diff --git a/scripts/wk/hw/diags.py b/scripts/wk/hw/diags.py
index 8958856a..47656bf3 100644
--- a/scripts/wk/hw/diags.py
+++ b/scripts/wk/hw/diags.py
@@ -1055,12 +1055,6 @@ def show_results(state) -> None:
     std.print_report(state.system.generate_cpu_ram_report())
     std.print_standard(' ')
 
-  # Drop Disk Utilization reports (only needed for OST)
-  for test_group in state.test_groups:
-    if test_group.name == 'Disk Utilization':
-      for test in test_group.test_objects:
-        test.report = []
-
   # Disk Tests
   disk_tests_enabled = [
     group.name for group in state.test_groups if 'Disk' in group.name
diff --git a/scripts/wk/hw/volumes.py b/scripts/wk/hw/volumes.py
index 6beefd60..707f1f15 100644
--- a/scripts/wk/hw/volumes.py
+++ b/scripts/wk/hw/volumes.py
@@ -2,116 +2,76 @@
 # vim: sts=2 sw=2 ts=2
 
 import logging
+import re
 
 from wk import os as wk_os
-from wk.cfg.hw import VOLUME_FAILURE_THRESHOLD, VOLUME_SIZE_THRESHOLD
-from wk.std import PLATFORM, GenericError, bytes_to_string
+from wk.cfg.hw import (
+  VOLUME_FAILURE_THRESHOLD,
+  VOLUME_WARNING_THRESHOLD,
+  VOLUME_SIZE_THRESHOLD,
+  )
+from wk.std import PLATFORM, bytes_to_string, color_string
 
 
 # STATIC VARIABLES
 LOG = logging.getLogger(__name__)
-DEV_INFO = '{dev}... {size}... {filesystem}'
-MOUNT_INFO = '... Mounted on {mountpoint}... ({used} used, {free} free) {msg}'
 
 
 # Functions
-def add_child_dev_line(test_obj, child) -> None:
-  """Add child device line to test report."""
-  dev_info = DEV_INFO.format(
-    dev=child['name'],
-    size=bytes_to_string(child['size']),
-    filesystem=child['fstype'],
-    )
-  vol_full = False
+def add_dev_line(test_obj, details) -> None:
+  """Add device line to test report."""
+  # TODO: Replace bytes_to_string with wk.hw.disk version ?
+  if details is test_obj.dev:
+    details = details.raw_details
+  filesystem = details['fstype']
+  report_line = re.sub(r"^/dev/", "  ", details['name'])
+  label = details['label']
+  if label:
+    label = f', "{color_string(label, "CYAN")}"'
+  report_line += f' ({filesystem}{label if label else ""})'
 
   # Bail early
-  if not child['mountpoint']:
-    test_obj.report.append(dev_info)
+  if not filesystem:
+    # Skip devices without a filesystem
+    return
+  if not details['mountpoint']:
+    # Under Linux the volume needs to be mounted to get used space
     return
 
   # Get sizes
   percent_used = -1
-  size = child['size']
-  try:
-    if PLATFORM == 'Darwin':
-      size = child['TotalSize']
-      free = child['FreeSpace']
-      used = size - free
-    elif PLATFORM == 'Linux':
-      free = int(child['fsavail'])
-      used = int(child['fsused'])
-    if free == 0:
-      raise GenericError('Most likely a false positive.')
-    percent_used = (used / size) * 100
-  except (GenericError, TypeError):
-    # Bail early
-    test_obj.report.append(f'{dev_info}... Mounted on {child["mountpoint"]}')
+  size = details['size']
+  if PLATFORM == 'Darwin':
+    size = details['TotalSize']
+    free = details['FreeSpace']
+    used = size - free
+  elif PLATFORM == 'Linux':
+    free = int(details['fsavail']) if details['fsavail'] else -1
+    used = int(details['fsused']) if details['fsused'] else -1
+  percent_used = (used / size) * 100
+
+  # Bail early
+  if used < 0:
+    # Only include "real" devices
     return
 
   # Check for failures
   if (percent_used >= VOLUME_FAILURE_THRESHOLD
-      and size >= VOLUME_SIZE_THRESHOLD  * 1024**3):
+      and size >= VOLUME_SIZE_THRESHOLD * 1024**3):
     test_obj.failed = True
-    vol_full = True
 
-  # Mount / Size info
-  mount_size_info = MOUNT_INFO.format(
-    mountpoint=child['mountpoint'],
-    used=bytes_to_string(used),
-    free=bytes_to_string(free),
-    msg=f'[{percent_used:0.0f}% full]' if vol_full else '',
-  )
+  # Build and color size_line if needed
+  color = None
+  if test_obj.failed:
+    color = 'RED'
+  elif percent_used >= VOLUME_WARNING_THRESHOLD:
+    color = 'YELLOW'
+  size_line = f'{bytes_to_string(size)}'
+  size_line += f' ({bytes_to_string(used)} used, {percent_used:0.0f}% full)'
+  size_line = color_string(size_line, color)
 
   # Done
-  test_obj.report.append(f'{dev_info}{mount_size_info}')
-
-
-def add_root_dev_line(test_obj) -> None:
-  """Add root device line to test report."""
-  dev = test_obj.dev
-  dev_info= DEV_INFO.format(
-    dev=dev.name,
-    size=bytes_to_string(dev.size),
-    filesystem=dev.filesystem,
-    )
-  vol_full = False
-
-  # Get sizes
-  percent_used = -1
-  size = dev.size
-  try:
-    if PLATFORM == 'Darwin':
-      size = dev.raw_details['TotalSize']
-      free = dev.raw_details['FreeSpace']
-      used = size - free
-    elif PLATFORM == 'Linux':
-      free = int(dev.raw_details['fsavail'])
-      used = int(dev.raw_details['fsused'])
-    if free == 0:
-      raise GenericError('Most likely a false positive.')
-    percent_used = (used / size) * 100
-  except (GenericError, TypeError):
-    # Bail early
-    test_obj.report.append(
-      f'{dev_info}... Mounted on {dev.raw_details["mountpoint"]}',
-      )
-    return
-
-  # Check for failures
-  if percent_used >= VOLUME_FAILURE_THRESHOLD:
-    test_obj.failed = True
-    vol_full = True
-
-  # Mount / Size info
-  mount_size_info = MOUNT_INFO.format(
-    mountpoint=dev.raw_details['mountpoint'],
-    used=bytes_to_string(used),
-    free=bytes_to_string(free),
-    msg=f'[{percent_used:0.0f}% full]' if vol_full else '',
-    )
-
-  # Done
-  test_obj.report.append(f'{dev_info}{mount_size_info}')
+  test_obj.report.append(f'{report_line} {size_line}')
 
 
 def check_volume_utilization(test_obj) -> None:
@@ -120,14 +80,12 @@ def check_volume_utilization(test_obj) -> None:
 
   # Mount all volumes (read only if possible)
   mount_all_volumes(test_obj.dev)
-
-  # Add root dev to report
-  add_root_dev_line(test_obj)
-
-  # Add children
   dev.update_details(skip_children=False)
-  for child in dev.children:
-    add_child_dev_line(test_obj, child)
+
+  # Build report
+  test_obj.report.append(color_string('Disk Utilization', 'BLUE'))
+  for _d in (dev, *dev.children):
+    add_dev_line(test_obj, _d)
 
   # Update test object
   if test_obj.failed: