Additional hard disk space for LVM disks under Linux

additional hard disk space for LVM disks under LINUX

1, add a new hard disk to the client

2, restart the client

3. View entire disk space with fdisk-l

#fdisk-L

disk/dev/sda:34.4 GB, 34359738368 bytes

255 heads, Sectors/track, 4177 cylinders

Units = Cylinders of 16065 * 8225280 bytes

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

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

Disk identifier:0x000b2d34

Device Boot Start End Blocks Id System

/DEV/SDA1 * 1 512000 Linux

Partition 1 does not end on cylinder boundary.

/dev/sda2 4178 33041408 8e Linux LVM

disk/dev/sdb:214.7 GB, 214748364800 bytes// Newly added disk drive

255 heads, Sectors/track, 26108 cylinders

Units = Cylinders of 16065 * 8225280 bytes

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

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

Disk identifier:0x00000000

disk/dev/mapper/volgroup-lv_root:30.4 GB, 30396121088 bytes

255 heads, Sectors/track, 3695 cylinders

Units = Cylinders of 16065 * 8225280 bytes

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

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

Disk identifier:0x00000000

disk/dev/mapper/volgroup-lv_swap:3435 MB, 3435134976 bytes

255 heads, Sectors/track, 417 cylinders

Units = Cylinders of 16065 * 8225280 bytes

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

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

Disk identifier:0x00000000

4. Add a new hard disk to the physical volume with pvcreate/dev/sdb

Pvcreate/dev/sdb

Physical volume "/dev/sdb" successfully created

5. Add a new hard disk to the volume group with vgextend volgroup/dev/sdb

Vgextend Volgroup/dev/sdb

Volume Group "VolGroup" successfully extended

6, diffusion space lvextend-l +200g/dev/mapper/volgroup-lv_root for root partition

Lvextend-l +180g/dev/mapper/volgroup-lv_root// plus 180G

Lvextend-l +100%free/dev/volgroup-lv_root// plus all

Extending logical Volume Lv_root to 208.31 GiB

Logical Volume Lv_root successfully resized

7, apply it to resize2fs/dev/volgroup/lv_root

Resize2fs/dev/volgroup/lv_root

RESIZE2FS 1.41.12 (17-may-2010)

Filesystem at/dev/volgroup/lv_root is mounted on/; On-line resizing required

Old desc_blocks = 2, new_desc_blocks = 14

Performing an on-line resize of/dev/volgroup/lv_root to 54606848 (4k) blocks.

The filesystem on/dev/volgroup/lv_root is now 54606848 blocks long.

8, then with DF

–H view space, joined

Df-h

Filesystem Size used Avail use% mounted on

/dev/mapper/volgroup-lv_root 206G 5.7G 189G 3%/

Tmpfs 1.9G 0 1.9G 0%/dev/shm

/DEV/SDA1 485M 32M 428M 7%/boot

9, Other details

This article is from the "Jinchuang" blog, make sure to keep this source http://jinchuang.blog.51cto.com/8690689/1844414

Additional hard disk space for LVM disks under Linux