Retrieve System Values (QWCRSVAL) API

The Retrieve System Values (QWCRSVAL) API lets you retrieve system values.

Authorities and Locks

You must have either all object (*ALLOBJ) or audit (*AUDIT) special authority to retrieve the values for QAUDCTL, QAUDENDACN, QAUDFRCLVL, QAUDLVL, QAUDLVL2, and QCRTOBJAUD.

Required Parameter Group

Receiver variable

OUTPUT; CHAR(*)

The variable that is to receive the information requested. For the format, see Format of Data Returned.

Length of receiver variable

INPUT; BINARY(4)

The length of the receiver variable described in the Format of Data Returned. If the length is larger than the size of the receiver variable, the results may not be predictable. The minimum length is 28 bytes.

Number of system values to retrieve

INPUT; BINARY(4)

The total number of system values to retrieve.

System value names

INPUT; ARRAY(*) of CHAR(10)

The names of the system values to be retrieved. This can be a list of system value names where each name is 10 characters.

Error code

I/O; CHAR(*)

The structure in which to return error information. For the format of the structure, see Error code parameter.

Format of Data Returned

The receiver variable holds the information returned about each system value.

The receiver variable has three logical parts:

1. The first field specifies the number of system values returned.
2. The next fields give the offsets to the system values returned. There is one offset field for each system value returned.
3. Next are the system value information tables for the system values returned. There is one system value information table for each system value.

The following table shows the format of the receiver variable. The offset fields are repeated until the offsets for all the system values returned are listed; the system value information table for each system value is repeated in the same way. For a detailed description of each field, see the Field Descriptions.

To determine the length of the receiver variable, the following calculation should be done. For each system value to be returned, get the length of the data returned for the system value and add 24. After adding the lengths for each system value, add 4. This calculation takes into account the data alignment that needs to be done; therefore, this value is a worst-case estimate. If the calculated length is less than what is needed to return all the system value information, then the value of the Number of system values returned field will match the actual number of system values returned. The system value information for the system values that won't fit will not be returned. For example, if a request is made to return information about 1 system value, and that information will not fit, then the Number of system values returned field will be 0 and there will be no information returned in the System value information table field.

System Value Information Table

The following table shows the format of the system value information table.

Field Descriptions

Data. The data returned for the system value.

Information status. Whether the information was available for the system value.

Offset to system values information table. The offset from the beginning of the structure to the start of the system value information.

Length of data. The length of the data returned for the system value. If the information was not available, the length will be zero.

System value. The system value to be retrieved. See Valid System Values for the list of valid system values.

Number of system values returned. The number of system values returned to the application.

Type of data. The type of data returned.

Valid System Values

For a detailed description of each field, see System Value Field Descriptions. To find more detailed information about each system value, see the System values topic collection.

System Value Field Descriptions

Accounting level. QACGLVL is the accounting level. The possible values are:

Active jobs. QACTJOB is the initial number of active jobs for which auxiliary storage is to be allocated during IPL.

Additional active jobs. QADLACTJ specifies the additional number of active jobs for which auxiliary storage is to be allocated. Auxiliary storage is allocated whenever the number of active jobs exceeds the number for which storage has already been allocated.

Additional storage. QADLSPLA specifies the additional storage to add to the spooling control block.

Additional total jobs. QADLTOTJ specifies the additional number of jobs for which auxiliary storage is to be allocated. Auxiliary storage is allocated whenever the number of jobs in the system exceeds the number for which storage has already been allocated.

Allow jobs to be interrupted. QALWJOBITP specifies how the system responds to user initiated requests to interrupt a job to run a user-defined exit program in that job. The Call Job Interrupt Program (QWCJBITP) API contains information about using job interrupt exit programs. The Change Job Interrupt Status (QWCCJITP) API contains information about retrieving and changing the interrupt status of a job. The interrupt status of an active job can be changed at any time but will only take effect when the value of QALWJOBITP allows jobs to be interrupted. The possible values are:

Allow object restore options. QALWOBJRST specifies a list of security options that are used when restoring objects to the system.

Allow user domain. QALWUSRDMN is the allow user domain system value. It specifies a list of library names that can contain user domain objects.

Assistance level. QASTLVL is the assistance level system value. The value specifies the level of assistance available to users of the system.

Attention program. QATNPGM is the attention program system value. The first 10 characters contain the program name and the last 10 characters contain the library name. The following special values are allowed:

Auditing control. The QAUDCTL system value is the on/off switch for object- and user-level auditing. The values allowed are:

Auditing end action. The QAUDENDACN system value indicates the action to be taken if auditing data cannot be written to the security auditing journal. These are the allowable values for the QAUDENDACN system value:

Auditing force level. The QAUDFRCLVL system value indicates to the system the number of auditing journal entries written to the security auditing journal before the auditing data is written to auxiliary storage. The following values are allowed:

Auditing level. QAUDLVL is the security auditing level. This system value controls the level of action auditing on the system.

