mirror of
git://sourceware.org/git/lvm2.git
synced 2024-12-21 13:34:40 +03:00
4b5d6de86b
The pvscan systemd service for autoactivation was mistakenly dropped along with the lvmetad related services. The activation generator program now looks at the new lvm.conf setting "event_activation" (default 1) to switch between event activation and direct activation. Previously, the old use_lvmetad setting was used to switch between event and direct activation.
50 lines
1.8 KiB
Plaintext
50 lines
1.8 KiB
Plaintext
.TH "LVM2-ACTIVATION-GENERATOR" "8" "LVM TOOLS #VERSION#" "Red Hat, Inc" "\""
|
|
.SH "NAME"
|
|
lvm2-activation-generator - generator for systemd units to activate LVM volumes on boot
|
|
.SH SYNOPSIS
|
|
.B #SYSTEMD_GENERATOR_DIR#/lvm2-activation-generator
|
|
.sp
|
|
.SH DESCRIPTION
|
|
|
|
The lvm2-activation-generator is called by \fBsystemd\fP(1) on boot to
|
|
generate systemd units at runtime to activate LVM Logical Volumes (LVs)
|
|
when global/event_activation=0 is set in \fBlvm.conf\fP(5). These units use
|
|
\fBvgchange -ay\fP to activate LVs.
|
|
|
|
If event_activation=1, the lvm2-activation-generator exits immediately without
|
|
generating any systemd units, and LVM fully relies on event-based
|
|
activation to activate LVs. In this case, event-generated \fBpvscan
|
|
--cache -aay\fP commands activate LVs.
|
|
|
|
These systemd units are generated by lvm2-activation-generator:
|
|
.sp
|
|
\fIlvm2-activation-early.service\fP
|
|
is run before systemd's special \fBcryptsetup.target\fP to activate
|
|
LVs that are not layered on top of encrypted devices.
|
|
|
|
\fIlvm2-activation.service\fP
|
|
is run after systemd's special \fBcryptsetup.target\fP to activate
|
|
LVs that are layered on top of encrypted devices.
|
|
|
|
\fIlvm2-activation-net.service\fP
|
|
is run after systemd's special \fBremote-fs-pre.target\fP to activate
|
|
LVs that are layered on attached remote devices.
|
|
|
|
Note that all the underlying LVM devices (Physical Volumes) need to be
|
|
present when the service is run. If the there are any devices that appear
|
|
to the system later, LVs using these devices need to be activated directly
|
|
by \fBlvchange\fP(8) or \fBvgchange\fP(8).
|
|
|
|
The lvm2-activation-generator implements the \fBGenerators Specification\fP
|
|
as referenced in \fBsystemd\fP(1).
|
|
.sp
|
|
.SH SEE ALSO
|
|
.BR lvm.conf (5)
|
|
.BR vgchange (8)
|
|
.BR lvchange (8)
|
|
.BR pvscan (8)
|
|
.BR udev (7)
|
|
.BR systemd (1)
|
|
.BR systemd.target (5)
|
|
.BR systemd.special (7)
|