[유닉스]Solaris cron restart

Service management details

svcs(1) command

System administrators can more easily monitor services using Solaris Service Manager’s service status information and service activation/deactivation interfaces based on the commands (svcs(1), svcadm(1) etc). Until Solaris 9, it was a complicated procedure to understand service status. Service level information was not provided and system administrators have to assume service status from their own analysis of kernel level information. A slow and error prone process.

svcadm(1M) command

Services and the services on which they depend are started in their appropriate order using the Solaris Service Manager svcadm(1) command. System administrators are longer required to run complicated service startup operations.

For example, if there are two services, Service A and Service B, and Service A depends on Service B, previously the system administrator needed to start the services paying close attention to their dependent relationship. Now with Solaris10, they only have to start Service A. Solaris Service Manager automatically detects that Service B needs to be started, and starts the services in the right sequence.

With Solaris 10 the traditional service stop procedure using the kill(1) or pkill(1) commands is no longer available. This is because, once stopped, Solaris Service Manager will automatically restart them. So a new command, svcadm (1M) is now used for stopping services.

References

	Solaris 9 or earlier versions	Solaris 10
Service status	ps(1) command  (only process information is shown)	svcs(1) or ps(1) command
Service stop	# /etc/init.d/cron stop	# svcadm disable -t  system/cron:default
Service restart (temporary)	# /etc/init.d cron start	# svcadm enable -t  system/cron:default
Service stop  After service restart the service isn't started	(1)# /etc/init.d/cron stop  (2)# mv /etc/rc2.d/S75cron /etc/rc2.d/_S75cron  (Need to rename the service start script)	# svcadm disable -t  system/cron:default
Service restart (permanent)	(1) # /etc/init.d/cron stop  (2) # /etc/init.d/cron start	# svcadm restart -t  system/cron:default

- Solaris 10 간단한 재실행

# svcs cron
STATE          STIME    FMRI
online          4월_26  svc:/system/cron:default
# svcadm restart cron
#
# svcs cron
STATE          STIME    FMRI
online         11:26:41 svc:/system/cron:default