SHOW-SYSTEM-PARAMETERS

Output system parameters

Component:	BS2000
Functional area:	System control and optimization
Domain:	SYSTEM-TUNING
Privileges:	all privileges
Routing code:	@

Function

The SHOW-SYSTEM-PARAMETERS command allows the user to obtain information about important options in the BS2000 system (system parameters). System parameters are generated with default settings and can be modified by systems support by means of the parameter service during system initialization or during system operation using the MODIFY-SYSTEM-PARAMETERS command. The system parameters define the character of the BS2000 system. The nonprivileged user only receives information about the nonprivileged system parameters.
A detailed description of the system parameters can be found in the section "Alphabetical list of system parameters".
The information is output to SYSOUT or to SYSLST.

The command supports structured output in S variables (see "Output in S variable").

Privileged functions

Privileged users are shown information about all system parameters currently defined.

Restrictions

The OUTPUT operand is not available if the command is issued at the console.

Format

SHOW-SYSTEM-PARAMETERS                                                                                                                

PARAMETER = *ALL / list-poss(2000): <name 1..8>

, OUTPUT = *SYSOUT / *SYSLST

Operands

PARAMETER = *ALL / list-poss(2000): <name 1..8>
Specifies which system parameters the user wishes to obtain information about. The default value is *ALL, i.e. nonprivileged users receive information about all nonprivileged system parameters.
The user can specify the names of those system parameters about which he wishes to receive information in a list.

OUTPUT = *SYSOUT / *SYSLST
This operand is not available if the command is issued at the console.
Specifies whether output is to be to SYSOUT (default) or SYSLST. 

Return codes

(SC2)	SC1	Maincode	Meaning
	0	CMD0001	Command executed without error
1	0	CMD0001	Command output interrupted
2	0	NSI6250	System parameter does not exist or privilege is inadequate
	32	CMD2009	Internal error during S variable generation
2	0	NBR1099	Output to SYSLST not allowed
	64	OPS0002	Command interrupted during generation of S variables
	130	OPS0001	Not enough memory to generate S variables

Output in S variable

Output information	Name of the S variable	T	Contents	Condition
Output format of the system parameter	var(*LIST).SYS-PAR(*LIST).FORM	S	*CHAR *HEX-VAL *INTEGER-VAL *PAR-NOT-ACCESS *PAR-NOT-DEFI
Name of the system parameter	var(*LIST).SYS-PAR(*LIST).NAME	S	<c-string 1..8>
Value of the system parameter	var(*LIST).SYS-PAR(*LIST).VAL	S	<c-string 1..4096>

Example (Output of the nonprivileged system parameters)

/show-sys-par

%ASRSW1   : 0
%ASRSW2   : 1
%AUDALLOW : C'YES'
%BLKCTRL  : C'PAMKEY'
%BLSCOPYN : C'FUJITSU TECHNOLOGY SOLUTIONS GMBH                             '
%BLSCOPYR : C'            '
%BLSLDPXS : X'10000000'
%CMDFILE  : C'CMDFILE                                               '
%DEFLUID  : C'$TSOS          '
%DIATTL   : C'N'
%DMCMAXP  : 512
%DUMPCL5P : X'00'
%DUMPSEPA : 1
%ENCRYPT  : C'Y'
%FILECRYP : C'AES '
%FMTYFNLG : C'2'
%FREFCRYP : C'ENCRYPTO'
%FST32GB  : 0
%HOSTCODE : C'EDF03IRV'
%ISBLKCTL : C'NONKEY'
%MIGHOST  : X'00'
%MSGDEST  : C'<*  '
%NBACODE  : C'E'
%NBESSIZE : 40.000
%NBLOGENF : C'E'
%NBMESLG  : C'L'
%NBMSGCSD : C'Y'
%NBOPTINT : 120
%NBRCILU  : 5.000
%NBRCSCK  : 10
%NBRCSCKN : 10
%NBRUNSP  : C'N'
%NBRUNWT  : 180
%NETCODE  : C'*ISO    '
%NUMBACK  : 4
%RDTESTPR : 9
%SDPINTLN : 32
%SECSTART : C'N'
%SECSTENF : C'N'
%SHUTARCH : C'N'
%SHUTPROC : C'BY-SHUTDOWN-CMD'
%SSMLGOF1 : C'NO-SPOOL '
%SSMLGOF2 : C'NO   '
%SSMOUT   : C'MAIL '
%SVC79    : 0
%TEMPFILE : C'# '
%WRTESTPR : 9

Alphabetical list of system parameters

The following overview lists all system parameters in alphabetical order. In the bracket after the name, the following properties are listed:

• Output to all users (“nonprivileged”) or only to privileged users (“privileged”)

• Specification “dynamically changeable”, if the system parameter can be modified during operation, by using the MODIFY-SYSTEM-PARAMETERS command

• Specification <type>/<length> of the system parameter. This information is needed for output of the system parameter in a program with the NSIOPT macro.

  where:

  <type>	A: Arithmetic value C: Character string X: Hexadecimal value
  <length>	Length specification for the system parameter in bytes

Default values for a system parameter are underlined.

ASRSW1 (nonprivileged, A/1)

Subconsoles are allowed to run the ASR command with the ADD operand as long as the command affects the status of the issuing subconsole.

0	Execution allowed at subconsoles.
1	Execution permissible for main consoles only.

ASRSW2 (nonprivileged, A/1)

Applications which function as virtual consoles have the same authorizations in respect of the ASR command as:

0	a subsidiary console.
1	the main console.

AUDALLOW (nonprivileged, C/3)

Specifies whether the AUDIT function (hardware and linkage AUDIT) should be available on a system-wide basis in the current session.

YES	AUDIT is available system-wide
NO	AUDIT is not available. A linkage AUDIT which has been started will be completed if required.

BACKUP (privileged, C/1)

Defines the standard backup level for files (for ARCHIVE save runs).

Values: A / B / C / D / E 

BLKCTRL (nonprivileged, C/6)

Recommendation for the file attribute BLOCK-CONTROL-INFO, dependent on the PAMKEY characteristic of a disk (K or NK disk). For example, BLKCTRL is evaluated by LMS, LMSCONV, and PERCON. The following values are possible:

PAMKEY (compatible mode)

On K disks the default value BLOCK-CONTROL-INFO=PAMKEY applies to all files. On NK disks the default value BLOCK-CONTROL-INFO=DATA applies to SAM and ISAM files, BLOCK-CONTROL-INFO=NO applies to UPAM files.

NONKEY (migration mode)

On K and NK disks the default value BLOCK-CONTROL-INFO=DATA applies to SAM and ISAM files, BLOCK-CONTROL-INFO=NO applies to UPAM files.