If the QAUDLVL system value contains the value *AUDLVL2, then the values in the QAUDLVL2 system value will also be used. If the QAUDLVL system value does not contain the value *AUDLVL2, then the values in the QAUDLVL2 will be ignored.

The values allowed are:

Auditing level extension. QAUDLVL2 is the security auditing level extension. This system value is required when more than sixteen auditing values are needed. Specifying *AUDLVL2 as one of the values in the QAUDLVL system value will cause the system to also look for auditing values in the QAUDLVL2 system value.

If the QAUDLVL system value contains the value *AUDLVL2, then the values in the QAUDLVL2 system value will also be used. If the QAUDLVL system value does not contain the value *AUDLVL2, then the values in the QAUDLVL2 will be ignored.

The values allowed are:

Automatic configuration for remote controllers. QAUTORMT allows the configuration of remote controllers. The possible values are:

Automatic configuration for virtual device. QAUTOVRT is the system value for automatic configuration of virtual devices. This is the number of virtual devices that the user wants to have automatically configured. The possible values are:

Automatic configuration indicator. The QAUTOCFG system value automatically configures devices. The value specifies whether devices that are added to the system are configured automatically.

Automatic IPL date and time. QIPLDATTIM is the system value for the date and time to automatically do an IPL of the system. It specifies a date and time when an automatic IPL should occur. The special value *NONE indicates that no timed automatic IPL is desired. The format of the field returned is CYYMMDDHHMMSS, where C is the century, YY is the year, MM is the month, DD is the day, HH is the hour, MM is the minute, and SS is the second. A 0 for the century flag indicates years 19xx, and a 1 indicates years 20xx.

Automatic system disabled reporting. The QAUTOSPRPT system value controls the automatic problem reporting ability. The value allows the system to automatically report a problem. The possible values are:

Auxiliary storage lower limit. QSTGLOWLMT is the percentage (in 10 thousandths) of the system auxiliary storage pool that remains available when the critical storage lower limit is reached. For example, a value of 50000 in binary would be 5.0000.

Auxiliary storage lower limit action. QSTGLOWACN is the action taken when the auxiliary storage lower limit (QSTGLOWLMT system value) is reached. The possible actions are:

Base activity level. QBASACTLVL is the base-storage-pool activity level. This value indicates how many system and user jobs can compete at the same time for storage in the base storage pool.

Base pool minimum size. QBASPOOL is the minimum size of the base storage pool. The base pool contains all main storage not allocated by other pools. QBASPOOL is specified in kilobytes.

Block password change. QPWDCHGBLK specifies the time period during which a password is blocked from being changed following the prior successful password change operation. This system value does not restrict password changes made by the Change User Profile (CHGUSRPRF) command. The possible values are:

Book and bookshelf search path. QBOOKPATH specifies which directories should be searched for books.

Century indicator. QCENTURY specifies the century value for the system date. The possible values are:

Character identifier control. QCHRIDCTL specifies the character identifier control for the job. This attribute controls the type of CCSID conversion that occurs for display files, printer files, and panel groups. The *CHRIDCTL special value must be specified on the CHRID command parameter on the create, change, or override command for display files, printer files, and panel groups before this attribute will be used. The possible values are:

Character set and code page. QCHRID is the default character set and code page. The QCHRID system value is retrieved as a single character value; the first 10 characters contain the character set identifier right-justified. For example, the value 101 would be retrieved as 0000000101. The last 10 characters contain the code page identifier right-justified. For example, the value 37 would be retrieved as 0000000037.

Coded character set identifier. QCCSID is the system value for coded character set identifiers.

Communication arbiters. QCMNARB specifies the number of communication arbiter jobs. The possible values are:

Communications recovery limit. QCMNRCYLMT is the system value for communications recovery limits. The QCMNRCYLMT system value is retrieved as a 20-character value; the first 10 characters contain the count limit right-justified. For example, the value 7 would be retrieved as 0000000007. The last 10 characters contain the time interval right-justified. For example, the value 117 would be retrieved as 0000000117.

Configuration message queue. QCFGMSGQ is the configuration message queue system value. This message queue can be used to receive messages associated with configuration objects, such as lines and controllers. The first 10 characters contain the message queue name and the last 10 characters contain the library name.

Console name. QCONSOLE is the console name. This value specifies the name of the display device that is the console.

Controlling subsystem. QCTLSBSD is the controlling subsystem description. The controlling subsystem is the first subsystem to start after an IPL. The value of QCTLSBSD is a 20-character list of up to two 10-character values in which the first is the subsystem description name and the second is the library name.

