sacadm - service access controller administration
sacadm -a -p pmtag -t type -c cmd -v ver [-f dx] [-n count]
[-y comment] [-z script]
sacadm -r -p pmtag
sacadm -s -p pmtag
sacadm -k -p pmtag
sacadm -e -p pmtag
sacadm -d -p pmtag
sacadm -l [-p pmtag | -t type]
sacadm -L [-p pmtag | -t type]
sacadm -g -p pmtag [-z script]
sacadm -G [-z script]
sacadm -x [-p pmtag]
sacadm is the administrative command for the upper level of
the Service Access Facility hierarchy (port monitor administration).
sacadm performs the following functions:
- o
- adds or removes a port monitor
- o
- starts or stops a port monitor
- o
- enables or disables a port monitor
- o
- installs or replaces a per-system configuration script
- o
- installs or replaces a per-port monitor configuration script
- o
- prints requested port monitor information
Requests about the status of port monitors (-l and
-L) and requests to print per-port monitor and per-system
configuration scripts (-g and -G without the -z option)
may be executed by any user on the system. Other sacadm commands may
be executed only by the super-user.
-a
Add a port monitor. When adding a port monitor,
sacadm creates the supporting directory structure in /etc/saf
and /var/saf and adds an entry for the new port monitor to
/etc/saf/_sactab. The file _sactab already exists on the
delivered system. Initially, it is empty except for a single line, which
contains the version number of the Service Access Controller. Unless the
command line that adds the new port monitor includes the -f option with
the -x argument, the new port monitor will be started. Because of the
complexity of the options and arguments that follow the - a option, it
may be convenient to use a command script or the menu system to add port
monitors.
-c cmd
Execute the command string cmd to start a port
monitor. The -c option may be used only with a -a. A -a
option requires a -c.
-d
Disable the port monitor pmtag.
-e
Enable the port monitor pmtag.
-f dx
The
-f option specifies one or both of the
following two flags which are then included in the flags field of the
_sactab entry for the new port monitor. If the
-f option is not
included on the command line, no flags are set and the default conditions
prevail. By default, a port monitor is started. A
-f option with no
following argument is illegal.
d
Do not enable the new port monitor.
x
Do not start the new port monitor.
-g
The -g option is used to request output or to
install or replace the per-port monitor configuration script
/etc/saf/pmtag/_config. -g requires a -p
option. The -g option with only a -p option prints the per-port
monitor configuration script for port monitor pmtag. The -g
option with a -p option and a -z option installs the file
script as the per-port monitor configuration script for port monitor
pmtag. Other combinations of options with -g are invalid.
-G
The -G option is used to request output or to
install or replace the per-system configuration script
/etc/saf/_sysconfig. The -G option by itself prints the
per-system configuration script. The -G option in combination with a
-z option installs the file script as the per-system
configuration script. Other combinations of options with a -G option
are invalid.
-k
Stop port monitor pmtag.
-l
The -l option is used to request port monitor
information. The -l by itself lists all port monitors on the system.
The -l option in combination with the -p option lists only the
port monitor specified by pmtag. A -l in combination with the
-t option lists all port monitors of type type. Any other
combination of options with the -l option is invalid.
-L
The -L option is identical to the -l option
except that the output appears in a condensed format.
-n count
Set the restart count to count. If a restart count
is not specified, count is set to 0. A count of 0 indicates that
the port monitor is not to be restarted if it fails.
-p pmtag
Specifies the tag associated with a port monitor.
-r
Remove port monitor pmtag. sacadm removes
the port monitor entry from /etc/saf/_sactab. If the removed port
monitor is not running, then no further action is taken. If the removed port
monitor is running, the Service Access Controller (SAC) sends it
SIGTERM to indicate that it should shut down. Note that the port
monitor's directory structure remains intact.
-s
Start a port monitor. The SAC starts the port monitor
pmtag.
-t type
Specifies the port monitor type.
-v ver
Specifies the version number of the port monitor. This
version number may be given as
-v `pmspec -V`
where pmspec is the special administrative command for port
monitor pmtag. This special command is ttyadm for
ttymon and nlsadmin for listen. The version stamp of
the port monitor is known by the command and is returned when pmspec
is invoked with a -V option.
-x
The -x option by itself tells the SAC to read its
database file (_sactab). The -x option with the -p option
tells port monitor pmtag to read its administrative file.
-y comment
Include comment in the _sactab entry for
port monitor pmtag.
-z script
Used with the -g and -G options to specify
the name of a file that contains a configuration script. With the -g
option, script is a per-port monitor configuration script; with
-G it is a per-system configuration script. Modifying a configuration
script is a three-step procedure. First a copy of the existing script is made
(-g or -G). Then the copy is edited. Finally, the copy is put in
place over the existing script (-g or -G with -z).
If successful, sacadm will exit with a status of 0.
If sacadm fails for any reason, it will exit with a nonzero status.
Options that request information will write the information on the standard
output. In the condensed format (-L), port monitor information is
printed as a sequence of colon-separated fields; empty fields are indicated
by two successive colons. The standard format (-l) prints a header
identifying the columns, and port monitor information is aligned under the
appropriate headings. In this format, an empty field is indicated by a
hyphen. The comment character is #.
Example 1 A sample output of the sacadm command.
The following command line adds a port monitor. The port monitor
tag is npack; its type is listen; if necessary, it will
restart three times before failing; its administrative command is
nlsadmin; and the configuration script to be read is in the file
script:
sacadm -a -p npack -t listen -c /usr/lib/saf/listen npack
-v `nlsadmin -V` -n 3 -z script
Remove a port monitor whose tag is pmtag:
sacadm -r -p pmtag
Start the port monitor whose tag is pmtag:
sacadm -s -p pmtag
Stop the port monitor whose tag is pmtag:
sacadm -k -p pmtag
Enable the port monitor whose tag is pmtag:
sacadm -e -p pmtag
Disable the port monitor whose tag is pmtag:
sacadm -d -p pmtag
List status information for all port monitors:
sacadm -l
List status information for the port monitor whose tag is
pmtag:
sacadm -l -p pmtag
List the same information in condensed format:
sacadm -L -p pmtag
List status information for all port monitors whose type is
listen:
sacadm -l -t listen
Replace the per-port monitor configuration script associated with
the port monitor whose tag is pmtag with the contents of the file
file.config:
sacadm -g -p pmtag -z file.config
/etc/saf/_sactab
/etc/saf/_sysconfig
/etc/saf/pmtag/_config