Phase 6: Storage & LVM

# Block devices
lsblk

# Volume groups
sudo vgs

# Logical volumes
sudo lvs

# Physical volumes
sudo pvs

# Check free space in VG
sudo vgdisplay | grep -i free

# Extend /home LV by 2GB
sudo lvextend -L +2G /dev/mapper/rhel-home

# Grow the XFS filesystem (XFS can only grow, not shrink)
sudo xfs_growfs /home

# Verify
df -hT /home

# Initialize disks as PVs
sudo pvcreate /dev/vdb /dev/vdc

# Create new VG
sudo vgcreate vg_data /dev/vdb /dev/vdc

# Create LVs
sudo lvcreate -L 5G -n lv_projects vg_data
sudo lvcreate -L 5G -n lv_containers vg_data

# Create filesystems
sudo mkfs.xfs /dev/vg_data/lv_projects
sudo mkfs.xfs /dev/vg_data/lv_containers

# Create mount points
sudo mkdir -p /data/projects /data/containers

# Add to fstab (use LV path, not UUID for LVM)
echo '/dev/vg_data/lv_projects  /data/projects  xfs  defaults  0 0' | sudo tee -a /etc/fstab
echo '/dev/vg_data/lv_containers  /data/containers  xfs  defaults  0 0' | sudo tee -a /etc/fstab

# Mount all
sudo mount -a

# Verify
df -hT | grep data

# Check current swap
swapon --show

# Create additional swap LV (if needed)
sudo lvcreate -L 1G -n lv_swap2 rhel
sudo mkswap /dev/rhel/lv_swap2
sudo swapon /dev/rhel/lv_swap2

# Make persistent
echo '/dev/rhel/lv_swap2  none  swap  defaults  0 0' | sudo tee -a /etc/fstab

# Install Stratis
sudo dnf install -y stratisd stratis-cli
sudo systemctl enable --now stratisd

# Stratis requires unpartitioned block devices
# Use remaining space from data disks or add a new disk