diff --git a/manila_tempest_tests/config.py b/manila_tempest_tests/config.py
index 0cd07d3..4d36944 100644
--- a/manila_tempest_tests/config.py
+++ b/manila_tempest_tests/config.py
@@ -336,4 +336,17 @@
                      "attempt to create an IPv6 subnet on the project network "
                      "they create for ping and SSH to the client test VM "
                      "where data path testing is performed."),
+    cfg.StrOpt("dd_input_file",
+               default="/dev/zero",
+               help="The input file (if) in the dd command specifies the "
+                    "source of data that dd will read and process, which can "
+                    "be a device, a regular file, or even standard input "
+                    "(stdin). dd copies, transforms, or performs actions on "
+                    "this data based on provided options and then writes it "
+                    "to an output file or device (of). When using /dev/zero "
+                    "in storage systems with default compression, although "
+                    "it generates highly compressible null bytes (zeros), "
+                    "writing data from /dev/zero might not yield significant "
+                    "space savings as these systems are already optimized for "
+                    "efficient compression."),
 ]
diff --git a/manila_tempest_tests/tests/scenario/manager_share.py b/manila_tempest_tests/tests/scenario/manager_share.py
index 6d6efc0..3e06323 100644
--- a/manila_tempest_tests/tests/scenario/manager_share.py
+++ b/manila_tempest_tests/tests/scenario/manager_share.py
@@ -229,8 +229,7 @@
     def write_data_to_mounted_share_using_dd(self, remote_client,
                                              output_file,
                                              block_size,
-                                             block_count,
-                                             input_file='/dev/zero'):
+                                             block_count):
         """Writes data to mounted share using dd command
 
         Example Usage for writing 512Mb to a file on /mnt/
@@ -243,13 +242,12 @@
         :param block_size: The size of an individual block in bytes
         :param block_count: The number of blocks to write
         :param output_file: Path to the file to be written
-        :param input_file: Path to the file to read from
         """
         block_count = int(block_count)
         remote_client.exec_command(
-            "sudo sh -c \"dd bs={} count={} if={} of={} conv=fsync"
-            " iflag=fullblock\""
-            .format(block_size, block_count, input_file, output_file))
+            "sudo sh -c \"dd bs={} count={} if={} of={} iflag=fullblock\""
+            .format(block_size, block_count, CONF.share.dd_input_file,
+                    output_file))
 
     def read_data_from_mounted_share(self,
                                      remote_client,
diff --git a/manila_tempest_tests/tests/scenario/test_share_extend.py b/manila_tempest_tests/tests/scenario/test_share_extend.py
index 595ddd4..450d2d4 100644
--- a/manila_tempest_tests/tests/scenario/test_share_extend.py
+++ b/manila_tempest_tests/tests/scenario/test_share_extend.py
@@ -76,8 +76,7 @@
                   .format(three_quarter_blocks))
         self.write_data_to_mounted_share_using_dd(remote_client,
                                                   '/mnt/t1', '64M',
-                                                  three_quarter_blocks,
-                                                  '/dev/urandom')
+                                                  three_quarter_blocks)
         ls_result = remote_client.exec_command("sudo ls -lAh /mnt/")
         LOG.debug(ls_result)
 
@@ -86,8 +85,7 @@
         self.assertRaises(
             exceptions.SSHExecCommandFailed,
             self.write_data_to_mounted_share_using_dd,
-            remote_client, '/mnt/t2', '64M', over_one_quarter_blocks,
-            '/dev/urandom')
+            remote_client, '/mnt/t2', '64M', over_one_quarter_blocks)
         ls_result = remote_client.exec_command("sudo ls -lAh /mnt/")
         LOG.debug(ls_result)
 
@@ -129,8 +127,7 @@
             self.write_data_to_mounted_share_using_dd(remote_client,
                                                       output_file,
                                                       block_size,
-                                                      block_count,
-                                                      '/dev/urandom')
+                                                      block_count)
         except exceptions.SSHExecCommandFailed as e:
             if 'stale file handle' in str(e).lower():
                 LOG.warning("Client was disconnected during extend process")
@@ -139,8 +136,7 @@
                 self.write_data_to_mounted_share_using_dd(remote_client,
                                                           output_file,
                                                           block_size,
-                                                          block_count,
-                                                          '/dev/urandom')
+                                                          block_count)
             else:
                 raise
 
diff --git a/manila_tempest_tests/tests/scenario/test_share_manage_unmanage.py b/manila_tempest_tests/tests/scenario/test_share_manage_unmanage.py
index ef2a6af..bbf5ba6 100644
--- a/manila_tempest_tests/tests/scenario/test_share_manage_unmanage.py
+++ b/manila_tempest_tests/tests/scenario/test_share_manage_unmanage.py
@@ -105,7 +105,7 @@
         LOG.debug('Step 6b - writing 640mb')
         self.write_data_to_mounted_share_using_dd(remote_client,
                                                   '/mnt/t1', 1024,
-                                                  2048, '/dev/zero')
+                                                  2048)
         ls_result = remote_client.exec_command("sudo ls -lA /mnt/")
         LOG.debug(ls_result)
 
diff --git a/manila_tempest_tests/tests/scenario/test_share_shrink.py b/manila_tempest_tests/tests/scenario/test_share_shrink.py
index a4e59e8..fab7e0a 100644
--- a/manila_tempest_tests/tests/scenario/test_share_shrink.py
+++ b/manila_tempest_tests/tests/scenario/test_share_shrink.py
@@ -79,7 +79,7 @@
         LOG.debug('Step 6 - writing {} * 64MB blocks'.format(blocks))
         self.write_data_to_mounted_share_using_dd(remote_client,
                                                   '/mnt/t1', '64M',
-                                                  blocks, '/dev/urandom')
+                                                  blocks)
         ls_result = remote_client.exec_command("sudo ls -lAh /mnt/")
         LOG.debug(ls_result)
 
@@ -120,7 +120,7 @@
         self.assertRaises(
             exceptions.SSHExecCommandFailed,
             self.write_data_to_mounted_share_using_dd,
-            remote_client, '/mnt/t1', '64M', blocks, '/dev/urandom')
+            remote_client, '/mnt/t1', '64M', blocks)
 
         LOG.debug('Step 12 - unmount')
         self.unmount_share(remote_client)