Realize the mount and online expansion of logical volumes

The experiment achieves its goal:

Realize the mount and online expansion of logical volumes

Introduction: colored fonts in the text are particularly important points for attention.

/ / Notes, easy for readers to understand

[root@localhost ~] # fdisk / dev/sdc / / A partition of sdc disk is shown in the attached sdc diagram

[root@localhost ~] # fdisk / dev/sdd / / A partition of sdd disk is shown in the attached sdd diagram

[root@localhost ~] # pvcreate/dev/sdc1 / dev/sdd1

[root@localhost ~] # pvscan / / check whether the partition operation is correct (same as below)

[root@localhost ~] # vgcreatetest_vg / dev/sdc1 / dev/sdd1

[root@localhost ~] # vgscan

[root@localhost] # lvcreate-L 16G-n test_vg_lv / dev/test_vg/

[root@localhost ~] # lvscan

[root@localhost~] # mkfs.ext3 / dev/test_vg/test_vg_lv / / format file type to use partition

[root@localhost ~] # mkdir/data/mbox / / create a mount point

[root@localhost ~] # mount/dev/test_vg/test_vg_lv / data/mbox/ Mount

[root@localhost] # df-h

File system capacity used available used% mount point

/ dev/sda2 48G 2.6G 43G 6% /

/ dev/sda3 48G 181m 45G 1% / data

/ dev/sda1 99M 12M 83M 13% / boot

Tmpfs 506m 0506m 0% / dev/shm

/ dev/sdb1 19G 173M 18G 1% / data/sdb1

/ dev/sdb2 19G 173M 18G 1% / data/sdb2

/ dev/sdb6 3.8G 4.0K 3.8G 1% / data/vfat

/ dev/sr0 3.5G 3.5G 0100% / media/RHEL_5.10 i386 DVD

/ dev/mapper/test_vg-test_vg_lv

16G 173m 14G 1% / data/mbox

[root@localhost ~] #

So far, the logical volume has been mounted successfully

The following extends the logical volume

[root@localhost ~] # fdisk / dev/sdc / / A partition of sdc disk is shown in the attached sdc diagram

[root@localhost~] # partprobe / dev/sdc5

[root@localhost ~] # pvcreate/dev/sdc5

[root@localhost ~] # pvscan

[root@localhost ~] # vgextendtest_vg / dev/sdc5

[root@localhost ~] # vgscan

[root@localhost ~] # vgdisplay

[root@localhost] # lvextend-L 30G/dev/test_vg/test_vg_lv

[root@localhost ~] # lvdisplay | grep "LV Size"

[root@localhost~] # resize2fs / dev/test_vg/test_vg_lv

[root@localhost] # df-h

File system capacity used available used% mount point

/ dev/sda2 48G 2.6G 43G 6% /

/ dev/sda3 48G 181m 45G 1% / data

/ dev/sda1 99M 12M 83M 13% / boot

Tmpfs 506m 0506m 0% / dev/shm

/ dev/sdb1 19G 173M 18G 1% / data/sdb1

/ dev/sdb2 19G 173M 18G 1% / data/sdb2

/ dev/sdb6 3.8G 4.0K 3.8G 1% / data/vfat

/ dev/sr0 3.5G 3.5G 0100% / media/RHEL_5.10 i386 DVD

/ dev/mapper/test_vg-test_vg_lv

30g 173m 28G 1% / data/mbox

Experimental summary: command colored fonts, the author has also thought hard, but also the whole command is particularly important, we must pay attention to!

Pure hand fight!

Attachment: http://down.51cto.com/data/2365579