lvm-story


  Source:
  https://foxhop.net/f3d70a5f-2f95-11f1-8b49-e86a64d24d78/lvm-story
  Snapshot: 2026-10-16T05:19:04Z
  Generator: Remarkbox d747782

  This is a thread snapshot. The living document lives at the source URI
  above — it may have been edited, extended, or replied-to since.

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once upon a time we randomly needed to add two new separate lvm logical
volumes to a server

1.  verify which devices we will work with

        sudo disk -l

    We need to create physical volumes on both of these buggers:

    -   /dev/sdb
    -   /dev/sdc

2.  create a physical volume on the 20G and 400G LUNs

        sudo lvm pvcreate /dev/sdb
        sudo lvm pvcreate /dev/sdc

3.  create a volume group on the 20G and 400G physical volumes

        sudo lvm vgcreate vg1 /dev/sdb
        sudo lvm vgcreate vg2 /dev/sdc

4.  create a logical volume on the new volume groups

        sudo lvm lvcreate vg1 -l 100%VG --name app
        sudo lvm lvcreate vg2 -l 100%VG --name data

5.  format each logical volume with ext4 filesystem

        sudo mkfs --type=ext4 /dev/mapper/vg1-app
        sudo mkfs --type=ext4 /dev/mapper/vg2-data

6.  create mount points

        sudo mkdir /app
        sudo mkdir /data

7.  configure mount points in /etc/fstab

        /dev/mapper/vg1-app /app               ext4    errors=remount-ro 0       1
        /dev/mapper/vg2-data /data             ext4    errors=remount-ro 0       1

8.  verify fstab

        sudo mount -a

9.  verify new filesystems

        df -hal

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Source:
https://foxhop.net/f3d70a5f-2f95-11f1-8b49-e86a64d24d78/lvm-story
Snapshot: 2026-10-16T05:19:04Z
Generator: Remarkbox d747782