BLSCOPYN (nonprivileged, dynamically changeable, C/63)

Value for the copyright text used by the BINDER if SYSTEM-DEFAULT is specified for the COPYRIGHT operand in the START-LLM-CREATION and MODIFY-LLM-ATTRIBUTES statements.

Values: alphanumeric; max. 63 characters; the default value is a blank but this must not be part of the value.

BLSCOPYR (nonprivileged, dynamically changeable, C/12)

Value for the copyright text used by TSOSLINK if no value is specified for the COPYRIGHT operand in the PROGRAM statement.

Values: alphanumeric; max. 12 characters; the default value is a blank but this must not be part of the value.

BLSLDPXS (nonprivileged, dynamically changeable, X/4)

Program load address value used by TSOSLNK if the operand LOADPT=*XS is specified in the OVERLAY or PROGRAM statement.

Values: X'10000000', hexadecimal, 4 bytes

BLSOPENX (privileged, dynamically changeable, C/1)

Defines the open mode for program libraries and elements opened by the BIND and LINK macros.

Y	open mode EXEC
N	open mode INPUT

BLSUSLIM (privileged, A/2)

Specifies the maximum number of class 4 memory pages which can be assigned to the BLS metadata at the same time.
The BLS metadata belongs to the shared code of the user and is loaded into the Common Memory Pool with the ASHARE macro of DBL. If the value is set to 0, the user’s shared code cannot be loaded with the ASHARE macro.

Values: 0 ... 100 ... 8192 

BMTNUM (privileged, A/1)

Specifies the number of I/O buffers for catalog management. The higher the value, the higher the throughput of the catalog management. 
For all Net-Storage volumes and private disks the specified number of buffers is created for a long period. The size of one buffer is 2 KB.

The following applies to every pubset:

• BMTNUM is only valid if neither in MRSCAT, nor in the IMPORT-PUBSET command is entered a specified value.
• The buffer size is 4 KB.
• The buffers are set during importing and released during exporting.
• Even if smaller values are input, at least 32 buffers are set.

Values: 0 ... 32 ... 255

The value 0 of BMTNUM is prohibited for private disks or Net-Storage volumes which are to be supported

CATBUFR (privileged, C/1)

Specifies whether the I/O buffers of the catalog management (see BMTNUM parameter) are to be in class 3 memory (i.e. resident). For pubsets in  MRSCAT or in the IMPORT-PUBSET command can be specified different values.

N	not resident
Y	resident

CMDFILE (nonprivileged, C/54)

Specifies whether a command file is to be automatically processed immediately at system initialization.

CMDFILE / name	File name of the command file; max. 44 characters
blank	no command file

CONSDDE7 (privileged, dynamically changeable, C/1)

The message DMS0DE7 SAM FILE CLOSED is to be output to console and / or SYSOUT.

N	output to SYSOUT
Y	output to console and SYSOUT

DEFLUID (nonprivileged, C/15)

Defines the system’s default user ID which can be referenced with the abbreviation $. In addition, the START-EXECUTABLE-PROGRAM, CALL-PROCEDURE, ENTER-JOB, ENTER-PROCEDURE commands and certain utility routines search under this user ID if the user has not specified a user ID and the file is not cataloged under his/her own user ID (Secondary Read).

Values: $TSOS / :catid:$userid, max. 15 characters

DESTLEV (privileged, A/1)

Defines whether disk storage space is to be overwritten by the system upon release. DESTLEV is valid for DELETE-FILE, MODIFY-FILE-ATTRIBUTES (with SPACE= RELEASE), for reconstructing F5 labels and when deleting members of a PLAM library.

0	Released extents are overwritten with binary zeros only in the case of files cataloged with DESTROY-BY-DELETE=YES or deleted with OPTION=DESTROY-ALL.
1	All system files for job control (S.IN, SPOOL) are created with DESTROY-BY-DELETE=YES.
4	Before being released, all extents are overwritten with zeros, regardless of the “DESTROY” value used to catalog or delete the file.
5	In addition to the actions performed for 4, the F5 labels are restored. To ensure that no undeleted free areas exist even after a system crash, all free pages are set to zero during F5 label reconstruction.
6	In addition to the actions performed for 5, the extents assigned to a file are overwritten with binary zeros when the file is logically created. I.e. at OPEN OUTPUT/OUTIN time all PAM pages in this file are set to zero. If the file contains PAM keys, they are set to an invalid CFID.

DIATTL (nonprivileged, dynamically changeable, C/1)

Limits the amount of time available to a interactive task.

N	The interactive task is not terminated at task time runout.
Y	The interactive task is terminated at task time runout.
Q	Like Y. In addition, in all tasks, i.e. Including batch tasks, the message EXC0070 is no longer issued when the CPU limit is reached. Subsequently, all additional times (e.g. for the STXIT contingency for the time runout event) are limited to one second.

DMCMAXP (nonprivileged, A/4)

Defines the maximum number of entries in the MRSCAT of the home pubset. No more entries may be created once this number has been reached unless others are deleted first. The maximum value may be exceeded during startup, as it is ignored in any case.
Values which do not correspond to a power of two are rounded up to the maximum value or the next power of two (128, 256, 512), but at least to 128.

Values: 1 ... 128 ... 4095 

DMMAXSC (privileged, A/1)

Maximum value (in PAM blocks) to which the secondary allocation can be doubled when extending a file. The value must be at least as large as DMSCALL.
The value applies to all private disks. For a pubset, the value is only valid if none was specifically defined via the ADD- / MODIFY-MASTER-CATALOG-ENTRY command.

Values: 3 ... 48 ... 65535 2Kbyte

DMPRALL (privileged, A/4)

Primary allocation for files in PAM blocks as a default value for the SPACE operand in the CREATE-FILE command (in pages).
The value applies to all private disks. For a pubset, the value is only valid if none was specifically defined via the ADD- / MODIFY-MASTER-CATALOG-ENTRY command.

Values: 3 ... 65535

DMSCALL (privileged, A/4)

Secondary allocation for files in PAM blocks as a default value for SECONDARY-ALLOCATION in the SPACE operand of the CREATE-FILE command.
From there on, for each extension of the file, the number of PAM blocks currently entered in the catalog entry will be assigned and then doubled. It will not be doubled if that would lead to DMMAXSC being exceeded.
The value applies to all private disks. For a pubset, the value is only valid if none was specifically defined via the ADD- / MODIFY-MASTER-CATALOG-ENTRY command.

Values: 3 ... 65535

DUMPCL5P (nonprivileged, dynamically changeable, X/1)

Controls in CDUMP whether the privileged class 5 memory is to be contained in the user dump or the area dump.

X'00'	Class 5 memory is contained in the dump in its entirety.
X'01'	The privileged class 5 memory is suppressed when outputting user and area dumps.

