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Tuesday, 3 March 2020
STEP BY STEP PRACTICALS - LINUX - HOW TO EXTEND A LVM IN LINUX
Prerequisists:- Please refer to my earlier blog:- How to create a LVM in Linux
1) Add a disk on the server. In my example, I have added a 2 GB disk on the server.
2) After adding the hard drive on the server, I ran the below command:-
echo "- - -" > /sys/class/scsi_host/host0/scan
echo "- - -" > /sys/class/scsi_host/host1/scan
echo "- - -" > /sys/class/scsi_host/host2/scan
Then I was able to see the drive on the server:-
3) Now we will create the physical volume.
pvcreate /dev/sdd
4) We can check the status by running the below command:-
pvs
5) Now we will extend the volume group.
6) Now we will extend the logical volume.
lvextend -L +1.98GB volume1/logicalvolume1 /dev/sdd
7) The last step is to re-size the volume group.
resize2fs /dev/mapper/volume1-logicalvolume1
8) We can check the new size by running the command:-
df -h
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