From ab2e77ea829c20eeb4f451b751b5ddd85e1307c6 Mon Sep 17 00:00:00 2001
From: Sarah Brofeldt <sarah@qtr.dk>
Date: Tue, 9 Aug 2022 07:06:09 +0200
Subject: [PATCH] nixos/zfs: scrub synchronously

This prevents spurious systemd failures if the timer unit starts a new
scrub before a long-running one has finished.
---
 nixos/modules/tasks/filesystems/zfs.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/nixos/modules/tasks/filesystems/zfs.nix b/nixos/modules/tasks/filesystems/zfs.nix
index 795879c6764..8983cd132c5 100644
--- a/nixos/modules/tasks/filesystems/zfs.nix
+++ b/nixos/modules/tasks/filesystems/zfs.nix
@@ -765,10 +765,10 @@ in
         description = "ZFS pools scrubbing";
         after = [ "zfs-import.target" ];
         serviceConfig = {
-          Type = "oneshot";
+          Type = "simple";
         };
         script = ''
-          ${cfgZfs.package}/bin/zpool scrub ${
+          ${cfgZfs.package}/bin/zpool scrub -w ${
             if cfgScrub.pools != [] then
               (concatStringsSep " " cfgScrub.pools)
             else