DUMPCTRL (privileged, dynamically changeable, X/1)

Activates dynamic dump attributes. The following settings are possible:

Bit 2⁰ set:

Duplicate recognition activated; Duplicates are suppressed. Instead of a dump, message IDA0N56 is output. 

Bit 2¹ set:

Unattended operation switched on; question IDA0N52 is suppressed. This value has no effect on user and area dumps.

Bit 2² set:

The question IDA0N52 is suppressed if the error caused by the dump refers to a system task.

Bit 2³ set:

If the dump terminates abnormally, the question IDA0N99 is output with system dumps.

Bit 2⁴ set:

During the FILE call for the output file of the dump the parameters IOPERF=HIGH and IOUSAGE=WRITE are not used. This causes the dump file to always be stored on the default storage class when SMS is used. This value only makes sense when using SMS.

If DUMPCTRL=X'00' is specified, all functions described above are deactivated.

Values: X'00' ... X'1F'

DUMPSD# (privileged, dynamically changeable, X/1)

Defines the number of system dumps output “automatically” (without any operator dialog) for each session. The parameter has no effect on user/area dumps.

X'00'  An operator dialog is effected at the very first system dump.

Values: X'00' ... X'FF'

DUMPSEPA (nonprivileged, dynamically changeable, A/4)

Defines the output of secret pages for user and system dumps.

1	The output of secret pages is not suppressed.
2	The output of secret pages of class 6 memory is suppressed. The output of secret pages of class 1/2/3/4/5 memory is not suppressed.
3	The output of secret pages of class 1/2/3/4/5 memory is suppressed. The output of secret pages of class 6 memory is not suppressed.
4	The output of all secret pages is suppressed.

DUMPSREF (privileged, dynamically changeable, X/1)

Controls the output of the class 6 memory pages during a system dump.

X'00'	Output of referenced class 6 memory pages
X'01'	Output of all class 6 memory pages
X'02'	No output of class 6 memory pages
X'03'	Output of class 6 memory pages without write-protected pages

EACTETYP (privileged, dynamically changeable, A/1)

Defines which of the following messages are to be output via the console: BLS0500, BLS0517, BLS0519, BLS0524, BLS0526, BLS0539, BLS0551 and BLS0552

0	none
1	only BLS0519
2	all
3	all except BLS0519

EAMMEM (privileged, A/2)

Defines the size of class 4 memory used for EAM. In this case, only MVCs are performed for EAM calls, instead of I/Os on the disk.
This parameter is only valid for the home pubset.

Values: 0 ... 2730

EAMMIN (privileged, A/2)

Defines the maximum size of the file SYSEAM in units.
1 unit = 3 PAM pages on pubsets with an allocation unit (AU) of 3 PAM pages1 unit = 4 PAM pages on all other pubsets

If, with the first EAM access, it is recognized that the SYSEAM file is smaller than EAMMIN, it is expanded to the same size or created with the same size.
EAMMIN should be selected so that no secondary allocations are required, if possible, during normal operations. Recommendation: EAMMIN = 4500
With extended support for EAM on shared pubsets (see EAMSPVS), each system which imports a shared pubset works with its own EAMMIN value.

Values: 4 ... 3000 ... 64512

EAMSEC (privileged, A/2)

Defines the secondary allocation for the SYSEAM file (in units, see EAMMIN).
EAMSEC should be selected so that the maximum size of a SYSEAM file is reached with about 150 extents. The value should be a multiple of 8.
Recommendation: EAMSEC = 600
With extended support for EAM on shared pubsets (see EAMSPVS), each system which imports a shared pubset works with its own EAMSEC value.

Values: 1 ... 200 ... 64512

EAMSIZ (privileged, A/2)

Defines the size of the SYSEAM file (in units, see EAMMIN) which is available to a single user. Recommendation: EAMSIZ= 20000.
This allows a user to utilize the maximum size of an EAM file (65,536 PAM pages), yet prevents the system from becoming overloaded by one user alone.
The value EAMSIZ = 64512 (which corresponds to the maximum size of a pubset’s SYSEAM file) enables an individual user to occupy all the SYSEAM storage space on the pubset.
With extended support for EAM on shared pubsets (see EAMSPVS), each system which imports a shared pubset works with its own EAMSIZ value.

Values: 4 ... 64512

EAMSPVS (privileged, X/1)

Controls the treatment of the SYSEAM file on a shared pubset (SPVS).

X'00'	Only the master of an SPVS can set up a SYSEAM file on this SPVS (file name: :<SPVS-id>:$TSOS.SYSEAM)
X'01'	Any system with access to the SPVS can set up a SYSEAM file for it (file name: :<SPVS-id>:$TSOS.SYSEAM.<sysid>)

ENCRYPT (nonprivileged, C/1)

Controls the decryption of file and user passwords.

N	Passwords are stored in unencrypted form.
Y	Passwords are stored in encrypted form.

ERECRYPT (privileged, X/8)

Input parameter for CHECKPOINT / RESTART for calculating a check number for the checkpoint.

X'00'	No check number is calculated for the checkpoint
X'aaaabbbbcccccccc'	Parameters which are factors in the calculation of the check number; every parameter should be nonzero

EREPASSW (privileged, C/1)

Controls the checkpoint / RESTART functionality.

N	The full functional range of checkpoint/restart is permitted; the checkpoint files are not protected by a random password.
Y	Checkpoints can only be created by means of the WRCPT macro. CHKPT is only permitted if the associated FCB belongs to a *DUMMY file. Check-points cannot be written at the end of the tape in the case of VLTFs (Very Large Tape Files). In addition, checkpoint files protected by a random password are protected (in the same way as S.IN files).

ETMFXLOW (privileged, A/2)

Tasks with an external priority which is worse (i.e. greater than) or equal to ETMFXLOW are not given an aging tag in TU. Any increase in priority in TPR is loss with the transfer to TU.

Values: 127 ... 256 

FARMTSAV (privileged, X/1)

Defines that a file is included in the incremental save with ARCHIVE if its contents or catalog entry are changed.

X'00	The file is saved if its contents were changed.
X'01'	The file is also saved if only its catalog entry was changed.

FILECRYP (nonprivileged, dynamically changeable, C/4)

Determines the encryption method for conversion into an encrypted file. The encryption methods supported are AES (default) and DES.

With ENCRYPT-FILE the current value of the system parameter FILECRYP is taken over into the file’s encryption attributes.
When a file that has already been encrypted is accessed, the encryption method is taken over from the file’s catalog entry.

A change to the system parameter FILECRYP only becomes effective for a file that was already encrypted at the time of the change when the file is decrypted and then encrypted again.

Values: AES / DES

FMTYFNLG (nonprivileged, C/1)

Specifies how the file names of various logging files (CONSLOG, ACCOUNT) are to be formed with respect to the date.

