Difference between revisions of "Adding and extending disks/volumes in LVM"
From Tech-Wiki
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# pvscan | # pvscan | ||
| − | Get the current available size using: | + | Get the current available size and logical volume name using: |
| − | + | ||
# vgdisplay | # vgdisplay | ||
| + | # lvdisplay | ||
Increase the size of this logical volume using: | Increase the size of this logical volume using: | ||
Revision as of 16:59, 15 August 2017
In order to use LVM, the partition must be type 8e instead of 83 when created by fdisk.
Create new PV (Physical Volume) using following command:
# pvcreate /dev/sdb1
Verify the volume:
# pvs # vgdisplay
Extend the volume group in a new disk:
# vgextend vg_root /dev/sdb1
This can be used to span this volume across a second disk
Check the new size:
# vgs # pvscan
Get the current available size and logical volume name using:
# vgdisplay # lvdisplay
Increase the size of this logical volume using: (if the volume has already grown using all the space in the new disk, this is not required)
# lvextend -L +100G /dev/vg_root/vol1
In addition, it's required to increase the file system in this logical volume as well:
# resize2fs /dev/vg_root/vol1
Get the current available again size using:
# lvdisplay # vgdisplay