Add extra disk in a VG and expand existing LV
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# df -Th / Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/vglocal00-root00 ext4 26G 23G 1.5G 95% / # cfdisk /dev/sdc Disk has been changed. # pvcreate /dev/sdc1 Physical volume "/dev/sdc1" successfully created # pvs PV VG Fmt Attr PSize PFree /dev/sda2 vglocal00 lvm2 a--u 29.75g 224.00m /dev/sdb1 vglocal01 lvm2 a--u 9.97g 64.00m /dev/sdc1 lvm2 ---- 10.00g 10.00g # vgextend vglocal00 /dev/sdc1 Volume group "vglocal00" successfully extended # pvdisplay /dev/sdc1 | grep Free Free PE 319 # lvextend --extents +319 -n /dev/vglocal00/root00 Size of logical volume vglocal00/root00 changed from 25.53 GiB (817 extents) to 35.50 GiB (1136 extents). Logical volume root00 successfully resized. # resize2fs /dev/vglocal00/root00 resize2fs 1.41.12 (17-May-2010) Filesystem at /dev/vglocal00/root00 is mounted on /; on-line resizing required old desc_blocks = 2, new_desc_blocks = 3 Performing an on-line resize of /dev/vglocal00/root00 to 9306112 (4k) blocks. The filesystem on /dev/vglocal00/root00 is now 9306112 blocks long. # df -Th / Filesystem Type Size Used Avail Use% Mounted on /dev/mapper/vglocal00-root00 ext4 35G 23G 11G 68% / |
For a most updated article, check this one: http://blog.tian.it/lvm-how-to/