2	The file name contains a 2-digit year value: <prefix>.yy.mm.dd.<suffix>
4	The file name contains a 4-digit year value: <prefix>.yyyy-mm-dd.<suffix>

FREFCRYP (nonprivileged, C/8)

If not empty, it contains a selected user ID. It is then only possible for files from this ID to be converted into encrypted files (ENCRYPT-FILE command) with a free definition of the crypto password.

To convert files from other user IDs, a reference file which is already encrypted must be specified.

The set of crypto passwords used is thus limited to that of the encrypted files from the selected user ID.

Value: blank / name, max. 8 characters

FSHARING (privileged, A/1)

Specifies whether the pubset access restrictions defined in the user catalog are effective.

Access to a pubset on the local system

0	Users may only access a pubset if they have an entry in the user catalog on this pubset.
1	Any user can access any pubset.

Access to a pubset on a remote system

0	Users may only access a pubset on the remote system if they have an entry in the user catalog on this pubset and in the user catalog of the home pubset of the remote system.
1	Any user can access any pubset.

This applies only to the standard case of a computer connection, i.e. the CCS (closely coupled system).

For reasons of compatibility the LCS (loosely coupled system) is still supported. FSHARING has no meaning in the LCS, i.e. it is not evaluated. The following access conditions apply, depending on the type of pubset:

Access to a remote SF pubset

Only users with an entry in the user catalog in this pubset can access a pubset on the remote system. The password in this entry must match the logon password on the home pubset of the local system.

Access to a remote SM pubset

Only users with an entry in the user catalog of such a pubset and an entry in the user catalog on the home pubset of the remote system can access this pubset. The password in the home pubset of the remote system must match the logon password on the home pubset of the local system. 

FST32GB (nonprivileged, dynamically changeable, A/1)

Specifies the scope with files >= 32 GB.

0	All FSTAT interfaces with version=0 or version=1 (corresponds to Version=710 or Version=800) for which the FNAM operand is not specified are rejected with return code 0576 if a file >= 32 GB is contained in the hit list.
1	(ignore the 3 byte data field overflow) If there is a file >= 32 GB found in the hit list, no error is displayed. The data fields which cannot be displayed are assigned the value X'FFFFFF'.

HOSTCODE (nonprivileged, C/8)

Specifies the “coded character set” which is to be used as the system’s default character set.

Values: EDF03IRV / name (up to 8 characters) of the coded character set. 

ISBLKCTL (nonprivileged, dynamically changeable, C/6)

Assigns the file attribute BLKCTRL for ISAM files on K disks. On NK disks, only the file attribute DATA can be assigned.

NONKEY	Irrespective of the disk type the file attribute DATA will be assigned
PAMKEY	(compatible mode) If the file resides on a K disk, it is given the attribute BLKCTRL=PAMKEY. If the file resides on a NK disk, it is given the attribute BLKCTRL=DATA.

ISBLKVAL (privileged, dynamically changeable, X/1)

Controls the validation of blocks of an NK-ISAM file during read access.

X'00'	Validation is deactivated.
X'01'	Validation is activated.

ISPLDEFC (privileged, X/1)

Defines the pubset used by ISAM if no catalog ID is specified when ISAM pools are processed.

X'00'	ISAM selects the DEFAULT-PUBSET specified in the user’s user catalog entry.
X'01'	ISAM selects the home pubset.

JTABSMEM (privileged, dynamically changeable, A/4)

On SUs x86 specifies the maximum CISCFW storage space - totaled for all active programs - on the entire system (in MB). When the default is 0 the JITSYS subsystem calculates the value itself (JIT = Just-in-time).

Values: 0 ... 1000000 

JTMAXMEM (privileged, dynamically changeable, A/4)

On SUs x86 specifies the maximum value for the size of the CISCFW work area per task (in MB). This value is the maximum value that can be set for the WORKSPACE parameter in the command MODIFY-DBL-DEFAULTS *CMD-CALL(CISC-COMPILATION=YES(WORKSPACE=n)).

CISCFW only obtains as must space as is required to execute the current /390 program. When JTMAXMEM=0 the programs only run in the slow interpreter mode.

Values: 0 ... 128 ... 65535

JTSHMEM (privileged, dynamically changeable, A/2)

On SUs x86 specifies how much storage space JITSYS is to use for storing shared compiled code (in MB).

Shared compiled code is created when emulating subsystems loaded in class 4 memory. If no such subsystems exist or these are not to be compiled as “shared”, the creation of shared combined code can be prevented with JTSHMEM = 0. The JTSHMEM value should be adjusted to the total amount of class 3 memory available.

The storage size specified with JTSHMEM is allocated immediately when JITSYS is initialized. Modification of the value during ongoing operation will until further notice is given, only be supported when the value is increased. The value can only be modified in steps of 4; other values are rounded up to the next multiple of 4.

Values: 0 ... 64 ... 256

JTSTDMEM (privileged, dynamically changeable, A/4)

On SUs x86 specifies the default value for the size of the CISCFW work area per task (in MB). This value is the default value of the WORKSPACE parameter in the MODIFY-DBL-DEFAULTS *CMD-CALL(CISC-COMPILATION= YES(WORKSPACE=*STD)) command.

This parameter can only be specified in steps of 4 MB. JITSYS rounds up to the next 4-MB limit. JITSYS only obtains as must space as is required to execute the current /390 program.

Values: 0 ... 16 ... 65535

L4MSG (privileged, A/1)

Controls output of question EXC044E: 'ACCEPT ALLOCATION-REQUEST...'

0	Question is not output
1	Question is output Exception: The request comes from the slave of a shared pubset.

L4SPDEF (privileged, A/4)

Presetting for saturation level 4 of the pubset storage space.
The saturation level 4 for a pubset is reached if fewer free PAM blocks are available than specified in the parameter.
For a pubset, the value is only valid if none was specifically defined via the ADD- / MODIFY-MASTER-CATALOG-ENTRY command.

Values: 66 ... 2500 ... 50,000,000 

MCXSPXCS (privileged, C/1)

Defines whether the computer is XCS-compatible or not.

N	the computer is not XCS-compatible No XCS name may be specified in the MSCF configuration file. The computer becomes a CCS computer and only SPVS functionality is available.
V	the computer is XCS-compatible Depending on what is specified for the XCS name in the MSCF configuration file, the computer becomes an XCS computer in the XCS network (it either creates this network or joins it) or a CCS server (SPVS functionality only). In CCS mode, requests for global XCS resources are rejected and the XCS functionality is not available, but MSCF can be started later in XCS mode.
Y	the computer is XCS-compatible Depending on what is specified for the XCS name in the MSCF configuration file, the computer becomes an XCS computer in the XCS network (it either creates this network or joins it) or a CCS server (SPVS functionality only). In CCS mode, requests for global XCS resources are satisfied by global system resources. As a result, the XCS functionality is available on the local system, but it is not possible to start MSCF in XCS mode in this system session.

