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LVM - Revision history
2026-05-14T11:43:24Z
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Garak: Add initial content
2023-11-24T12:31:57Z
<p>Add initial content</p>
<p><b>New page</b></p><div>== Scratchpad ==<br />
<pre><br />
lsblk<br />
pvcreate /dev/sdc<br />
pvdisplay<br />
vgcreate vg_prod2 /dev/sdc<br />
vgdisplay<br />
pvdisplay<br />
lvcreate --name lv_var --size 100G vg_prod2<br />
vgdisplay<br />
lvdisplay<br />
pvs && vgs && lvs<br />
<br />
mkfs.ext4 /dev/vg_prod2/lv_opt<br />
ls -la /mnt/<br />
mkdir /mnt/lv_temp<br />
<br />
/sbin/service wso2gw stop<br />
/sbin/service wso2is stop<br />
cd /opt/gitlab-runner && docker-compose down<br />
<br />
mount -t ext4 /dev/mapper/vg_prod2-lv_opt /mnt/lv_temp/<br />
rsync -aX /opt/ /mnt/lv_temp/<br />
cd /opt && ls -lZR > /tmp/opt_orig<br />
cd /mnt/lv_temp && ls -lZR > /tmp/opt_new<br />
vimdiff /tmp/opt_*<br />
<br />
lsof +D /opt<br />
<br />
/sbin/service wso2is stop<br />
/sbin/service wso2gw stop<br />
/sbin/service omsagent-8ede5cb2-6c8c-44d3-9490-90d485c09176 stop<br />
/sbin/service auditd stop<br />
/sbin/service omid stop<br />
<br />
mkfs.ext4 /dev/vg_prod2/lv_tmp<br />
lsof +D /tmp<br />
du -hd 1 /tmp/<br />
rm -rf /tmp/*<br />
chmod 3777 /tmp<br />
mount | awk '$3 == "/tmp"'<br />
<br />
mkfs.ext4 /dev/vg_prod2/lv_usr<br />
mount -t ext4 /dev/mapper/vg_prod2-lv_usr /mnt/lv_temp/<br />
rsync -aHX /usr/ /mnt/lv_temp/<br />
<br />
cd /usr && ls -lZR > /tmp/usr_orig<br />
cd /mnt/lv_temp && ls -lZR > /tmp/usr_new<br />
vimdiff /tmp/usr_*<br />
<br />
vim /etc/fstab<br />
mount -a<br />
<br />
</pre><br />
== Extend ==<br />
<pre><br />
lsblk # show block devices<br />
pvdisplay # show LVM physical volumes<br />
vgdisplay # show LVM volume groups<br />
<br />
# start with /opt<br />
<br />
lvextend --size 20G /dev/mapper/rootvg-optlv # extend LVM logical volume<br />
<br />
lvdisplay /dev/mapper/rootvg-optlv # verify the extension<br />
resize2fs /dev/mapper/rootvg-optlv # resize the FS located at the partition<br />
<br />
df -h |grep optlv # verify everything went well<br />
<br />
# continue with /var<br />
<br />
lvextend --size 50G /dev/mapper/rootvg-varlv<br />
<br />
lvdisplay /dev/mapper/rootvg-varlv<br />
resize2fs /dev/mapper/rootvg-varlv<br />
<br />
df -h |grep varlv<br />
<br />
# verify the final outcome<br />
df -h |grep mapper<br />
<br />
vgdisplay<br />
<br />
# still > 90G left<br />
</pre><br />
== TODO ==<br />
<br />
Make some order in these!</div>
Garak