diff --git a/infrastructure_and_operations/rathouse.myco b/infrastructure_and_operations/rathouse.myco
index e480f51..725980d 100644
--- a/infrastructure_and_operations/rathouse.myco
+++ b/infrastructure_and_operations/rathouse.myco
@@ -2,3 +2,5 @@ rathouse is for capsulv2
-# SSD serial numbers
+# Disk Stuff
+
+### serial numbers
@@ -14,3 +16,20 @@ use `smartctl -x /dev/sdb | grep Serial` to print serial numbers.
-# mdadm recovery
+### raid setup
+
+#### setup
+
+```
+# raid setup for tank
+
+```
+# i left the chunk size default
+# also i chose near over far because
+# > mdadm cannot reshape arrays in far X layouts
+mdadm --create --verbose --level=10 --metadata=1.2 --raid-
+devices=2 --layout=n2 /dev/md/tank /dev/sda1 /dev/sdd1
+mkfs.ext4 /dev/md/tank
+mount /dev/md/tank /tank
+```
+
+#### recovery