MIGHOST (nonprivileged, dynamically changeable, X/1)

Global Server Unit settings for live migration

Bit 20:	Setting for Server Unit selection with SHOW-SYSTEM-INFORMATION command
Bit 21:	setting for Insert &00 (server type) in LOGON message JMS0150

The following applies:

0:	server on which IPL was executed (compatible behavior as without live migration)
1:	Current Server Unit to which migration took place (recommended value)

Values: X'00' ... X'03'

MSGCENTL (privileged, A/2)

Defines the length of an entry in high-speed memory for message processing (in bytes). The value must be a multiple of 4. This part of class 4 memory is used to buffer the last and most frequently used messages in order to reduce the number of file accesses.

Values: 36 ... 200 ... 2500 

MSGCENTN (privileged, A/2)

Defines the number of entries in high-speed memory (see above) for message processing.

The total size of high-speed memory can be calculated by multiplying the values for MSGCENTL and MSGCENTN.

Values: 0 ... 32 ... 32767

MSGDEST (nonprivileged, C/4)

If no destination is specified when texts are output at the console by a INFORM-OPERATOR command or a macro (MSG7X, TYPIO, ...), the destination defaults to the destination specified here.

Default value: '<* '
Values:	'<x '	x must be a valid routing code A..Z, 0..9, @, $, # or *
	'nnnn'	nnnn must be the name of an authorized user program
	'(mn)'	'(mn)'  mn must be the mnemonic name of a console
If an invalid destination is specified, the default value is used.

MSGDLAM (privileged, A/1)

Number of message files to be processed via DLAM.

Values: 0 ... 99

MSGFIL01, MSGFIL02, ..., MSGFIL15 (privileged, C/51)

File names of message files that should be activated in the startup even before MIP is commonly available. Of the file names listed here, as many are evaluated as are specified in the MSGNOFL parameter. The default settings apply MSGFIL01=SYSMES.BS2CP.<ver>, MSGFIL02=SYSMES.EKP.01.
There are no standard names for the parameters MSGFIL03 to MSGFIL15.

Values:

filename file name must be fully qualified. Only the user ID TSOS is possible. If no user ID is specified, “filename” may be up to 41 characters in length.

MSGLPRI (privileged, C/2)

Language for message output.

ED	English, German
DE	German, English

English=default; if there is no English entry, German message text is output (priority). Other languages can be specified if they are entered to the message work files. 

MSGNOFL (privileged, A/1)

Number of message files specified by means of the MSGFILxx parameter.

=0	At least one name for a message file is requested via the console.
>0	File names are requested via the console when the file name specified in the MSGFILxx parameter is invalid.

Values: 0 ... 2 ... 15

NBACODE (nonprivileged, C/1)

Defines the default routing code for when new operator commands are entered (dynamic setting).

Values: A ... E ... Z / 0 ... 9 / $ / * / @ / #

NBBAPRIV (privileged, C/1)

A more stringent access protection for $CONSOLE can be activated.

N	Any applications can be connected to $CONSOLE provided the requisite password is also specified. Local applications beginning with a dollar sign can be connected to $CONSOLE without specifying a password.
Y	Only local applications beginning with a dollar sign may be connected to $CONSOLE; such applications may only be opened under TSOS. In other words, the connection request is rejected if the processor name of the application is not the name of the home processor or if the application does not begin with a dollar sign.

NBCONOPI (privileged, C/1)

Sets the mode of operation on physical consoles and in $CONSOLE applications with dynamic authorization names.

N	Operator logon is deactivated
Y	Operator logon is activated

NBESSIZE (nonprivileged, A/4)

Defines the maximum size in PAM pages of the central system event stream file $SYSAUDIT.SYSLOG.ESS.SYSTEM. When the specified maximum size is reached, the oldest logged events are deleted and the storage space gained is used for the new data to be recorded.
The precise specification of the values set depends on the secondary allocation for this file. If the size is 0 then the file is not created. The system event-stream services are not available.

Values: 0 / 10000 ... 40000 ... 200000 

NBIMPRCA (privileged, C/1)

Defines whether the implicit authorizations are only effective until “System ready” and after SHUTDOWN END or whether they are to be managed during the entire session, i.e. assigned to the relevant main console.

N	The implicit authorizations are only effective on the main console until “System ready” and after SHUTDOWN END.
Y	The implicit authorizations are effective during the entire system run.

This system parameter is not evaluated when NBCONOPI=N applies.

NBKESNR (privileged, A/1)

Controls the formation of the name and the ID under which the SYS.CONSLOG files are written. For example, NBKESNR=3 leads to the fully qualified file name $TSOS.SYS.CONSLOG.yyyy-mm-dd.sss.nn. Missing specification or NBKESNR=0 leads to the file name $SYSAUDIT.SYS.CONSLOG.yyyy-mm-dd.sss.nnn.

0	SYSAUDIT ID and 3-digit serial number
1	TSOS ID and 3-digit serial number
2	SYSAUDIT ID and 2-digit serial number
3	TSOS ID and 2-digit serial number

NBLOGENF (nonprivileged, C/1)

Defines whether CONSLOG can be reactivated using the CHANGE-CONSLOG command following an unrecoverable DMS054D error.

E	When SYS.CONSLOG is opened, an additional file is set up as a dummy. If this is not possible, the operator is sent a warning. If message DMS054D still appears, message NBR0953 is sent to prompt the operator to resume console logging once space has been created (reply “R”) or to abort the system session (reply “H”).
N	Following message DMS054D the message EXC0991 CONSLOG INACTIVE appears. Once the space problems have been eliminated, the CHANGE-CONSLOG command can be used to open a new logging file. The serial number of SYS.CONSLOG incremented by two in order to log the failure.

If the maximum CONSLOG serial number defined by NBKESNR has already been reached, the CHANGE-CONSLOG command is rejected (NBLOGENF=E) or the current logging file is closed and console logging is deactivated (NBLOGENF=N).

NBLOGT0 (privileged, dynamically changeable, C/1)

Defines whether the TSNs of user tasks are displayed with all leading zeros in the CONSLOG file.

N	Leading zeros in TSNs can be replaced by blanks
Y	All leading zeros in TSNs appear in the CONSLOG file

NBMESLG (nonprivileged, C/1)

Specifies the output of messages sent via the INFORM-JOB or INFORM-ALL-JOBS commands.

L	Output with full length
S	Output in max. one line

NBMSGCSD (nonprivileged, dynamically changeable, C/1)

Governs whether system messages generated when all (physical) consoles are defective are to be held to have been output even if they have not been displayed at a physical console.

