From bd92cf4a2bfb047131126391999b9f01b87baea3 Mon Sep 17 00:00:00 2001
From: s-prechtl <stefan@tague.at>
Date: Mon, 29 Sep 2025 11:14:07 +0200
Subject: [PATCH] feat: disk spindown eliminated

---
 hosts/saberofxebec/disk-spindown.nix | 14 ++++++++++++++
 1 file changed, 14 insertions(+)
 create mode 100644 hosts/saberofxebec/disk-spindown.nix

diff --git a/hosts/saberofxebec/disk-spindown.nix b/hosts/saberofxebec/disk-spindown.nix
new file mode 100644
index 0000000..b114638
--- /dev/null
+++ b/hosts/saberofxebec/disk-spindown.nix
@@ -0,0 +1,14 @@
+{lib, pkgs, ...}: {
+# Disables spindown on all disks of /dev/sd* format. -S might be used later not sure if needed yet.
+services.udev.extraRules = 
+  let
+    mkRule = as: lib.concatStringsSep ", " as;
+    mkRules = rs: lib.concatStringsSep "\n" rs;
+  in mkRules ([( mkRule [
+    ''ACTION=="add|change"''
+    ''SUBSYSTEM=="block"''
+    ''KERNEL=="sd[a-z]"''
+    ''ATTR{queue/rotational}=="1"''
+    ''RUN+="${pkgs.hdparm}/bin/hdparm -B 254 /dev/%k"''
+  ])]);
+}