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Add weekly and monthly systemd timers for trimming 

On machines using systemd, trim timers can be enabled on a per-pool
basis. Weekly and monthly timer units are provided. Timers can be
enabled as follows:

systemctl enable zfs-trim-weekly@rpool.timer --now
systemctl enable zfs-trim-monthly@datapool.timer --now

Each timer will pull in zfs-trim@${poolname}.service, which is not
schedule-specific.

The manpage zpool-trim has been updated accordingly.

Reviewed-by: Brian Behlendorf <behlendorf1@llnl.gov>
Signed-off-by: Julian Brunner <julian.brunner@gmail.com>
Closes #13544
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Julian Brunner 2022-06-11 03:22:14 +02:00 committed by GitHub
parent 87b46d63b2
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3
etc/Makefile.am
View File

@ -59,6 +59,9 @@ systemdunit_DATA = \
%D%/systemd/system/zfs-scrub-monthly@.timer \
%D%/systemd/system/zfs-scrub-weekly@.timer \
%D%/systemd/system/zfs-scrub@.service \
%D%/systemd/system/zfs-trim-monthly@.timer \
%D%/systemd/system/zfs-trim-weekly@.timer \
%D%/systemd/system/zfs-trim@.service \
%D%/systemd/system/zfs-share.service \
%D%/systemd/system/zfs-volume-wait.service \
%D%/systemd/system/zfs-volumes.target \

12
etc/systemd/system/zfs-trim-monthly@.timer.in Normal file
View File

@ -0,0 +1,12 @@
[Unit]
Description=Monthly zpool trim timer for %i
Documentation=man:zpool-trim(8)
[Timer]
OnCalendar=monthly
Persistent=true
RandomizedDelaySec=1h
Unit=zfs-trim@%i.service
[Install]
WantedBy=timers.target

12
etc/systemd/system/zfs-trim-weekly@.timer.in Normal file
View File

@ -0,0 +1,12 @@
[Unit]
Description=Weekly zpool trim timer for %i
Documentation=man:zpool-trim(8)
[Timer]
OnCalendar=weekly
Persistent=true
RandomizedDelaySec=1h
Unit=zfs-trim@%i.service
[Install]
WantedBy=timers.target

15
etc/systemd/system/zfs-trim@.service.in Normal file
View File

@ -0,0 +1,15 @@
[Unit]
Description=zpool trim on %i
Documentation=man:zpool-trim(8)
Requires=zfs.target
After=zfs.target
ConditionACPower=true
ConditionPathIsDirectory=/sys/module/zfs
[Service]
EnvironmentFile=-@initconfdir@/zfs
ExecStart=/bin/sh -c '\
if @sbindir@/zpool status %i | grep -q "(trimming)"; then\
exec @sbindir@/zpool wait -t trim %i;\
else exec @sbindir@/zpool trim -w %i; fi'
ExecStop=-/bin/sh -c '@sbindir@/zpool trim -s %i 2>/dev/null || true'

21
man/man8/zpool-trim.8
View File

@ -84,8 +84,29 @@ with no flags on the relevant target devices.
.It Fl w , -wait
Wait until the devices are done being trimmed before returning.
.El
.Sh PERIODIC TRIM
On machines using systemd, trim timers can be enabled on a per-pool basis.
.Nm weekly
and
.Nm monthly
timer units are provided.
.Bl -tag -width Ds
.It Xo
.Xc
.Nm systemctl
.Cm enable
.Cm zfs-trim-\fIweekly\fB@\fIrpool\fB.timer
.Cm --now
.It Xo
.Xc
.Nm systemctl
.Cm enable
.Cm zfs-trim-\fImonthly\fB@\fIotherpool\fB.timer
.Cm --now
.El
.
.Sh SEE ALSO
.Xr systemd.timer 5 ,
.Xr zpoolprops 7 ,
.Xr zpool-initialize 8 ,
.Xr zpool-wait 8