Coordinated universal time offset. QUTCOFFSET is the system value indicating the difference in hours and minutes between Coordinated Universal Time (UTC), also known as Greenwich mean time, and the current local system time.

• +hhmm means that the current system time is hh hours and mm minutes ahead of UTC.
• -hhmm means that the current system time is hh hours and mm minutes behind UTC.

Country or region identifier. QCNTRYID is the system value for the country or region identifier. This value specifies the country or region identifier to be used as the default on the system.

Create authority. QCRTAUT is the create authority system value. This value allows the default public authority for the create (CRTxxx) commands to be set system-wide. The values allowed are:

Create object auditing. The QCRTOBJAUD system value indicates the default auditing value for new objects created into a library or directory on the system. These are the allowable values for the QCRTOBJAUD system value.

Currency symbol. QCURSYM is the system value for the currency symbol. QCURSYM can be any character except blank, hyphen (-), ampersand (&), asterisk (*), or zero (0).

Database file statistics collection. QDBFSTCCOL is the system value that specifies the type of statistic collection requests that will be allowed to be processed in the background by the database statistics system job, QDBFSTCCOL. Statistic collections which are requested by either a user or automatically by the database manager to be processed in the foreground are not affected by this system value. The values for QDBFSTCCOL can be:

Database recovery wait. QDBRCVYWT is the database recovery wait indicator. QDBRCVYWT can be:

Date format. QDATFMT is the system date format. This system value can be YMD, MDY, DMY, or JUL (Julian format), where Y equals year, M equals month, and D equals day.

Date separator. QDATSEP is the character separator for dates. QDATSEP can be slash (/), hyphen (-), period (.), comma (,), or blank.

Day. QDAY is the system value for the day of the month or year (if the date format is Julian). For Julian dates only, QDAY is a 3-character value (001 through 366).

Day of the week. QDAYOFWEEK specifies the day of the week. The possible values are:

Days password valid. QPWDEXPITV is the system value for the password expiration interval. It controls the number of days that passwords are valid by keeping track of the number of days since you changed your password or created a user profile. The possible values are:

DBCS installed. QIGC is the DBCS version indicator. This value specifies if the DBCS version of the system is installed. QIGC can be:

Decimal format. QDECFMT is the decimal format. QDECFMT must be one of the following characters:

Device naming convention. QDEVNAMING is the device naming convention. This value specifies what naming convention is used when the system automatically creates device descriptions. QDEVNAMING must be one of the following values:

Device recovery action. QDEVRCYACN specifies what action to take when an I/O error occurs for an interactive job's work station. The values for QDEVRCYACN are:

Disconnect job interval. QDSCJOBITV indicates the length of time, in minutes, an interactive job can be disconnected before it is ended. The values for QDSCJOBITV are:

Double-byte coded font name. QIGCCDEFNT is the system value for the double-byte coded font name. QIGCCDEFNT is a 20-character list of up to two values in which the first 10 characters contain the coded font name and the last 10 characters contain the library name. *NONE means no coded font is identified to the system.

Double-byte coded font point size. QIGCFNTSIZ is the system value for the double-byte coded font point size. The values for QIGCFNTSIZ are:

Duplicate password. QPWDRQDDIF controls duplicate passwords. The possible values are:

Dynamic priority adjustment. The QDYNPTYADJ system value controls the dynamic priority adjustment. Possible values are as follows:

Dynamic priority scheduler. The QDYNPTYSCD system value controls the dynamic priority scheduler algorithm. The value allows the use of the dynamic priority scheduler. Possible values are as follows:

End job limit. The QENDJOBLMT system value is the maximum time for application clean up during immediate ending of a job. QENDJOBLMT is numeric and is specified in seconds.

Force conversion on restore. QFRCCVNRST is the system value that allows you to specify whether or not to convert the following object types during a restore:  program (*PGM), service program (*SRVPGM), SQL package (*SQLPKG), and module (*MODULE). The possible values for QFRCCVNRST are as follows:

Any object that should be converted but cannot be converted will not be restored.

History log size. QHSTLOGSIZ is the maximum number of records for each version of the history log. The following values are returned:

Hour. QHOUR is the system value for the hour of the day. Hours are based on a 24-hour clock. Its value can range from 00 through 23.

Inactive job time-out. QINACTITV specifies the inactive job time-out interval in minutes. It specifies when the system takes action on inactive interactive jobs. QINACTITV must be one of the following values:

Inactive message queue. QINACTMSGQ is the system value for the inactive message queue. QINACTMSGQ is a 20-character list of up to two 10-character values where the first is the message queue name and the second is the library name. The following special values are allowed.

Initial spooling size. QJOBSPLA specifies the initial size of the spooling control block for a job.

