Centos and centos

Centos and centos

Find the new disk/dev/sdb

[Root @ localhost ~] # Fdisk-l

Disk/dev/sdb: 375.8 GB, 375809638400 bytes, 734003200 sectors
Units = sector of 1*512 = 512 bytes
Sector size (logical/physical): 512 bytes/512 bytes
I/O size (minimum/optimum): 512 bytes/512 bytes

Create a pv (physical volume) [root @ localhost ~] # Pvcreate/dev/sdbPhysical volume "/dev/sdb" successfully created

Resize vg (volume group)

[Root @ localhost ~] # Vgextend centos/dev/sdbVolume group "centos" successfully extended [root @ localhost ~] # VgsVG # PV # LV # SN Attr VSize VFree centos 2 3 0 wz -- n-399.50g 350.00g [root @ localhost ~] # Vgdisplay --- Volume group --- VG Name centos Alloc PE/Size 12673/49 .50 GiB Free PE/Size 89600/350 .00 GiB

Extended lv (logical volume)

[Root @ localhost ~] # Lvextend-L + 350G/dev/mapper/centos-home
Size of logical volume centos/home changed from 10.00 GiB (2560 extents) to 360.00 GiB (92160 extents ).
Logical volume home successfully resized

Redirect lv size

[Root @ localhost ~] # Xfs_growfs/dev/mapper/centos-home

View expansion Results

[Root @ localhost ~] # Df-h
File System capacity used available % mount point
/Dev/mapper/centos-root 36g 4.1G 32G 12%/
/Dev/mapper/centos-home 360G 37 M 360G 1%/home
/Dev/sda1 497 M 124 M 373 M 25%/boot

Redhat6:

[Root @ localhost ~] # Lvextend-L + 295G/dev/mapper/VolGroup-lv_home

[Root @ localhost ~] # Resize2fs/dev/mapper/VolGroup-lv_home

Refer:

LVM logical volume management tutorial:

Http://www.server110.com/linux/201403/7420.html 

Linux dynamically increases LV space:

Http://www.cnblogs.com/weaver1/archive/2011/12/30/2307451.html