diff --git a/pages/tools.raid.md b/pages/tools.raid.md
index a7b24d7..fb7e1a4 100644
--- a/pages/tools.raid.md
+++ b/pages/tools.raid.md
@@ -25,4 +25,8 @@ snapraid vs. zfs
 
 ---
 ## zfs
-https://itsfoss.com/what-is-zfs/
\ No newline at end of file
+https://itsfoss.com/what-is-zfs/
+
+-----
+
+https://en.thecead.com/pages/4756-disk-speed---test-seagate-ironwolf-8tb
\ No newline at end of file