IPL action with console problem. QSCPFCONS is the IPL action with a console problem indicator. This value specifies whether the IPL is to continue unattended or ends when the console is not operational when performing an attended IPL. QSCPFCONS can be:

IPL status. QIPLSTS is the IPL status indicator. This value indicates what form of IPL has occurred.

IPL type. QIPLTYPE indicates the type of IPL to perform. This value specifies the type of IPL performed when the system is powered on manually with the key in the normal position. QIPLTYPE can be:

Job log output. QLOGOUTPUT specifies how the job log will be produced when a job completes. This does not affect job logs produced when the message queue is full and the job message queue full action specifies *PRTWRAP. Messages in the job message queue are written to a spooled file, from which the job log can be printed, unless the Control Job Log Output (QMHCTLJL) API was used in the job to specify that the messages in the job log are to be written to a database file.

The job log output value can be changed at any time until the job log has been produced or removed. To change the job log output value for a job, use the Change Job (QWTCHGJB) API or the Change Job (CHGJOB) command.

The job log can be displayed at any time until the job log has been produced or removed. To display the job log, use the Display Job Log (DSPJOBLOG) command.

The job log can be removed when the job has completed and the job log has not yet been produced or removed. To remove the job log, use the Remove Pending Job Log (QWTRMVJL) API or the End Job (ENDJOB) command.

The possible values are:

Job message queue full. QJOBMSGQFL specifies if the job message queue should be allowed to wrap.

Job message queue initial size. QJOBMSGQSZ specifies the initial size of the job message queue. QJOBMSGQSZ is numeric and is specified in kilobytes.

Job message queue maximum size. QJOBMSGQMX specifies the maximum size of the job message queue. QJOBMSGQMX is numeric and is specified in megabytes.

Keyboard buffer. QKBDBUF specifies whether the type-ahead feature and Attention key buffering option should be used.

Keyboard type. QKBDTYPE specifies the language character set for the keyboard.

Language identifier. QLANGID is the system value for the language identifier. This system value specifies the language identifier to be used as the default for the system.

Leap year adjustment. QLEAPADJ is the system value for leap year adjustment. It is used to adjust the system calendar algorithm for the leap year in different calendar systems.

Library locking level. The QLIBLCKLVL system value controls whether libraries in a job's library search list are locked by that job. The *SHRRD locks prevent other jobs from deleting or renaming the libraries. System jobs, subsystem monitor jobs, and secondary threads do not lock libraries in their library search list. A change to this system value takes effect for all jobs that become active after the change. The shipped value is 1. The possible values are as follows:

Limit adjacent digits. QPWDLMTAJC limits adjacent digits in a password. It specifies whether adjacent digits are allowed in passwords. The possible values are:

Note: This system value is ignored if the QPWDRULES system value specifies any value other than *PWDSYSVAL.

Limit character positions. QPWDPOSDIF controls the position of characters in a new password. This prevents the user from specifying the same character in a password corresponding to the same position in the previous password.

A change to this system value takes effect the next time a password is changed. The shipped value is 0.

Note: This system value is ignored if the QPWDRULES system value specifies any value other than *PWDSYSVAL.

Limit characters. QPWDLMTCHR limits the use of certain characters in a password. The possible values are:

Note: This system value is ignored if the system is operating at QPWDLVL (password level) 2 or 3.

Note: This system value is ignored if the QPWDRULES system value specifies any value other than *PWDSYSVAL.

Limit device session. QLMTDEVSSN is the system value for limiting device sessions. It controls the number of device sessions a user can sign-on.

Limit repeat characters. QPWDLMTREP limits the use of repeating characters in a password. The possible values are:

Note: This system value is ignored if the QPWDRULES system value specifies any value other than *PWDSYSVAL.

Limit security officer. QLMTSECOFR is the system value for limiting QSECOFR device access. It controls whether users with *ALLOBJ or *SERVICE special authority need explicit authority to specific work stations. The possible values are:

Locale path name. The QLOCALE system value specifies the locale object that is to be used. The possible values include a valid path name or one of the following special values:

The locale name is returned in UCS-2 in the following format:

Note: If the locale name is either the special value *C or *POSIX, a length of 1 is returned. If *NONE is specified, a length of 0 is returned. These values are returned in the default CCSID of the job.

Machine pool size. QMCHPOOL is the size of the machine storage pool. The machine storage pool contains shared machine and IBM^® i licensed programs. QMCHPOOL is specified in kilobytes.

Maximum activity level. QMAXACTLVL is the maximum activity level of the system. This is the number of jobs that can compete at the same time for main storage and processor resources.

Maximum number of jobs. QMAXJOB specifies the maximum number of jobs allowed on the system.

