SYSMANHELP.HLB  —  PARAMETERS
    There are several PARAMETERS subcommands. Select the one you want
    from the choices below.

1  –  DISABLE

1.1  –  CHECKS

    Bypasses validation of parameter values. SYSMAN parameter
    validation ensures that the parameters fall within the defined
    minimum and maximum values specified in the PARAMETERS SET
    command.

    Format

      PARAMETERS DISABLE CHECKS

1.1.1  –  Description

    The PARAMETERS DISABLE CHECKS command enables you to override
    minimum and maximum values established for system parameters.
    SYSMAN does parameter checks by default. If you attempt to
    set parameter values outside the allowable limits when checks
    are enabled, the operating system issues an error message. By
    disabling checks you can set parameter values regardless of the
    minimum and maximum limits.

                                   NOTE

       Range checks are enabled by default because VSI suggests that
       systems operate within these minimum and maximum values.
       Setting parameters outside these limits can result in system
       failures or hangs.

1.1.2  –  Example

  SYSMAN> SET ENVIRONMENT/CLUSTER
  SYSMAN> SET PROFILE/DEFAULT=SYS$SYSTEM/PRIVILEGES=CMEXEC
  SYSMAN> PARAMETERS SET MAXPROCESSCNT 10
  %SMI-E-OUTRANGE, parameter is out of range
  SYSMAN> PARAMETERS DISABLE CHECKS
  SYSMAN> PARAMETERS SET MAXPROCESSCNT 10

      In this example, the initial attempt to set MAXPROCESSCNT
      below the minimum fails because range checks are enabled.
      However, once range checks are disabled, the PARAMETERS SET
      MAXPROCESSCNT command succeeds.

2  –  ENABLE

2.1  –  CHECKS

    Validates all parameter values to ensure that they fall within
    the defined minimum and maximum values.

    Because range checks are enabled by default, use PARAMETERS
    ENABLE CHECKS after entering a PARAMETERS DISABLE CHECKS command.

    Format

      PARAMETERS ENABLE CHECKS

2.1.1  –  Example

  SYSMAN> PARAMETERS DISABLE CHECKS
  SYSMAN> PARAMETERS SET WSMAX 20
  SYSMAN> PARAMETERS ENABLE CHECKS
  SYSMAN> PARAMETERS SET WSMAX 30
  %SMI-E-OUTRANGE, parameter is out of range
  SYSMAN> PARAMETERS SHOW WSMAX
  Parameter Name    Current  Default  Minimum  Maximum Unit  Dynamic
  WSMAX                2000     1024       60   6400 pages

      The PARAMETERS ENABLE CHECKS command in this example shows
      that when range checking is disabled, the system accepts a
      working set value (WSMAX) of 20. However, once range checking
      is enabled with the PARAMETERS ENABLE CHECKS command, the
      system does not accept a WSMAX below the minimum, which is
      60.

3  –  SET

    Changes the value of a specific parameter in the work area.

    The PARAMETERS SET command does not modify parameter files, the
    current system parameter file on disk, or the active system.
    For information about performing these modifications, see the
    PARAMETERS WRITE command.

    Format

      PARAMETERS SET  parameter-name [value]

                      /STARTUP filespec

3.1  –  Parameters

 parameter-name

    Specifies the name of the parameter to modify. Instead of a
    name, you can enter a period (.)  to change the value of the most
    recently displayed or the most recently modified parameter. See
    the PARAMETERS SHOW command for an example of using the period in
    place of a parameter name.

    For a list of system parameters and further information about
    them, use the command HELP PARAMETERS.

 value

    Specifies the new value for the parameter. Enclose values for
    ASCII parameters in quotation marks if they contain embedded
    spaces or other special characters.

    Typically the value is an integer or the keyword DEFAULT. The
    keyword DEFAULT sets the parameter to its default value. The
    PARAMETERS SHOW command displays the defined minimum, maximum,
    and default values for the parameter, which are required unless
    range checking is disabled with the command PARAMETERS DISABLE
    CHECKS.

3.2  –  Qualifier

3.2.1    /STARTUP

       /STARTUP filespec

    Sets the name of the site-independent startup procedure to the
    given file specification. A file specification has a maximum
    length of 31 characters. The initial startup command procedure is
    SYS$SYSTEM:STARTUP.COM.

3.3  –  Examples

    1.SYSMAN> PARAMETERS SET PFCDEFAULT 20

      This command assigns a value of 20 to the PFCDEFAULT parameter.

    2.SYSMAN> PARAMETERS SET GBLSECTIONS DEFAULT

      This command assigns the default value (40) to the GBLSECTIONS
      parameter.

    3.SYSMAN> PARAMETERS SET/STARTUP SYS$SYSTEM:XSTARTUP.COM

      This command assigns SYS$SYSTEM:XSTARTUP.COM as the current
      site-independent startup command procedure.

4  –  SHOW

    Displays the value of a parameter or a group of parameters in the
    work area. In addition, the command shows the minimum, maximum,
    and default values of a parameter and its unit of measure.

    Format

      PARAMETERS SHOW  [parameter-name]

4.1  –  Parameter

 parameter-name

    Specifies the name of a parameter or a period (.).  A period is
    interpreted as a request for the parameter specified in the last
    PARAMETERS SET or PARAMETERS SHOW command. The parameter name
    can be abbreviated, but the abbreviation must be unique because
    SYSMAN selects the first parameter that matches.

    Beginning in OpenVMS Version 8.2, if the parameter-name that you
    enter is obsolete, SYSMAN displays OBSOLETE in the Units column.

4.2  –  Qualifiers

4.2.1    /ACP

    Displays all Files-11 ACP parameters.

4.2.2    /ALL

    Displays the values of all active parameters.

