PostgreSQL High Availability Cookbook - Second Edition

How to do it...

For the purposes of this recipe, we will assume that the /dev/sdb device has been dedicated to PostgreSQL use. Follow these steps as the root user on two servers to create the first LVM layer:

1. Create and verify a single LVM partition on the device with these commands:

        parted /dev/sdb mklabel gpt
        parted /dev/sdb mkpart primary 1 100%
        parted /dev/sdb set 1 lvm on
        parted /dev/sdb print

2. Register /dev/sdb as an LVM physical device with this command:

        pvcreate /dev/sdb1

3. Create a single volume group to contain /dev/sdb1 with this command:

        vgcreate VG_DRBD /dev/sdb1

4. Create a single logical volume as 100% of the outer volume group with this command:

        lvcreate -n LV_DATA -l 100%VG VG_DRBD

5. Verify that the new volume exists ...