diff --git a/tests/metrics/storage/README.md b/tests/metrics/storage/README.md
index b9d1cc68a4..305c7e227d 100644
--- a/tests/metrics/storage/README.md
+++ b/tests/metrics/storage/README.md
@@ -1,11 +1,27 @@
 # Kata Containers storage I/O tests
+
 The metrics tests in this directory are designed to be used to assess storage IO.
+
 ## `Blogbench` test
+
 The `blogbench` script is based on the `blogbench` program which is designed to emulate a busy blog server with a number of concurrent 
 threads performing a mixture of reads, writes and rewrites.
+
 ### Running the `blogbench` test
+
 The `blogbench` test can be run by hand, for example:
 ```
 $ cd metrics
 $ bash storage/blogbench.sh
 ```
+## `fio` test
+
+The `fio` test utilises the [fio tool](https://github.com/axboe/fio), configured
+to perform measurements upon a single test file.
+
+The test configuration used by the script can be modified by setting a number of
+environment variables to change or over-ride the test defaults.
+
+## DAX `virtio-fs` `fio` Kubernetes tests
+
+[Test](fio-k8s/README.md) to compare the use of DAX option in `virtio-fs`.