4.2.3    /CLUSTER

    Displays all parameters specific to clusters.

4.2.4    /DYNAMIC

    Displays all parameters that would be in effect immediately after
    you enter a PARAMETERS WRITE ACTIVE command.

4.2.5    /GEN

    Displays all general parameters.

4.2.6    /HEX

    Displays numeric parameters in hexadecimal rather than decimal
    radix. Specify the /HEX system parameter name or the parameter
    type. If you specify the /HEX qualifier with the /NAMES
    qualifier, /HEX is ignored.

4.2.7    /JOB

    Displays all job controller parameters.

4.2.8    /LGI

    Displays all LOGIN security control parameters.

4.2.9    /MAJOR

    Displays the most important parameters.

4.2.10    /MULTIPROCESSING

    Displays parameters specific to multiprocessing.

4.2.11    /NAMES

    Displays only parameter names. You can combine other qualifiers
    with this one.

4.2.12    /OBSOLETE

    Displays the names of all obsolete system parameters.

4.2.13    /OUTPUT

    Directs output to the specified file rather than SYS$OUTPUT.
    Without a file specification, the output goes to SYSMAN.LIS in
    the current directory.

4.2.14    /PAUSE

    Controls the rate at which the system displays information about
    parameters.

4.2.15    /PQL

    Displays the parameters for all default process quotas.

4.2.16    /RMS

    Displays all parameters specific to OpenVMS Record Management
    Services (RMS).

4.2.17    /SCS

    Displays all parameters specific to OpenVMS Cluster System
    Communications Services.

4.2.18    /SPECIAL

    Displays all special control parameters.

4.2.19    /STARTUP

    Displays the name of the site-independent startup procedure.

4.2.20    /SYS

    Displays all active system parameters.

4.2.21    /TTY

    Displays all parameters for terminal drivers.

4.3  –  Description

    SYSMAN displays parameters in decimal unless you specify the /HEX
    qualifier. ASCII values are always displayed in ASCII.

    Abbreviations for parameter names must be unique because SYSMAN
    displays the first parameter matching the abbreviation. Ambiguity
    checks do not occur. For example, a specification of PARAMETERS
    SHOW GBL displays the GBLSECTIONS parameter. To display the
    GBLPAGFIL parameter, you must specify PARAMETERS SHOW GBLPAGF
    to avoid displaying the GBLPAGES parameter.

    You can use a period (.)  to indicate that you want to work with
    the system parameter that you specified in the last PARAMETERS
    SET or PARAMETERS SHOW command.

5  –  USE

    Reads a set of system parameters into the work area for display
    or modification.

    Format

      PARAMETERS USE  source

5.1  –  Parameter

 source

    The source of a system parameter file for data to be read into
    the work area. The source can be any of the following items:

    ACTIVE   Read parameters from memory. When you invoke SYSMAN,
             active values are in effect.
    CURRENT  Read parameters from the default system parameter file,
             which is the source for parameters when you boot the
             system. Using the current parameters requires read (R)
             access to the system parameters file.

             o  On Alpha systems, the file that contains current
                parameters is SYS$SYSTEM:ALPHAVMSSYS.PAR.

             o  On Integrity servers, the file that contains current
                parameters is SYS$SYSTEM:IA64VMSSYS.PAR.

    filespec Read parameters from a previously created system
             parameter file. The default file type is .PAR. You need
             read access to the file.
    DEFAULT  Read a parameter set containing the default values
             for all parameters. These values are supplied with the
             operating system.

5.2  –  Description

    Depending on the source you enter with the command, PARAMETERS
    USE activates the parameter values:

    o  Stored in memory (ACTIVE)

    o  Stored in the default boot parameter file (CURRENT)

    o  From another file (filespec)

    o  From the system default values (DEFAULT)

5.3  –  Example

  SYSMAN> PARAMETERS USE DEFAULT
  SYSMAN> SET STARTUP_P1 "MIN"

      The first command activates the default parameter values that
      are supplied with the operating system. The second command
      sets the STARTUP_P1 system parameter to "minimum." This avoids
      starting all layered products on a system that is not tuned for
      them, which might cause the system to hang.

6  –  WRITE

    Writes the contents of the work area to memory, to disk, or to a
    file, depending on the destination that you specify.

    Format

      PARAMETERS WRITE  destination

6.1  –  Parameter

 destination

    The destination of a new parameter file can be any of the
    following ones:

    ACTIVE   Write parameters to memory. Using the ACTIVE parameter
             requires CMKRNL privilege.
    CURRENT  Write parameters to the system parameters file, which
             contains the current parameters on disk. Using the
             current parameter requires write (W)  access to the
             system parameters file.

             o  On Alpha systems, the file that contains current
                parameters is SYS$SYSTEM:ALPHAVMSSYS.PAR.

             o  On Integrity servers, the file that contains current
                parameters is SYS$SYSTEM:IA64VMSSYS.PAR.

    filespec Write parameters to a file. The default file type is
             .PAR and you need write access to the file.

6.2  –  Description

    The PARAMETERS WRITE command writes the system parameter values
    and the name of the site-independent startup command procedure
    from the work area to the active system in memory, the current
    system parameter file on disk, or your choice of a parameter
    file. You can write only dynamic parameter values to the active
    system.

    Both the PARAMETERS WRITE ACTIVE and PARAMETERS WRITE CURRENT
    commands send a message to OPCOM to record the event.

6.3  –  Examples

    1.SYSMAN> PARAMETERS WRITE SYS$SYSTEM:SPECIAL

      This command creates a new parameter specification file.

    2.SYSMAN> PARAMETERS WRITE CURRENT

      This command modifies the current system parameter file on disk
      (SYS$SYSTEM:ALPHAVMSSYS.PAR).
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