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zfs: Force sync on shutdown (#16903)

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Svein Ove Aas 2016-07-19 08:57:13 +01:00 committed by Franz Pletz
parent e54ec2f907
commit 9a8e0d1c2e
1 changed files with 17 additions and 1 deletions
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18
nixos/modules/tasks/filesystems/zfs.nix
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@ -270,7 +270,23 @@ in
("$zpool_cmd" list "${pool}" >/dev/null) || "$zpool_cmd" import -d ${cfgZfs.devNodes} -N ${optionalString cfgZfs.forceImportAll "-f"} "${pool}"
'';
};
in listToAttrs (map createImportService dataPools) // {
# This forces a sync of any ZFS pools prior to poweroff, even if they're set
# to sync=disabled.
createSyncService = pool:
nameValuePair "zfs-sync-${pool}" {
description = "Sync ZFS pool \"${pool}\"";
wantedBy = [ "shutdown.target" ];
serviceConfig = {
Type = "oneshot";
RemainAfterExit = true;
};
script = ''
${zfsUserPkg}/sbin/zfs set nixos:shutdown-time="$(date)" "${pool}"
'';
};
in listToAttrs (map createImportService dataPools ++ map createSyncService allPools) // {
"zfs-mount" = { after = [ "systemd-modules-load.service" ]; };
"zfs-share" = { after = [ "systemd-modules-load.service" ]; };
"zed" = { after = [ "systemd-modules-load.service" ]; };