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hdparm and hd-idle

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This commit is contained in:
Daniel Langbein 2023-11-23 20:11:28 +01:00
parent 916cabdd7a
commit 635d9f59b8
Signed by: langfingaz
GPG Key ID: 6C47C753F0823002
5 changed files with 64 additions and 10 deletions
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2
NixOS.md
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@ -236,6 +236,8 @@ nix-eval '{ a=false; }.a or true'
#=> false
nix-eval '{ a=1; }?a'
#=> true
nix-eval 'with lib.strings; concatMapStrings (x: " -a " + x + " -i 600") ["sda" "sdc"]'
#=> " -a sda -i 600 -a sdc -i 600"
```
## Escape strings

11
hosts/yodaHedgehog/configuration.nix
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@ -22,7 +22,8 @@
../../modules/btrbk
./btrbk-config.nix
../../modules/de-p1st-monitor.nix
../../modules/spin-down-hdd.nix
../../modules/spin-down/hdparm.nix
../../modules/spin-down/hd-idle.nix
../../modules/btrfs-scrub.nix
../../modules/btrfs-mount-options.nix
@ -32,6 +33,14 @@
boot.initrd.luks.devices."crypted".allowDiscards = true;
yoda.btrfsFileSystems = ["/" "/mnt/backup"];
#yoda.btrfsMounts = yoda.btrfsFileSystems;
yoda.spin-down.hdparm = [
# 6tb1
"ata-WDC_WD60EFAX-68SHWN0_WD-WX31D29924PZ"
];
yoda.spin-down.hd-idle = [
# 6tb2; not supported by hdparm / does not support setting idle timer
"ata-ST6000DM003-2CY186_ZR11WA9K"
];
boot.kernelParams = [];
boot.kernelPackages = pkgs.linuxPackages;

6
hosts/yodaNas/configuration.nix
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@ -26,7 +26,8 @@
./btrbk-config.nix
../../modules/netcup-dns.nix
../../modules/de-p1st-monitor.nix
../../modules/spin-down-hdd.nix
../../modules/spin-down/hdparm.nix
../../modules/spin-down/hd-idle.nix
../../modules/btrfs-scrub.nix
../../modules/btrfs-mount-options.nix
@ -36,7 +37,7 @@
boot.initrd.luks.devices."luks-3d974bd0-f373-469b-8e9c-2d5516e9f0f5".allowDiscards = true;
yoda.btrfsFileSystems = ["/" "/mnt/data" "/mnt/backup"];
#yoda.btrfsMounts = yoda.btrfsFileSystems;
yoda.spin-down-hdd = [
yoda.spin-down.hdparm = [
# 4tb1
"ata-WDC_WD40EFRX-68N32N0_WD-WCC7K0CPF0N1"
# 3tb1
@ -44,6 +45,7 @@
# 3tb2
"ata-WDC_WD30EFRX-68EUZN0_WD-WMC4N0564095"
];
yoda.spin-down.hd-idle = [];
boot.kernelParams = [
# Microarchitectural Data Sampling (MDS), see https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/mds.html#mitigation-control-on-the-kernel-command-line

33
modules/spin-down/hd-idle.nix Normal file
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@ -0,0 +1,33 @@
{ lib, config, options, pkgs, modulesPath, ... }:
with lib;
let
cfg = config.yoda.spin-down.hd-idle;
in
{
options = {
yoda.spin-down.hd-idle = mkOption {
type = types.listOf types.str;
default = [ ];
example = ["ata-ST6000DM003-2CY186_ZR11WA9K"];
description = ''
List with IDs (/dev/disk/by-id/<ID>) of HDDs to spin down with hd-idle after 5 minutes.
Please try to use yoda.spin-down.hdparm first.
'';
};
};
config = mkIf (length cfg > 0) {
systemd.services."hd-idle" = {
description = "Spin down inactive HDDs";
wantedBy = [ "multi-user.target" ];
script =
let
args = strings.concatMapStrings (x: " -a disk/by-id/${x} -i 300") cfg;
in ''
set -eu -o pipefail
${pkgs.hd-idle}/bin/hd-idle ${args}
'';
};
};
}

22
modules/spin-down-hdd.nix → modules/spin-down/hdparm.nix
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@ -16,7 +16,7 @@
# Get power status:
# sudo hdparm -C /dev/disk/by-id/ata-WDC_WD40EFRX-68N32N0_WD-WCC7K0CPF0N1
# #=> drive state is: active/idle
#
# Spin down after 2 minutes (120s/5s = 24).
# TODO: Western Digital (WD) Red/Green drives don't work properly. For low `-S` values, they spin down after **10** minutes. And for high values they don't spin down at all.
# - https://superuser.com/questions/1746074/spin-down-not-working-on-wd-red
@ -47,26 +47,34 @@
# See also: Systemd service to spin down after boot. https://wiki.archlinux.org/title/hdparm#Putting_a_drive_to_sleep_directly_after_boot
# TODO: For external (USB-)disks, use `hd-idle`.
# If a (external) disk does not supprot setting a timer with hdparm, use `hd-idle` instead.
# https://www.reddit.com/r/NixOS/comments/751i5t/comment/do3f3l7/
# # Options:
# # -a <disk>: Select disk for subsequent parameters.
# # -a <disk path without /dev>: Select disk for subsequent parameters.
# # -i 120: Spin down after 2 minutes (120 seconds) of inactivity.
# ExecStart = "${pkgs.hd-idle}/bin/hd-idle -a /dev/disk/by-id/XXX-XXX-XXX -i 120";
# ExecStart = "${pkgs.hd-idle}/bin/hd-idle -a disk/by-id/XXX-XXX-XXX -i 120";
# Example usage:
# sudo smartctl -i -n standby /dev/disk/by-id/ata-WDC_WD60EFAX-68SHWN0_WD-WX31D29924PZ | grep 'Power mode'
# #=> Power mode is: ACTIVE or IDLE
# sudo hd-idle -a disk/by-id/ata-WDC_WD60EFAX-68SHWN0_WD-WX31D29924PZ -i 120
{ lib, config, options, pkgs, modulesPath, ... }:
with lib;
let
cfg = config.yoda.spin-down-hdd;
cfg = config.yoda.spin-down.hdparm;
in
{
options = {
yoda.spin-down-hdd = mkOption {
yoda.spin-down.hdparm = mkOption {
type = types.listOf types.str;
default = [ ];
example = ["ata-WDC_WD40EFRX-68N32N0_WD-WCC7K0CPF0N1"];
description = ''
List with IDs (/dev/disk/by-id/<ID>) of HDDs to spin down after 10 minutes.
List with IDs (/dev/disk/by-id/<ID>) of HDDs to spin down with hdparm after 2-10 minutes.
Not all HDDs (e.g. Seagate Barracuda ST600DM003) and many external disk enclosures don't support setting the idle timer.
In that case, please use yoda.spin-down.hd-idle for those disks instead.
'';
};
};