Maximum password length. QPWDMAXLEN specifies the maximum length of a password. It controls the maximum number of characters in a password. The possible values are:

Note: This system value is ignored if the QPWDRULES system value specifies any value other than *PWDSYSVAL.

Maximum job message queue initial size. QJOBMSGQTL is the maximum initial size of the job message queue. QJOBMSGQTL is numeric and is specified in kilobytes.

Maximum not valid sign-on. QMAXSIGN specifies the maximum number of incorrect sign-on attempts allowed. The possible values are:

Maximum sign-on action. QMAXSGNACN specifies the maximum sign-on attempts action or how the system reacts when the maximum number of consecutive incorrect sign-on attempts (the system value QMAXSIGN) is reached. The possible values are:

Maximum spooled files per job. QMAXSPLF specifies the maximum number of spooled files that can be created per job. A job can have more than the maximum number of spooled files specified by this system value if the spooled files existed before the system value was set to a lower number.

Minimum password length. QPWDMINLEN specifies the minimum length of a password. It controls the minimum number of characters in a password. The possible values are:

Note: This system value is ignored if the QPWDRULES system value specifies any value other than *PWDSYSVAL.

Minute. QMINUTE is the system value for the minute of the hour. Its value can range from 00 through 59.

Month. QMONTH is the system value for the month of the year. It will be blank if the date format specified in system value QDATFMT is Julian (JUL). Its value can range from 1 through 12.

Multithreaded job action. QMLTTHDACN is the system value for multithreaded job action. This value controls the action to be taken when a function that may not be threadsafe is called in a multithreaded job. The possible values are:

Parallel processing degree. QQRYDEGREE specifies the parallel processing option, which will also determine the types of parallel processing allowed. There are two types of parallel processing: input/output (I/O) parallel processing and symmetric multiprocessing (SMP). With I/O parallel processing, the database manager can use multiple tasks for each query to do the I/O processing. The central processing unit (CPU) processing will still be done serially. With SMP the CPU and I/O processing is assigned to tasks that run the query in parallel. Actual CPU parallelism requires a system with multiple processors. SMP parallelism can only be used if the system feature DB2^® Symmetric Multiprocessing for IBM^® i is installed.

Pass-through servers. QPASTHRSVR specifies the number of target display station pass-through server jobs that are available to process the System i display station pass-through, IBM i Access workstation function (WSF), and other 5250 emulation programs on programmable workstations. The possible values are:

Password expiration warning. QPWDEXPWRN controls the number of days prior to a password expiring to begin displaying password expiration warning messages on the Sign-on Information display. The possible values are:

Password level. QPWDLVL specifies the level of password support on the system. The possible values are:

Note: If this system value has been changed since the last IPL, this value is not the password level the system is currently using. This value will be in effect after the next IPL.

Password rules. QPWDRULES specifies the rules used to check whether a password is formed correctly. The possible values are:

Password validation program. QPWDVLDPGM provides the ability for a user-written program to do additional validation on passwords. The possible values are:

Password validation program. QPWDVLDPGM provides the ability for a user-written program to do additional validation on passwords. The first 10 characters contain the name of the program and the last 10 characters contain the library name. *NONE means a validation program is not used.

Performance adjustment. QPFRADJ indicates whether the system should adjust values during IPL and dynamically for system pool sizes and activity levels.

Position characters. QPWDPOSDIF controls the position of characters in a new password. This prevents the user from specifying the same character in a password corresponding to the same position in the previous password. The possible values are:

Power down limit. QPWRDWNLMT is the maximum amount of time an immediate power down can take before processing is ended (abnormal end).

Power restore IPL. QPWRRSTIPL specifies whether the system should automatically do an IPL when utility power is restored after a power failure. The possible values are:

Previous end of system indicator. QABNORMSW is the previous end of system indicator. The possible values are:

Print key format. QPRTKEYFMT specifies whether border and header information is provided when the Print key is pressed. The possible values are:

Print text. QPRTTXT is the print text. This system value is used to print up to 30 characters of text on the bottom of listings and separator pages.

Printer device. QPRTDEV is the default printer device description. This value specifies the default printer for the system.

Problem filter. QPRBFTR specifies the name of the filter object that the service activity manager uses when processing problems. QPRBFTR is a 20-character list of up to two 10-character values in which the first value is the problem filter name and the second is the library name. *NONE means no problem filter is in use.

Problem hold interval. QPRBHLDITV allows you to specify the minimum number of days a problem is kept in the problem log. After this time interval, the problem can be deleted using the Delete Problem (DLTPRB) command. The time interval starts as soon as it is put into the log.

Processor feature. QPRCFEAT is the processor feature. It is the processor feature-code level of the system.

