6143 2048 83 Linux
/dev/sda2 * 6144 1030143 512000 83 Linux
/dev/sda3 1030144 277870591 138420224 8e Linux LVM
/dev/sda4 277870592 935544831 328837120 83 Linux
Command (m for help): w
The partition table has been altered!
Calling ioctl() to re-read partition table.
WARNING: Re-reading the partition table failed with error 16: Device or resource busy.
The kernel still uses the old table. The new table will be used at
the next reboot or after you run partprobe(8) or kpartx(8)
Syncing disks.
3 刷新分区
[root@test ~]# partprobe
4 将新分区加入vg中
[root@test ~]# vgextend cl /dev/sda4
Physical volume "/dev/sda4" successfully created.
Volume group "cl" successfully extended
[root@test ~]# vgs
VG #PV #LV #SN Attr VSize VFree
cl 2 3 0 wz--n- 445.61g 313.61g
[root@test ~]# lvextend -l +100%FREE /dev/cl/root
Size of logical volume cl/root changed from 50.00 GiB (12800 extents) to 363.61 GiB (93083 extents).
Logical volume cl/root successfully resized.
5 扩展根卷lv
[root@test ~]# resize
COLUMNS=119;
LINES=33;
export COLUMNS LINES;
[root@test ~]# resize2fs /dev/cl/root
resize2fs 1.42.9 (28-Dec-2013)
Filesystem at /dev/cl/root is mounted on /; on-line resizing required
old_desc_blocks = 7, new_desc_blocks = 46
The filesystem on /dev/cl/root is now 95316992 blocks long.
6 扩展后确认
[root@test ~]# lsblk
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 446.1G 0 disk
├─sda1 8:1 0 2M 0 part
├─sda2 8:2 0 500M 0 part /boot
├─sda3 8:3 0 132G 0 part
│ ├─cl-root 253:0 0 363.6G 0 lvm /
│ ├─cl-swap 253:1 0 32G 0 lvm [SWAP]
│ └─cl-home 253:2 0 50G 0 lvm /home
└─sda4 8:4 0 313.6G 0 part
└─cl-root 253:0 0 363.6G 0 lvm /
sdb 8:16 0 5.5T 0 disk
└─sdb1 8:17 0 5.5T 0 part /data01
sdc 8:32 0 5.5T 0 disk
└─sdc1 8:33 0 5.5T 0 part /data02
sdd 8:48 0 5.5T 0 disk
└─sdd1 8:49 0 5.5T 0 part /data03
sde 8:64 0 5.5T 0 disk
└─sde1 8:65 0 5.5T 0 part /data04
sdf 8:80 0 5.5T 0 disk
└─sdf1 8:81 0 5.5T 0 part /data05
sdg 8:96 0 5.5T 0 disk
└─sdg1 8:97 0 5.5T 0 part /data06
sdh 8:112 0 5.5T 0 disk
└─sdh1 8:113 0 5.5T 0 part /data07
sdi 8:128 0 5.5T 0 disk
└─sdi1 8:129 0 5.5T 0 part /data08
sdj 8:144 0 5.5T 0 disk
└─sdj1 8:145 0 5.5T 0 part /data09
sdk 8:160 0 5.5T 0 disk
└─sdk1 8:161 0 5.5T 0 part /data10
sdl 8:176 0 5.5T 0 disk
└─sdl1 8:177 0 5.5T 0 part /data11
sdm 8:192 0 5.5T 0 disk
└─sdm1 8:193 0 5.5T 0 part /data12
[root@test ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/cl-root 358G 7.1G 336G 3% /
devtmpfs 189G 0 189G 0% /dev
tmpfs 189G 84K 189G 1% /dev/shm
tmpfs 189G 155M 188G 1% /run
tmpfs 189G 0 189G 0% /sys/fs/cgroup
/dev/sda2 477M 143M 305M 32% /boot
/dev/sdc1 5.5T 89M 5.2T 1% /data02
/dev/sdl1 5.5T 89M 5.2T 1% /data11
/dev/sdh1 5.5T 89M 5.2T 1% /data07
/dev/sdf1 5.5T 89M 5.2T 1% /data05
/dev/sdi1 5.5T 89M 5.2T 1% /data08
/dev/sdb1 5.5T 89M 5.2T 1% /data01
/dev/sdk1 5.5T 89M 5.2T 1% /data10
/dev/sdd1 5.5T 89M 5.2T 1% /data03
/dev/sdj1 5.5T 89M 5.2T 1% /data09
/dev/sdm1 5.5T 59M 5.2T 1% /data12
/dev/sde1 5.5T 89M 5.2T 1% /data04
/dev/sdg1 5.5T 89M 5.2T 1% /data06
/dev/mapper/cl-home 50G 53M 47G 1% /home
tmpfs 38G 16K 38G 1% /run/user/42
tmpfs 38G 0 38G 0% /run/user/0
[root@test ~]#
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