N	All messages with a physical console as authorized recipient are buffered in system storage until output on a physical console is possible.
Y	The messages are released once they have been distributed to other recipients (such as CONSLOG). This avoids problems with space shortfall on the system.

NBOPTINT (nonprivileged, A/1)

Interval in minutes after which message NBR0750 (containing the date) is to be output to all physical consoles. The routing code for this message is “E”.

0	Message NBR0750 is not output.

Values: 0 ... 255

NBRCILU (nonprivileged, A/4)

Specifies the time unit in milliseconds by which the interval in the command (CLI = communication interval limit) is multiplied to specify the effective operator task holding time.
If message NBR0974 occurs frequently, this unit should be increased.

Values: 1 ... 10 ... 255

NBRCSCK (nonprivileged, X/1)

Specifies the time in minutes after which the connection between a privileged, authorized user task (not a TSOS application on the home system) and the UCON task ($CONSOLE) is severed if no more messages are fetched by the user process.

Values: 1 ... 10 ... 255

NBRCSCKN (nonprivileged, X/1)

Specifies the time in minutes after which the connection between a nonprivileged, authorized user task (not a TSOS application on the home system) and the UCON task ($CONSOLE) is severed if no more messages are fetched by the user process.

Values: 1 ... 10 ... 255 

NBREPLY (privileged, C/1)

Specifies whether the authorization code * is to be linked to the authorization to answer all (normal) open operator questions in the system.
Exception: emergency questions and requests for additional command information from user tasks with the OPERATING privilege.

N	The authorization is not linked to the AC * .
Y	The authorization is linked to the AC * .

NBRUNSP (nonprivileged, C/1)

Specifies whether commands from RUN sequences are to be output on the console on which the RUN command was entered.

Values: N / Y

NBRUNUID (privileged, C/9)

Specifies under which user ID a RUN file (CMDFILE) is to be looked for if no explicit specification was given. If the first character is not “$”, the specification is ignored. The search takes place under the user ID TSOS.

Values: C' ' / $userid, userid max. 8 characters 

NBRUNWT (nonprivileged, A/4)

Specifies how long (in seconds) the system is to wait for AGOGO commands after ASTOP commands in RUN sequences.

Values: 10 ... 180 ... 255

NBSILND (privileged, C/1)

Specifies whether in a startup mode not equal DIALOG the output of the messages distributed via routing codes to all consoles until “System ready” is to be suppressed. The suppressed messages are logged in the SYS.CONSLOG file (Exception: questions)

N	These messages are output.
Y	Output of these messages is suppressed.

NETCODE (nonprivileged, dynamically changeable, C/8)

Specifies the default setting for the net coded character set when creating user entries, see the “Introductory Guide to DVS” manual [13]). When creating node files, the resulting net coded character set is determined in accordance with the coded character set and based on the net coded character set in the user entry.

*ISO	When copying EBCDIC encoded files in SAM node files a code conversion into an ISO8859-x character set is carried out. If ISO converted data are copied, no conversion takes place.
*NO-CONV	When copying the data in SAM node files, no code conversion takes place. Only the character for the line feed, matching the specified coded character set, is inserted between the file records.
name	CCSN of the standard character set for SAM-node files on Net-Storage. The character set must be known when the SAM node file is opened in XHCS. Any name with a maximum of 8 characters.

NRTKILL (privileged, dynamically changeable, C/1)

Specifies whether the operator command FORCE-JOB-CANCEL is forbidden or permitted. System administration is always allowed to issue this command, regardless of the value set here.

Y	Command is forbidden, message EXC0705 is output
N	Command is allowed

NTPSHIGH (privileged, C/1)

Defines how the time server “NETWORK TIME PROTOCOL” (NTP) is handled if no information about its quality (stratum) is available in BS2000.

N	If no stratum is available, it is handled like a stratum > 4, i.e. NTP retains its regular, low priority.
Y	If no stratum is available, it is handled like a stratum <= 4, i.e. NTP is the time source with the highest priority.

This parameter is obsolete. The current BS2000 NTP always supplies a stratum.

NUMBACK (nonprivileged, A/1)

Default value for the operand NUM-OF-BACKUP-VERS in the commands CREATE-FILE; defines the maximal number of file versions in the version backup archive.

n=0	Ignored by version backup
n>0	Maximal number of file versions saved in the version backup archive

Values: 0 ... 32

PWACTIVE (privileged, dynamically changeable, A/4)

Maximum number of passwords in the password list of a job (evaluated separately according to file and crypto passwords).
If the threshold value is reached, message DMS0691 is issued and no further file or crypto password can be entered for the current task before at least one of the crypto passwords in the crypto password table has been removed.

Values: 0 ... 15,728,639

PWENTERD (privileged, dynamically changeable, A/4)

Maximum permitted number of ADD-PASSWORD- and ADD-CRYPTO-PASSWORD commands per task (evaluated separately according to file and crypto passwords).
If the threshold value is reached, message DMS0692 is issued and no further file or crypto password can be entered for the current task.

Values: 0 ... 2,147,483,647 

PWERRORS (privileged, dynamically changeable, A/4)

Maximum permitted number of invalid attempts to check the password per task (evaluated separately according to file and crypto passwords).
If the threshold value is reached, a SAT entry may be written, a message DMS0693 issued on the console and the task terminated abnormally.

Values: 0 ... 15.728.639 

PWPENTI (privileged, dynamically changeable, A/1)

Specifies whether the detection of an invalid password entry results in a penalty (with the duration of the penalty being specified in seconds). PWPENTI is used when checking file, job variable and crypto passwords; in the case of file accesses and crypto passwords, the number of invalid entries is also of importance.

The following penalties are imposed in the event of invalid password entries:

Crypto:	(PWPENTI) * number of invalid attempts (seconds)
Files:	(PWPENTI) * number of invalid attempts (seconds)
JV's:	(PWPENTI) (in seconds)

If the default value 0 is specified, no penalty is imposed.

Values: 0 ... 60

RDTESTPR (nonprivileged, dynamically changeable, A/1)

Limits the read test privileges on a global basis. This maximum value must be observed in addition to the user ID-specific test values.

Values: 0 ... 9 

RECONUC (privileged, C/1)

Specifies the systems support default value for the reconstruction request to the user catalog.
In the case of a FAST or AUTOMATIC startup, reconstruction is performed automatically, i.e. without operator intervention. In the case of a DIALOG startup, the default value can be changed by the operator (message NSI6010).
TSOS can inquire which type of reconstruction is to be performed by issuing the command /SHOW-SYSTEM-PARAMETERS PAR=RECONUC after “System ready”.

