diff --git a/pages/tools.raid.md b/pages/tools.raid.md
index 2344b3e..b9fc63d 100644
--- a/pages/tools.raid.md
+++ b/pages/tools.raid.md
@@ -1,2 +1,9 @@
 - https://www.raidisnotabackup.com/
-- 
\ No newline at end of file
+
+
++ [bit old arcticle](https://fstoppers.com/originals/price-performance-and-reliability-which-hard-drive-should-you-buy-and-why-298942)
+
+### https://perfectmediaserver.com/hardware/hdd-purchase-methodology/
+
+### #chaosstream
+https://www.snapraid.it/
\ No newline at end of file