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| author | David Teigland <teigland@redhat.com> | 2021-11-03 12:03:29 -0500 |
|---|---|---|
| committer | David Teigland <teigland@redhat.com> | 2021-11-04 11:08:38 -0500 |
| commit | d558b3ad7e6086480075b3bf750eba0ee66c78ec (patch) | |
| tree | 1185d7297ed58381889384e037e4f112b7fb5f49 /tools/command-lines.in | |
| parent | 594f6ca97024fa23dfa852b6cc9da272877e1ced (diff) | |
| download | lvm2-d558b3ad7e6086480075b3bf750eba0ee66c78ec.tar.gz | |
vgchange -aay: optimize device scan using pvs_online files
Port the old pvscan -aay scanning optimization to vgchange -aay.
The optimization uses pvs_online files created by pvscan --cache
to derive a list of devices to use when activating a VG. This
allows autoactivation of a VG to avoid scanning all devices, and
only scan the devices used by the VG itself. The optimization is
applied internally using the device hints interface.
The new option "--autoactivation event" is given to pvscan and
vgchange commands that are called by event activation. This
informs the command that it is being used for event activation,
so that it can apply checks and optimizations that are specific
to event activation. Those include:
- skipping the command if lvm.conf event_activation=0
- checking that a VG is complete before activating it
- using pvs_online files to limit device scanning
Diffstat (limited to 'tools/command-lines.in')
| -rw-r--r-- | tools/command-lines.in | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/tools/command-lines.in b/tools/command-lines.in index 10b23e75d..d4691c686 100644 --- a/tools/command-lines.in +++ b/tools/command-lines.in @@ -1642,14 +1642,15 @@ DESC: Record that a PV is online or offline. pvscan --cache_long --activate ay OO: --ignorelockingfailure, --reportformat ReportFmt, ---major Number, --minor Number, --noudevsync +--major Number, --minor Number, --noudevsync, --autoactivation String OP: PV|String ... IO: --background ID: pvscan_cache DESC: Record that a PV is online and autoactivate the VG if complete. pvscan --cache_long --listvg PV -OO: --ignorelockingfailure, --checkcomplete, --vgonline, --udevoutput +OO: --ignorelockingfailure, --checkcomplete, --vgonline, --udevoutput, +--autoactivation String ID: pvscan_cache DESC: Record that a PV is online and list the VG using the PV. @@ -1747,7 +1748,8 @@ DESC: Start or stop processing LV conversions. vgchange --activate Active OO: --activationmode ActivationMode, --ignoreactivationskip, --partial, --sysinit, ---readonly, --ignorelockingfailure, --monitor Bool, --poll Bool, OO_VGCHANGE +--readonly, --ignorelockingfailure, --monitor Bool, --poll Bool, +--autoactivation String, OO_VGCHANGE OP: VG|Tag|Select ... IO: --ignoreskippedcluster ID: vgchange_activate |