<s>
Service	B-Operating_System
Management	I-Operating_System
Facility	I-Operating_System
(	O
SMF	O
)	O
is	O
a	O
feature	O
of	O
the	O
Solaris	B-Application
operating	I-Application
system	I-Application
as	O
of	O
version	O
10	O
and	O
OpenSolaris-descendant	O
illumos	B-Application
with	O
its	O
illumos	B-Application
distributions	O
,	O
that	O
creates	O
a	O
supported	O
,	O
unified	O
model	O
for	O
services	O
and	O
service	B-Operating_System
management	I-Operating_System
on	O
each	O
Solaris	B-Application
or	O
illumos	B-Application
system	O
and	O
replaces	O
init.d	O
scripts	O
.	O
</s>
<s>
Works	O
in	O
conjunction	O
with	O
the	O
Solaris	B-Application
Fault	O
Manager	O
,	O
allowing	O
software	O
recovery	O
in	O
the	O
event	O
of	O
hardware	O
faults	O
(	O
CPU	O
,	O
memory	O
)	O
,	O
admin	O
error	O
such	O
as	O
accidental	O
kills	O
,	O
and	O
software	O
core	O
dumps	O
.	O
</s>
<s>
They	O
can	O
be	O
defined	O
to	O
have	O
special	O
states	O
that	O
allow	O
finer	O
control	O
and	O
permit	O
monitoring	O
and	O
probing	O
for	O
diagnosing	O
software	O
failures	O
,	O
rather	O
than	O
having	O
the	O
administrator	O
or	O
dedicated	O
"	O
restarter	B-Operating_System
"	O
modules	O
kill	O
and	O
restart	O
the	O
service	O
as	O
before	O
.	O
</s>
<s>
Other	O
services	O
include	O
NFS	B-Protocol
for	O
sharing	O
files	O
on	O
a	O
network	O
,	O
DHCP	B-Protocol
for	O
dynamic	O
IP	B-Protocol
address	I-Protocol
assignment	O
,	O
and	O
Secure	B-Protocol
Shell	I-Protocol
for	O
remote	O
logins	O
.	O
</s>
<s>
In	O
versions	O
of	O
Solaris	B-Application
prior	O
to	O
Solaris	B-Application
10	I-Application
,	O
and	O
in	O
UNIX	O
in	O
general	O
,	O
services	O
are	O
configured	O
in	O
text	O
files	O
,	O
with	O
startup	O
files	O
in	O
the	O
/etc/rc.d/	O
directory	O
trees	O
,	O
and	O
configuration	O
data	O
in	O
files	O
such	O
as	O
/etc/inittab	O
and	O
/etc/inetd.conf	O
.	O
</s>
<s>
A	O
typical	O
system	O
could	O
have	O
dozens	O
of	O
configuration	O
files	O
,	O
and	O
configuration	O
could	O
involve	O
various	O
methods	O
,	O
including	O
editing	O
shell	B-Language
scripts	I-Language
.	O
</s>
