diff --git a/scciclient/irmc/scci.py b/scciclient/irmc/scci.py
index 5079f0f..23141fd 100644
--- a/scciclient/irmc/scci.py
+++ b/scciclient/irmc/scci.py
@@ -474,8 +474,8 @@ def get_essential_properties(report, prop_keys):
     v = {}
     v['memory_mb'] = int(report.find('./System/Memory/Installed').text)
     v['local_gb'] = sum(
-        [int(int(size.text) / 1000)
-         for size in report.findall('.//PhysicalDrive/PhysicalSize')])
+        [int(int(size.text) / 1024)
+         for size in report.findall('.//PhysicalDrive/ConfigurableSize')])
     v['cpus'] = sum([int(cpu.find('./CoreNumber').text)
                      for cpu in report.find('./System/Processor')
                      if cpu.find('./CoreNumber') is not None])
diff --git a/scciclient/tests/irmc/test_scci.py b/scciclient/tests/irmc/test_scci.py
index ae958c3..ff2d645 100644
--- a/scciclient/tests/irmc/test_scci.py
+++ b/scciclient/tests/irmc/test_scci.py
@@ -664,7 +664,7 @@ class SCCITestCase(testtools.TestCase):
         ESSENTIAL_PROPERTIES_KEYS = {
             'memory_mb', 'local_gb', 'cpus', 'cpu_arch'}
         expected = {'memory_mb': 8192,
-                    'local_gb': 190,
+                    'local_gb': 185,
                     'cpus': 16,
                     'cpu_arch': 'x86_64'}
 
@@ -677,7 +677,7 @@ class SCCITestCase(testtools.TestCase):
         ESSENTIAL_PROPERTIES_KEYS = {
             'memory_mb', 'local_gb', 'cpus', 'cpu_arch'}
         expected = {'memory_mb': 8192,
-                    'local_gb': 190,
+                    'local_gb': 185,
                     'cpus': 16,
                     'cpu_arch': 'x86_64'}