N	The user catalog remains unchanged.
B	The user catalog is reconstructed. A new user catalog is created based on the contents of the $TSOS.SYSSRPM.BACKUP file.
T	The user catalog is reconstructed. A new user catalog is generated, containing only those users who also have an entry in the $TSOS.TSOSCAT file. If there are also user attributes for these users in the $TSOS.SYSSRPM.BACKUP file, these are added to the new entries.
A	The user catalog is reconstructed. A new user catalog is created based on the contents of the $TSOS.SYSSRPM.BACKUP and $TSOS.TSOSCAT files. It contains entries for all users who are recorded in at least one of the two files. If they exist, the user attributes are taken from the $TSOS.SYSSRPM.BACKUP file, otherwise a default user entry is created and the affected IDs are locked.
R	The user catalog is reset. A new user catalog is created containing only those users entered to the $TSOS.TSOSCAT file. All users contain default attributes, and all IDs except for TSOS are locked.

SDPINTLN (nonprivileged, dynamically changeable, A/1)

Reserved system parameter for future functions.

SECSTART (nonprivileged, C/1)

Activates or deactivates the secure system start. If it is activated, the session-specific logging files SYSAUDIT.SYS.REPLOG... from the previous sessions are not deleted automatically. If there is a message buffer overflow, system initialization is aborted. Outputs to consoles, if issued by system components, are identified by # in front of the time-of-day display.

Values: N / Y

SECSTENF (nonprivileged, C/1)

System initialization is aborted if REPs cannot be logged completely. (SECSTENF: SECSTART ENFORCEMENT)

Values: N / Y 

SHUTARCH (nonprivileged, dynamically changeable, C/1)

After entry of the SHUTDOWN command, a check is to be carried out as to whether the ARCHIVE subsystem is still in use.

N	No check is carried out, and SHUTDOWN is initiated immediately.
Y	A check is carried out; if ARCHIVE is still in use, the operator is asked whether SHUTDOWN should nevertheless be executed.

The VM2000 command SHUTDOWN-VM ignores this parameter. SHUTARCH=N applies here for the monitor system and all guest systems. 

SHUTCTL (privileged, dynamically changeable, A/1)

Specifies the maximum wait time in minutes that the system is to wait after entry of the SHUTDOWN command for the termination of user jobs. Jobs which cannot be terminated within this period, are ended by means of the FORCE-JOB-CANCEL command.

0	The wait time is a maximum of 30 seconds.
n	The wait time is a maximum of n minutes (1 <= n <= 60).

The actual time required to terminate the jobs is system-specific and depends on the following factors:

• Hardware configuration (e.g. number and performance of CPUs and IOPs, performance of the periphery and bus system)

• Software configuration (e.g. CPU quota for guest systems in VM2000 operation, active subsystems at shutdown time, use of HIPLEX MSCF and number of clusters)

• Customer-specific factors (e.g. number and context of the user task at shutdown time)

SHUTPROC (nonprivileged, dynamically changeable, C/15)

Defines the procedure in the event of a shutdown on request by the SE manager on SE servers.

BY-SHUTDOWN-CMD	System shutdown is initiated immediately.
BY-ENTER-JOB	The system is shut down by the enter job $TSOS.SYSENT.SHUTDOWN.

SNAPTIME (privileged, dynamically changeable, A/2)

Specifies the maximum duration of the interruption of BS2000 by the SNAP dump function (in seconds).

Values: 8 ... 24

SSMAPRI (privileged, dynamically changeable, A/4)

Primary allocation in PAM blocks for the system files S.OUT.tsn.yyyy-mm-dd.hhmmss.cnt and S.LST.tsn.yyyy-mm-dd.hhmmss.cnt (cnt: 4-digit counter) and for reassigned system files if the file concerned was created by means of an ASSIGN-<sysfile> command.

Values: 3 ... 24 ... 65535

SSMASEC (privileged, dynamically changeable, A/4)

Secondary allocation in PAM blocks for the system files S.OUT.tsn.yyyy-mmdd.hhmmss.cnt
and S.LST.tsn.yyyy-mm-dd.hhmmss.cnt (cnt: 4-digit counter) and for reassigned system files if the file concerned was created by means of an ASSIGN-<sysfile> command.

Values: 3 ... 24 ... 65535 

SSMCOPT (privileged, dynamically changeable, C/1)

The continuation character “-” (hyphen) can be given in commands, columns 2-72.

N	The continuation character must be entered in column 72.
Y	The continuation character can be entered in columns 2-72.

SSMLGOF1 (nonprivileged, C/9)

Determines how SPOOLOUT jobs from SYSOUT or SYSLST files are treated at LOGOFF, depending on the SPOOL status.

REQ-SPOOL	SPOOLOUT jobs from system files are always accepted. If SPOOL is not loaded, the jobs wait until SPOOL READY.
NO-SPOOL	In batch mode LOGOFF NOSPOOL is always simulated, i.e. no SPOOLOUT jobs are accepted. In interactive mode, the value of SSMLGOF2 is checked, see SSMLGOF2.
STA-SPOOL	If SPOOL is loaded, the SPOOLOUT jobs are accepted. If SPOOL is not loaded, batch mode is simulated in LOGOFF NOSPOOL. In interactive mode, the value of SSMLGOF2 is checked, see SSMLGOF2.

SSMLGOF2 (nonprivileged, C/5)

In the case of LOGOFF in interactive mode, defines how the SPOOLOUT job is handled for SYSLST when SSMLGOF1=NO-SPOOL / STA-SPOOL.

NO	The SPOOLOUT job is ignored.
YES	Depending on the SPOOL status, the interactive user receives one of the following messages from SPOOL: SPOOL is not loaded: SSM2066 The interactive user can specify whether to wail until SPOOL is loaded or whether the SPOOLOUT request is to be ignored. SPOOL is loaded: SSM2075 The interactive user can specify whether the SPOOLOUT job is to be executed or ignored.
SPOOL	If SPOOL is loaded, the SPOOLOUT job is accepted. If SPOOL is not loaded, the interactive user receives message SSM2066 and can specify whether to wait until SPOOL is loaded or whether the SPOOLOUT request is to be ignored.

SSMMILOG (privileged, dynamically changeable, C/1)

Specifies whether the output records are additionally written into a file when SYSLST or SYSOUT is assigned to a PLAM library element.

N	Output records are not copied.
Y	In each assignment of SYSLST or SYSOUT to a PLAM library element, a file is generated as a copy and each output record is also written into that file. The copy is assigned the name S.LST.lib.elem.tsn.counter or S.OUT.lib.elem.tsn.counter
	lib:	die ersten 7 Zeichen der PLAM-Bibliothek
	elem:	die ersten 7 Zeichen des Elements
	tsn:	TSN der Task, 4 Zeichen
	counter:	Zähler, 4-stellig

SSMOUT (nonprivileged, dynamically changeable, C/5)

Specifies the default value of the system output for the ENTER-PROCEDURE, EXIT-JOB, LOGOFF and CANCEL-JOB commands. In a computer network SSMOUT is evaluated on the target computer.

