Raphael Numbus
72 lines
1.8 KiB
Nix
72 lines
1.8 KiB
Nix
{ config, lib, ... }:
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let
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### --> SnapRAID disks research
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contentDiskMounts = lib.attrsets.attrNames (
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lib.attrsets.filterAttrs (name: value: lib.strings.hasPrefix "/mnt/content-" name) config.fileSystems
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);
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parityDiskMounts = lib.attrsets.attrNames (
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lib.attrsets.filterAttrs (name: value: lib.strings.hasPrefix "/mnt/parity-" name) config.fileSystems
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);
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snapraidDataDisks = lib.lists.foldl'
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(acc: path: acc // { "d${toString (acc.i + 1)}" = path; i = acc.i + 1; })
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{ i = 0; }
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contentDiskMounts;
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### SnapRAID disks research <--
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### --> Spindown disks
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hardDrives = [ ${DISK_ID_LIST[@]} ];
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### Spindown disks <--
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in
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### --> MergerFS setup
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{
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fileSystems."/mnt/data-storage" = {
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device = "mergerfs";
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fsType = "fuse";
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options = [
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"defaults"
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"allow_other"
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"use_ino"
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"cache.files=off"
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"moveonenospc=true"
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"category.create=mfs"
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"srcmounts=${lib.strings.concatStringsSep ":" contentDiskMounts}"
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];
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};
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### MergerFS setup <--
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### --> SnapRAID setup
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services.snapraid = {
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enable = true;
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contentFiles = map (disk: "${disk}/snapraid.content") contentDiskMounts;
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parityFiles = map (disk: "${disk}/snapraid.parity") parityDiskMounts;
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dataDisks = builtins.removeAttrs snapraidDataDisks [ "i" ];
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};
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### SnapRAID setup <--
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### --> Disk spindown
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systemd.services.hd-idle = {
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description = "External HD spin down daemon";
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wantedBy = [ "multi-user.target" ];
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serviceConfig = {
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Type = "simple";
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ExecStart =
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let
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idleTime = toString 1800;
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hardDriveParameter = lib.strings.concatMapStringsSep " " (x: "-a ${x} -i ${idleTime}") hardDrives;
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in
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"${pkgs.hd-idle}/bin/hd-idle -i 0 ${hardDriveParameter}";
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};
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};
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### Disk spindown <--
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} |