Bug 857010

Summary:	Add dm/lvm related services to default preset file
Product:	[Fedora] Fedora	Reporter:	Peter Rajnoha <prajnoha>
Component:	systemd	Assignee:	systemd-maint
Status:	CLOSED NOTABUG	QA Contact:	Fedora Extras Quality Assurance <extras-qa>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	18	CC:	johannbg, lnykryn, metherid, msekleta, notting, plautrba, systemd-maint, vpavlin
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-09-13 11:47:19 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	850196

Description Peter Rajnoha 2012-09-13 11:29:47 UTC

Please, if possible, add following in the 99-default.preset file:

  enable dm-event.socket
  enable lvm2-lvmetad.socket
  enable lvm2-monitor.service

dm-event.socket + lvm2-monitor.service is an essential part for monitoring the use of lvm2 snapshots and mirrors (the dm-event.socket also as a service for any other potential device-mapper subsystem that needs its devices to be monitored).

The lvm2-lvmetad.socket is essential to instantiate the lvmetad daemon that keeps track of metadata and PVs that appear/disappear on a system and to avoid further scans, making lvm2 to run more efficiently (also removing the dependency on udev-settle).

(Note: the dmeventd daemon (dm-event.socket) and the lvmetad daemon (lvm2-lvmetad.socket) are instantiated on-demand, on the first access.)

If I get it right, this should be OK with the Fedora policy https://fedoraproject.org/wiki/Starting_services_by_default (but correct me if I'm wrong).

Comment 1 Václav Pavlín 2012-09-13 11:45:10 UTC

Already added in http://lists.fedoraproject.org/pipermail/scm-commits/2012-September/861806.html

Comment 2 Peter Rajnoha 2012-09-13 11:47:19 UTC

Great! I guess this is going to be in F18 as well, right? ...closing the bug then.

Comment 3 Václav Pavlín 2012-09-13 11:54:42 UTC

Actually, I would say the commit was made to F18 branch