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Add weekly and monthly systemd timers for trimming

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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
This commit is contained in:
Julian Brunner 2022-06-11 03:22:14 +02:00 committed by GitHub
parent 87b46d63b2
commit 482505fd42
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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-monthly@.timer \
%D%/systemd/system/zfs-scrub-weekly@.timer \ %D%/systemd/system/zfs-scrub-weekly@.timer \
%D%/systemd/system/zfs-scrub@.service \ %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-share.service \
%D%/systemd/system/zfs-volume-wait.service \ %D%/systemd/system/zfs-volume-wait.service \
%D%/systemd/system/zfs-volumes.target \ %D%/systemd/system/zfs-volumes.target \

12
etc/systemd/system/zfs-trim-monthly@.timer.in Normal file
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@ -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
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@ -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 .It Fl w , -wait
Wait until the devices are done being trimmed before returning. Wait until the devices are done being trimmed before returning.
.El .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 .Sh SEE ALSO
.Xr systemd.timer 5 ,
.Xr zpoolprops 7 , .Xr zpoolprops 7 ,
.Xr zpool-initialize 8 , .Xr zpool-initialize 8 ,
.Xr zpool-wait 8 .Xr zpool-wait 8