Linux/LVM how to increase file system size by adding physical volume: Difference between revisions

Revision as of 00:26, 14 June 2016

1. Scan for devices that can be used as physical volumes

lvmdiskscan

2. Create physical volume

pvcreate /dev/sdd1

3. Display physical volume

pvdisplay

4. Display logical volume group

vgdisplay

5. Add a physical volume to a logical volume group

vgextend vg1 /dev/sdf1

6. Display all logical volumes

lvdisplay

7. Display a specific logical volum

lvdisplay -v /dev/myvg/homevol<pre>

8. Extend logical volume by a set amount (e.g. 1GB)
<pre>lvextend -L+1G /dev/myvg/homevol

9. Extend logical volume to a set amount (e.g. 12GB)

lvextend -L12G /dev/myvg/homevol

10. Extend logical volume to fill all free space on logical volume group

lvextend -l +100%FREE /dev/myvg/testlv

11. Resize the underlying ext4 file system to the maximum of the new logical volume. Get the device name from df command

resize2fs /dev/mapper/VolGroup-lv_root

@@ Line 29: / Line 29: @@
 <pre>lvextend -L+1G /dev/myvg/homevol</pre>
-# %item value=9% Extend logical volume to a set amount (e.g. 12GB)
+. Extend logical volume to a set amount (e.g. 12GB)
-%commandbox% [@lvextend -L12G /dev/myvg/homevol@]
-# %item value=10% Extend logical volume to fill all free space on logical volume group
+<pre>lvextend -L12G /dev/myvg/homevol</pre>
-%commandbox% [@lvextend -l +100%FREE /dev/myvg/testlv@]
-# %item value=11% Resize the underlying ext4 file system to the maximum of the new logical volume. Get the device name from df command
+. Extend logical volume to fill all free space on logical volume group
-%commandbox% [@resize2fs /dev/mapper/VolGroup-lv_root@]
+<pre>lvextend -l +100%FREE /dev/myvg/testlv</pre>
+. Resize the underlying ext4 file system to the maximum of the new logical volume. Get the device name from df command
+<pre>resize2fs /dev/mapper/VolGroup-lv_root</pre>