linux_wiki:extend_existing_logical_volumes

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linux_wiki:extend_existing_logical_volumes [2016/03/03 22:00]
billdozor [Extend a volume group] 		linux_wiki:extend_existing_logical_volumes [2019/05/25 23:50]
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-====== Extend Existing Logical Volumes ====== 
- 
-**General Information** 
- 
-Expanding existing logical volumes non-destructively.  
- 
----- 
- 
-===== Basic LVM Setup ===== 
- 
-**Create single partition on a new disk** 
-<code bash> 
-fdisk /dev/sdb 
-n (new partition) 
-(use defaults) 
-t (change type) 
-8e (Linux LVM) 
-w (write changes and quit) 
-</code> 
- 
-\\ 
-**Create physical volume** 
-<code bash> 
-pvcreate /dev/sdb1 
-pvdisplay 
-</code> 
- 
-\\ 
-**Create volume group** 
-<code bash> 
-vgcreate vglocal /dev/sdb1 
-vgdisplay 
-</code> 
- 
-\\ 
-**Create logical volume** 
-<code bash> 
-lvcreate -n lvstorage -L 20G vglocal 
-lvdisplay 
-</code> 
- 
-\\ 
-**Create XFS Filesystem** 
-<code bash> 
-mkfs -t xfs /dev/vglocal/lvstorage 
-</code> 
- 
-\\ 
-**Mount the volume** 
-<code bash> 
-mkdir -p /mnt/mystorage 
-mount /dev/vglocal/lvstorage /mnt/mystorage 
-</code> 
- 
----- 
- 
-===== Extend a volume group ===== 
- 
-**Create a partition on a new disk** 
-<code bash> 
-gdisk /dev/sdc 
-(same defaults + lvm type change as basic setup) 
-</code> 
- 
-\\ 
-**Create physical volume from created partition** 
-<code bash> 
-pvcreate /dev/sdc1 
-</code> 
- 
-\\ 
-**Extend the "vglocal" volume group and verify** 
-<code bash> 
-vgextend vglocal /dev/sdc1 
-pvs 
-</code> 
- 
----- 
- 
- 
- 
-==== Extend a logical volume ==== 
- 
-**Extend volume to be 30G in size(from 20G original)** 
-<code bash> 
-lvextend -L 30G --resizefs /dev/vglocal/lvstorage 
-OR 
-lvextend -L +10G --resizefs /dev/vglocal/lvstorage 
-</code> 
-  * df -h shows that filesystem still needs to be resized to fill the LV container 
- 
-\\ 
-**Resize the filesystem - if you did NOT use the "--resizefs" option above** 
-<code bash> 
-xfs_growfs /dev/vglocal/lvstorage 
-</code> 
-  * If EXT filesystem, use: resize2fs /dev/vglocal/lvstorage 
- 
----- 
  
  • linux_wiki/extend_existing_logical_volumes.txt
  • Last modified: 2019/05/25 23:50
  • (external edit)