Processor multitasking. The QPRCMLTTSK system value controls processor multitasking. Possible values are as follows:

Query processing time limit. QQRYTIMLMT specifies a limit that is compared to the estimated number of elapsed seconds that a query requires to run in order to determine if a database query is allowed to start.

Reclaim spool storage. QRCLSPLSTG is reclaim spool storage system value. It allows for the automatic removal of empty spool database members. The values allowed are:

Remote service attribute. The QRMTSRVATR system value controls the remote service problem analysis ability. The value allows the system to be analyzed from a remote system. The values for QRMTSRVATR are as follows:

Remote IPL. QRMTIPL is the remote power on and IPL indicator. This value specifies if remote power on and IPL can be started over a telephone line. The possible values are:

Remote sign-on. QRMTSIGN specifies how the system handles remote sign-on requests. The user can specify a program and library to decide which remote sessions will be allowed and which user profiles can be automatically signed on from which locations. The first 10 characters contain the program name, and the last 10 characters contain the library name. QRMTSIGN can have the following values:

Required password digits. QPWDRQDDGT specifies whether a digit is required in a new password. The possible values are:

Note: This system value is ignored if the QPWDRULES system value specifies any value other than *PWDSYSVAL.

Retain server security data. QRETSVRSEC specifies whether security-related information for IBM-provided client/server applications is retained. The possible values are:

Save access paths. The QSAVACCPTH system value specifies whether to save logical file access paths that are dependent on the physical files that are being saved. The possible values are:

Scan file systems. The QSCANFS system value specifies the integrated file systems in which objects will be scanned when exit programs are registered with any of the integrated file system scan-related exit points. For more information about the integrated file system scan-related exit points, see the Integrated file system topic collection. The values allowed are:

Scan file systems control. The QSCANFSCTL system value controls the integrated file system scanning on the system when exit programs are registered with any of the integrated file system scan-related exit points. These controls apply to integrated file system objects in file systems covered by the QSCANFS (Scan file systems) system value. For more information about the integrated file system scan-related exit points, see the Integrated file system information in the Files and file systems topic. The values allowed are:

Second. QSECOND is the system value for the second of the minute. Its value can range from 00 through 59.

Secure sockets layer (SSL) cipher specification list. QSSLCSL specifies the list of cipher suites that are supported by System SSL. The values allowed are:

*RSA_AES_128_CBC_SHA256	Use the RSA encoding algorithms for the Advanced Encryption Standard (AES) cipher with cipher block changing (CBC) and 128 bit keys. Use Secure Hash Algorithm 256 (SHA256) for generating message authentication codes (MAC).
*RSA_AES_128_CBC_SHA	Use the RSA encoding algorithms for the Advanced Encryption Standard (AES) cipher with cipher block changing (CBC) and 128 bit keys. Use Secure Hash Algorithm (SHA) for generating message authentication codes (MAC). Note: If negotiated for TLSv1.2, SHA256 will be used instead of SHA-1.
*RSA_RC4_128_SHA	Use the RSA encoding algorithms for the Rivest Cipher 4 (RC4) cipher and 128 bit keys. Use Secure Hash Algorithm (SHA) for generating message authentication codes (MAC). Note: If negotiated for TLSv1.2, SHA256 will be used instead of SHA-1.
*RSA_RC4_128_MD5	Use the RSA encoding algorithms for the Rivest Cipher 4 (RC4) cipher and 128 bit keys. Use message digest algorithm 5 (MD5) for generating message authentication codes (MAC).
*RSA_AES_256_CBC_SHA256	Use the RSA encoding algorithms for the Advanced Encryption Standard (AES) cipher with cipher block changing (CBC) and 256 bit keys. Use Secure Hash Algorithm 256 (SHA256) for generating message authentication codes (MAC).
*RSA_AES_256_CBC_SHA	Use the RSA encoding algorithms for the Advanced Encryption Standard (AES) cipher with cipher block changing (CBC) and 256 bit keys. Use Secure Hash Algorithm (SHA) for generating message authentication codes (MAC). Note: If negotiated for TLSv1.2, SHA256 will be used instead of SHA-1.
*RSA_3DES_EDE_CBC_SHA	Use the RSA encoding algorithms for the Triple Data Encryption Standard (3DES) cipher with the encrypt/decrypt/encrypt (EDE) and cipher block changing (CBC) modes and 168 bit keys. Use Secure Hash Algorithm (SHA) for generating message authentication codes (MAC). Note: If negotiated for TLSv1.2, SHA256 will be used instead of SHA-1.
*RSA_DES_CBC_SHA	Use the RSA encoding algorithms for the Data Encryption Standard (DES) cipher with the cipher block changing (CBC) mode and 56 bit keys. Use Secure Hash Algorithm (SHA) for generating message authentication codes (MAC).
*RSA_EXPORT_RC2_CBC_40_MD5	Use the RSA encoding algorithms for the Rivest Cipher 2 (RC2) cipher with the cipher block changing (CBC) mode and 40 bit keys. Use message digest algorithm 5 (MD5) for generating message authentication codes (MAC).
*RSA_EXPORT_RC4_40_MD5	Use the RSA encoding algorithms for the Rivest Cipher 4 (RC4) cipher and 40 bit keys. Use message digest algorithm 5 (MD5) for generating message authentication codes (MAC).
*RSA_NULL_SHA256	Use the RSA encoding algorithms but do not use any cipher. Use Secure Hash Algorithm 256 (SHA256) for generating message authentication codes (MAC).
*RSA_NULL_SHA	Use the RSA encoding algorithms but do not use any cipher. Use Secure Hash Algorithm (SHA) for generating message authentication codes (MAC). Note: If negotiated for TLSv1.2, SHA256 will be used instead of SHA-1.
*RSA_NULL_MD5	Use the RSA encoding algorithms but do not use any cipher. Use message digest algorithm 5 (MD5) for generating message authentication codes (MAC).
*RSA_RC2_CBC_128_MD5	Use the RSA encoding algorithms for the Rivest Cipher 2 (RC2) cipher with the cipher block changing (CBC) mode and 128 bit keys. Use message digest algorithm 5 (MD5) for generating message authentication codes (MAC).
*RSA_3DES_EDE_CBC_MD5	Use the RSA encoding algorithms for the Triple Data Encryption Standard (3DES) cipher with the encrypt/decrypt/encrypt (EDE) and cipher block changing (CBC) modes and 168 bit keys. Use message digest algorithm 5 (MD5) for generating message authentication codes (MAC).
*RSA_DES_CBC_MD5	Use the RSA encoding algorithms for the Data Encryption Standard (DES) cipher with the cipher block changing (CBC) mode and 56 bit keys. Use message digest algorithm 5 (MD5) for generating message authentication codes (MAC).

