nixpkgs/modules/tasks/swraid.nix

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{ config, pkgs, ... }:
###### implementation
let
2007-01-23 20:09:06 +00:00
tempConf = "/var/run/mdadm.conf";
modprobe = config.system.sbin.modprobe;
inherit (pkgs) mdadm;
in
{
jobs.swraid =
{ startOn = "started udev or new-devices";
script =
''
# Load the necessary RAID personalities.
# !!! hm, doesn't the kernel load these automatically?
for mod in raid0 raid1 raid5; do
${modprobe}/sbin/modprobe $mod || true
done
# Scan /proc/partitions for RAID devices.
${mdadm}/sbin/mdadm --examine --brief --scan -c partitions > ${tempConf}
if ! test -s ${tempConf}; then exit 0; fi
# Activate each device found.
${mdadm}/sbin/mdadm --assemble -c ${tempConf} --scan
initctl emit -n new-devices
'';
task = true;
};
}