Solaris Service Management Facility usage and tips

# Service Management Facility

What does it do?



  provides service management via service configuration databse
  provides legacy rc script support
  facilitates service dependancies
  permits automatic restarts of failed and/or stopped services
  provide service status info (online/offline, dependencies)
  causes each defined service to log individually to /var/svc/log
  defines a fault management resource identifier (FMRI)
  can load mutually exclusive services in parallel
 
Services States:
1- Online/Offline
2- Legacy_run/maintenace
3- uninitialized/degraded/disabled


Primary SMF utilities
svcs - lists services and providers additional info
svcadm - permits interaction with services, including state transitions
svccfg - permits interaction with service configuration database

svc.startd - is the default service restarter/manager
inetadm - is the default, delegated service restater for inetd



FMRIs provide categories for services including
1- network
2- milestone

svcs -d svc:/network/smtp:sendmail   # shows service dependancy for sendmail

svcs -D svc:/network/smtp:sendmail   # shows service depend on sendmail

svcs -l smtp - FRMIs can usally be referenced by their unique parts

svcs -x smtp  - Brief information about the service

svcs -p smtp  - will show the PID for smtp

log files located at /var/svc/log/


##svcadm

Diable service:
svcadm disable FMRI
svcadm disable -s FMRI    # stops each service instance
svcadm disable -t FMRI    # effects temporary disable

svcadm delegates service management to default restarter, ie: svc.startd

Enable a service:
svcadm enable FMRI
svcadm enable -t FMRI    # enables FMRI for current session
svcadm enable -r FMRI    # All dependancies are enabled
svcadm enable -s FMRI    # enables each service instance

Refresh:
svcadm -v refresh FMRI

Restart:
svcadm -v svcadm restart FMRI

### Service management with inetadmin
inetadm -l FMRI   # like svcs -l
inetadm -d FMRI   # disable FMRI
inetadm -e FMRI   # enable FMRI
inetadm -p        # Shows Global directives

### Editing inetd service options
inetadm -m svc:network/tftp/udp6:default exec="/usr/sbin/in.tftpd -s /tftpboot2"  # Change options for specific service
inetadm -M max_copies=10   # change global directives (e.g. max_copies)