Secure sockets layer (SSL) cipher specification list control. QSSLCSLCTL specifies whether or not the QSSLCSL (SSL cipher specification list) system value is controlled by the system or by the user. The values allowed are:

Secure sockets layer (SSL) protocols. QSSLPCL specifies the SSL protocol versions supported by System SSL. The values allowed are:

*OPSYS	The SSL protocols supported are determined by the system.
*TLSV1.2	Transport Layer Security version 1.2 will be supported.
*TLSV1.1	Transport Layer Security version 1.1 will be supported.
*TLSV1	Transport Layer Security version 1.0 will be supported.
*SSLV3	Secure Sockets Layer version 3.0 will be supported.
*SSLV2	Secure Sockets Layer version 2.0 will be supported.

Security level. QSECURITY is the system security level indicator. The possible values are:

Note: If this system value has been changed since the last IPL, this value is not the security level the system is currently using. This value will be in effect after the next IPL.

Serial number. QSRLNBR is the system serial number. An example of a serial number is 1001003.

Server authentication interval. QSVRAUTITV is the system value for the server authentication interval. The server authentication interval specifies the time interval of the server authentication in minutes. The following values are allowed:

Service dump. QSRVDMP specifies whether service dumps for unmonitored escape messages are created. The values that are allowed are:

Set job attributes from locale. The QSETJOBATR system value specifies the job attributes that are to be set from the job's locale. The possible values for QSETJOBATR are as follows:

Shared memory control. QSHRMEMCTL specifies whether or not users are allowed to use shared memory or mapped memory that has write capability. The allowed values are:

Sign-on information. QDSPSGNINF is the system value for displaying sign-on information. The possible values are:

Software error log. QSFWERRLOG specifies whether system-detected software problems are entered in the error log. The allowed values are:

Sort sequence table. QSRTSEQ is the name of the table used for the sort sequence. The first 10 characters contain the name of the table, and the last 10 characters contain the library name. The values for QSRTSEQ are:

Special environment. QSPCENV specifies the system environment used as the default for all users. The possible values are:

Spooled file action. QSPLFACN specifies whether spooled files can be accessed through job interfaces once a job has completed its normal activity.

Start printer writer. QSTRPRTWTR specifies whether printer writers are started at IPL. QSTRPRTWTR can be:

Startup program name. QSTRUPPGM is the startup program. This value specifies the name of the program called from an autostart job when the controlling subsystem is started. The first 10 characters contain the program name, and the last 10 characters contain the library name. *NONE means the autostart job ends normally without calling a program.

Status messages. QSTSMSG specifies whether or not the status messages are displayed. The values allowed are:

System date. QDATE is the system date. QDATE is composed of the following system values: QCENTURY, QYEAR, QMONTH, and QDAY. The format of the field returned is CYYMMDD where C is the century, YY is the year, MM is the month, and DD is the day. A 0 for the century flag indicates years 19xx, and a 1 indicates years 20xx.