PRINT	System output is processed via SPOOL.
MAIL	System output is sent by email to the recipient addresses (EMAIL-ADDRESS) entered in the user ID’s user entry. If they cannot be sent, the same procedure is used as for PRINT.

SSMPNOQ (privileged, dynamically changeable, C/3)

Specifies whether primary SYSFILE files are to be counted toward the user quota for temporary files (TEMP-SPACE-LIMIT).

YES	Primary SYSFILE files are not counted toward the user quota (compatible mode).
NO	Primary SYSFILE files are treated as temporary files and the pubset limit of the user is checked. If the limit has been reached, further proceeding follows the settings in the SSMSDEVB and SSMSDEVD system parameters.

SSMSDEVB (privileged, dynamically changeable, C/8)

Defines the device type when switching from disk to tape for a batch task.

*DUMMY  Proceed without logging.

Value: TAPE / *DUMMY / tape device type (depending on installation), max. 8 characters

SSMSDEVD (privileged, dynamically changeable, C/8)

Defines the device type when switching from disk to tape when M=mtc is entered in response to messages SSM2035, SSM2078 or SSM3060 (insufficient disk space).

Value: TAPE-C4 / tape device type (depending on installation), max. 8 characters

STUPTYPE (privileged, C/1)

Specifies the systems support default value for the reconstruction request to the user catalog.
In the case of a FAST or AUTOMATIC startup, the corresponding system startup is performed automatically, i.e. only STUPTYPE=S requires operator intervention.
In the case of a DIALOG startup, the default value can be changed by the operator (message NSI6005).
The operator can inquire which type of reconstruction has been performed by issuing the /SHOW-SYSTEM-PARAMETERS PAR=STUPTYPE command.

W	Warm start
C	Cold start
J	First start with resetting of the user catalog. The user catalog, JMS job queue and TSN file are all reset.
S	Selective startup
T	First start with resetting of the TSN file The JMS job queue and TSN file are all reset.
Z	Zip start

SVC79 (nonprivileged, A/4)

The applicability of SVC79 (switch from the user status to the privileged system status) can be restricted.

0	SVC79 may only be performed by tasks running under the user ID TSOS or SERVICE. The first SVC79 of a program is indicated by an appropriate message on the console.
1	The operator must confirm the switch for the first SVC79 of a program. Furthermore, only TSOS tasks and SERVICE tasks may issue this SVC.
2	SVC79 can only be used by tasks running under the SERVICE user ID. In addition, the operator has to confirm the switch.
3	It is not possible to switch from the user status to the privileged system status.

SYSGBSIZ (privileged, A/4)

Buffer size for terminals (in bytes).

The buffer size can be defined individually for each terminal by means of the SETBF macro.

Values: 256 ... 2048

SYSGJASL (privileged, dynamically changeable, A/4)

Default value for the ADDRESS-SPACE-LIMIT operand in the ADD-USER command (user space for a task under this user ID).

Values: 1 ... 16 ... 2147483647 Mbyte

SYSGJCLA (privileged, A/2)

Specifies the default value for the SPOOLOUT-CLASS operand in the ADD-USER command (SPOOLOUT class).

0	No spoolout class for this user ID / account number.
1 ... 255	The specified spoolout class is assigned to the user ID / account number.

SYSGJCPU (privileged, dynamically changeable, A/4)

Default value for the CPU-LIMIT operand in the ADD-USER command (total runtime for user ID / account number).

Values: 0 ... 65535 ... 2147483647 seconds

SYSGJPRI (privileged, dynamically changeable, A/2)

Default value for the MAXIMUM-RUN-PRIORITY operand in the ADD-USER command.

Values: 1 ... 255 

SYSTHOOK (privileged, C/3)

NO	The Systemhook commands ADD-SYSTEM-HOOK and MODIFY-SYSTEM-HOOK-PROCESSING are forbidden; all others are permitted.
YES	All Systemhook commands are permitted.

SYSVECT (privileged, A/2)

Size of system vector in pages (global storage area for system exit routines).

Values: 0 ... 15

TASKVECT (privileged, A/2)

Size of task vector in pages (local storage area for system exit routines).

Values: 0 ... 15

TCHOFLO (privileged, dynamically changeable, C/5)

Default value for the type of overflow control for terminals (corresponds to the MODIFY-TERMINAL-OPTIONS command)

ACK (=USER-ACKNOWLEDGE)	Overflow control by user acknowledgment.
TIMER (=TIMEOUT)	Overflow control by timer (6 seconds)
NO (=NO-CONTROL)	No overflow control.

TCHREAD (privileged, dynamically changeable, C/5)

Default value for the operating mode for terminals, corresponding to the command MODIFY-TERMINAL-OPTIONS, operand WRITE-READ-MODE= ... .

MODIF (=MODIFIED-FIELDS)	Reads modified fields.
UNPRO (=NO-FIELDS)	Reads unprotected fields.

TCHTACK (privileged, dynamically changeable, C/3)

Default value for the acknowledgment procedure for outputs to terminals, corresponding to the command MODIFY-TERMINAL-OPTIONS, operand ACKNOWLEDGE-OUTPUT= ... .

NO	Acknowledgment procedure switched off.
YES	Acknowledgment procedure switched on.

TEMPFILE (nonprivileged, C/2)

Special character which must be added as a prefix to the file or job variable name in temporary files and job variables.

NO	The system supports no temporary files and job variables.
special character (# or @)	Files and JVs generated with the prefixed special character are temporary and are given the name: S.sysid.nnnn.filename or S.sysid.nnnn.jvname (sysid = SYS-ID of the home pubset nnnn = TSN of the generating job). They are deleted automatically when the LOGOFF command is issued.

The temporary file names may change in a subsequent BS2000 version. They do not represent a system interface.

VMGIORAL (privileged, dynamically changeable, C/3)

Specifies if a VM2000 global detach device command (DETACH-DEVICE or REMOVE-DEVICE-CONNECTION command with SCOPE=*VM2000-GLOBAL) can be executed in the guest system.

YES	Detach command may be executed.
NO	Detach command may not be executed

VSEQPRI (privileged, C/1)

When tapes are requested the specification of the file name/file section number has priority over the VSN specification.

0	VSN specification has priority.
1	File name / file section number has priority. If VSEQPRI has the value 1, the VSN can be omitted when importing a tape file (FILE macro with STATE=FOREIGN) and a different VSN from the one entered in the file catalog can be assigned (e.g. the VSN of the backup copy) when processing a cataloged tape file.

WRTESTPR (nonprivileged, dynamically changeable, A/1)

Limits the write test privilege on a global basis. This maximum value must be observed in addition to the user ID-specific test values.

Values: 0 ... 9