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36c3c1eae6
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5921272649
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5921272649 | ||
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a55b594483 |
@ -55,6 +55,13 @@
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services.openssh.enable = true;
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services.zfs.autoScrub.enable = true; # Snapshots & Details kommen später
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systemd.services.zfs-prune-snapshots = {
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description = "Remove ZFS snapshots older than policy";
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serviceConfig.ExecStart = "/run/current-system/sw/bin/zfs-prune-snapshots -r --keep=2w";
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startAt = "daily";
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};
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# Wir pinnen den Kernel, bis ZFS 2.3.x für 6.13 bereit ist
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boot.kernelPackages = pkgs.linuxPackages_6_12;
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@ -21,6 +21,7 @@
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./disko.nix # disko partitionierung
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./hardware/hardware-configuration.nix # generiertes hardware-configuration.nix
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./configuration.nix # deine eigentliche Config
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./modules/zfs.nix
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disko.nixosModules.disko
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nixos-hardware.nixosModules.common-pc-ssd
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];
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39
modules/zfs.nix
Normal file
39
modules/zfs.nix
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@ -0,0 +1,39 @@
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{ config, pkgs, lib, ... }:
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{
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#### 1. Pool-Eigenschaften (permanent) ##############################
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# wird von systemd-Units bei jedem Boot angewendet
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services.zfs = {
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trim.enable = true; # weekly zpool trim
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autoScrub = {
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enable = true; # weekly scrub
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interval = "Sun 04:00"; # optional ändern
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pools = [ "rpool" "tank" ];
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};
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autoSnapshot = {
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enable = true;
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frequent = 4; # alle 15 min, 4 Aufbewahrung
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hourly = 24;
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daily = 7;
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weekly = 4;
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monthly = 3;
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};
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};
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#### 2. ARC-Größe begrenzen (z. B. 8 GiB) ###########################
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# 8 * 1024^3 = 8589934592
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boot.kernelParams = [ "zfs.zfs_arc_max=8589934592" ]; # ≈ 16 % von 48 GB RAM :contentReference[oaicite:0]{index=0}
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#### 3. Zusätzliche Module / Tools ##################################
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environment.systemPackages = with pkgs; [
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zfs # zpool, zfs, arc_summary
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zfs-prune-snapshots
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];
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#### 4. Optional: Sanoid statt OpenSolaris-Snapshots ################
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# services.sanoid.enable = true;
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# services.sanoid.datasets."tank/media" = {
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# hourly = 24; daily = 7; monthly = 3;
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# };
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}
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