System date and time. QDATETIME is the date and time for the local system time as a single value. Retrieving this value is similar to retrieving QDATE and QTIME in a single operation. The format of the field returned is YYYYMMDDHHNNSSXXXXXX where YYYY is the year, MM is the month, DD is the day, HH is the hours, NN is the minutes, SS is the seconds, and XXXXXX is the microseconds.

System library list. QSYSLIBL is the system part of the library list. The list can contain as many as 15 names.

System model. QMODEL is the system model number. It is the number or letters used to identify the model of the system.

System time. QTIME is the system value for the time of day. QTIME is composed of the following system values: QHOUR, QMINUTE, and QSECOND. QTIME has the format HHMMSSXXX, where HH equals hours, MM equals minutes, SS equals seconds, and XXX equals milliseconds.

Thread resources adjustment. QTHDRSCADJ specifies whether or not the system should make adjustments to the affinity of threads currently running in the system. If some system resources are being utilized more than others, the system may reassign some of the threads running on the more heavily used resources to have affinity to the less used resources. The values allowed are:

Thread resources affinity. QTHDRSCAFN specifies whether or not secondary threads are grouped together with the initial thread. If they are grouped together, they will have affinity to, or a preference for, the same set of processors and memory, which may affect performance. The first 10 characters contain a special value indicating how the threads will be grouped. The values allowed are:

The last 10 characters contain a special value that indicates to what degree the system tries to maintain the affinity of threads to the system resources that they are internally assigned to. The values allowed are:

Time adjustment. QTIMADJ can be used to identify software that adjusts the system clock to keep it synchronized with an external time source. This value should be maintained by time adjustment software and is intended as an aid to prevent having multiple time adjustment applications conflict with each other. There are no checks perfomed by the system to verify this value or that software is or is not performing time adjustments. IBM time adjustment offerings will use identifiers that start with QIBM such as 'QIBM_OS400_SNTP'. Other software suppliers should follow a similiar naming convention of company name and product name.

Time adjustment software should check QTIMADJ prior to starting. If QTIMADJ has an identifier for other time adjustment software, then the software being started should notify the user of this potential conflict and confirm that this time adjustment software should be started. When QTIMADJ is *NONE the software should update QTIMADJ to identify that it is now responsible for adjusting the system clock. Time adjustment software should check QTIMADJ again prior to ending. QTIMADJ should be set to *NONE only if the current value identifies this time adjustment software that is ending. The shipped value is *NONE. The allowed values are:

Time separator. QTIMSEP is the character separator for time. QTIMSEP must be one of the following values: colon (:), period (.), comma (,), or blank.

Time-slice end pool. QTSEPOOL is the time-slice end pool. This value specifies whether interactive jobs should be moved to another main storage pool when they reach time-slice end. The values allowed are:

Time zone. QTIMZON specifies the name of the time zone description used to calculate local system time.

Total jobs. QTOTJOB specifies the initial number of jobs for which auxiliary storage is allocated when the job tables are rebuilt during the IPL.

UPS delay time. The uninterruptible-power-supply (UPS) delay time specifies the amount of time that elapses before the system automatically powers down following a power failure. When a change in power activates the UPS, messages are sent to the UPS message queue (the system value QUPSMSGQ). This system value is meaningful only if your system has a battery power unit or has an uninterruptible power supply attached.

A change to this system value takes effect the next time there is a power failure. The shipped value is 200 seconds. The allowed values are:

The QUPSDLYTIM system value is in the form of a two-item list. The first item is the value the user specified on the CHGSYSVAL command. The second item is the delay time, which is either what the user specified, or, if *CALC or *BASIC is specified, the delay time assigned by the Licensed Internal Code.

UPS message queue. The QUPSMSGQ system value is the message queue that is to receive uninterruptible-power-supply messages. QUPSMSGQ is a 20-character list of up to two values in which the first 10 characters contain the message queue name, and the last 10 characters contain the library name.

Use adopted authority. QUSEADPAUT specifies an authorization list that is used to control who can create, change, and update programs and service programs with the use adopted authority (USEADPAUT) attribute of *YES. The possible values are:

User library list. QUSRLIBL is the default for the user part of the library list. The list can contain as many as 25 names.

Verify object on restore. QVFYOBJRST is the system value for verify object on restore. This value is used to specify the policy to be used for object signature verification during a restore operation. This value applies to objects of types: *CMD, *PGM, *SRVPGM, *SQLPKG and *MODULE. It also applies to *STMF objects which contain Java™ programs. The possible values are:

Year. QYEAR is the system value that specifies the last 2 digits for the year. Its value can range from 0 through 99.

Error Messages

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