diff --git a/pages/tools.raid.md b/pages/tools.raid.md
index c53b9af..aa2fba9 100644
--- a/pages/tools.raid.md
+++ b/pages/tools.raid.md
@@ -18,4 +18,7 @@
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 >We recommend RAID 4 and RAID 5 volumes for video editing, animation studios, digital photography, prepress and graphic arts. They are a great solution where you need the maximum amount of storage space, the highest performance, and protection against disk failure. With RAID 4 and RAID 5, the volume will keep working even after a disk gets an error or fails completely.
-> - https://www.softraid.com/raid/raid_levels/
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+> - https://www.softraid.com/raid/raid_levels/
+
+-----
+snapraid vs. zfs
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