feat: add smart alerting and noatime to disks

hosts/nas/hardware-configuration.nix

@@ -16,6 +16,14 @@
   boot.kernelModules = [ "kvm-intel" ];
   boot.extraModulePackages = [ ];
 
+  # Power management kernel parameters
+  boot.kernelParams = [
+    "intel_pstate=passive"    # Better with powersave governor
+    "i915.enable_rc6=1"       # GPU deep sleep states
+    "i915.enable_dc=2"        # Display C-states (deepest)
+    "i915.enable_fbc=1"       # Frame buffer compression
+  ];
+
   # RAID 1 array for data storage
   boot.swraid = {
     enable = true;
@@ -78,11 +86,13 @@
   fileSystems."/var/lib/downloads" = {
     device = "/dev/vg-data/lv-downloads";
     fsType = "xfs";
+    options = [ "noatime" ];
   };
 
   fileSystems."/var/lib/multimedia" = {
     device = "/dev/vg-data/lv-multimedia";
     fsType = "xfs";
+    options = [ "noatime" ];
   };
 
   # DHCP networking