Difference between revisions of "LVM"
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Latest revision as of 12:31, 24 November 2023
Scratchpad
lsblk pvcreate /dev/sdc pvdisplay vgcreate vg_prod2 /dev/sdc vgdisplay pvdisplay lvcreate --name lv_var --size 100G vg_prod2 vgdisplay lvdisplay pvs && vgs && lvs mkfs.ext4 /dev/vg_prod2/lv_opt ls -la /mnt/ mkdir /mnt/lv_temp /sbin/service wso2gw stop /sbin/service wso2is stop cd /opt/gitlab-runner && docker-compose down mount -t ext4 /dev/mapper/vg_prod2-lv_opt /mnt/lv_temp/ rsync -aX /opt/ /mnt/lv_temp/ cd /opt && ls -lZR > /tmp/opt_orig cd /mnt/lv_temp && ls -lZR > /tmp/opt_new vimdiff /tmp/opt_* lsof +D /opt /sbin/service wso2is stop /sbin/service wso2gw stop /sbin/service omsagent-8ede5cb2-6c8c-44d3-9490-90d485c09176 stop /sbin/service auditd stop /sbin/service omid stop mkfs.ext4 /dev/vg_prod2/lv_tmp lsof +D /tmp du -hd 1 /tmp/ rm -rf /tmp/* chmod 3777 /tmp mount | awk '$3 == "/tmp"' mkfs.ext4 /dev/vg_prod2/lv_usr mount -t ext4 /dev/mapper/vg_prod2-lv_usr /mnt/lv_temp/ rsync -aHX /usr/ /mnt/lv_temp/ cd /usr && ls -lZR > /tmp/usr_orig cd /mnt/lv_temp && ls -lZR > /tmp/usr_new vimdiff /tmp/usr_* vim /etc/fstab mount -a
Extend
lsblk # show block devices pvdisplay # show LVM physical volumes vgdisplay # show LVM volume groups # start with /opt lvextend --size 20G /dev/mapper/rootvg-optlv # extend LVM logical volume lvdisplay /dev/mapper/rootvg-optlv # verify the extension resize2fs /dev/mapper/rootvg-optlv # resize the FS located at the partition df -h |grep optlv # verify everything went well # continue with /var lvextend --size 50G /dev/mapper/rootvg-varlv lvdisplay /dev/mapper/rootvg-varlv resize2fs /dev/mapper/rootvg-varlv df -h |grep varlv # verify the final outcome df -h |grep mapper vgdisplay # still > 90G left
TODO
Make some order in these!