Summary of changes to SYS1.PARMLIB

Table 1 lists the new and changed members of SYS1.PARMLIB.

Table 1. Summary of new and changed SYS1.PARMLIB members
Member Element or feature Release Description Reason for change
ALLOCxx BCP z/OS® V2R1 New parameter: BATCH_RCLMIGDS specifies how migrated date sets will be recalled. Release update
ALLOCxx z/OS UNIX z/OS V1R13 Changed parameters:
  • The CATLG_ERR parameter has changed.
  • The VERIFY_UNCAT parameter has a new option LOGTRACK.
 Release update
ANTMIN00 z/OS DFSMS z/OS V1R13 New parameters: CCATTNTHROTTLE and CCREADAHEAD set tuning values for Concurrent Copy. System Data Mover RAS
ANTXIN00 z/OS DFSMS z/OS V2R1 New parameter:

WORKLOADWRITEPACING specifies the maximum write pacing levels.

 Multiple Incremental FlashCopy target support
z/OS V1R13 New parameter:

SUPPRESSTIMESTAMP controls channel program timestamping on XRC system data mover systems.

Changed parameter:

MAXTOTALREADERTASKS now defaults to 40 when ALLOWENHANCEDREADERS(NO) is specified. Previously, the default was 80.

 System Data Mover RAS
AUTOR00 BCP z/OS V2R1 New parameter:

RATELIMIT sets the rate limit value to indicate the number of replies for a specific message ID that can be issued per second.

 Release update
Start of changeALLOCxxEnd of change Start of changeBCPEnd of change Start of changez/OS V2R1End of change Start of changeTwo new SYSTEM keywords are added:
  • BATCH_RCLMIGDS(SERIAL|PARALLEL)
  • OPTCDB_SPLIT(EXPLICIT|CATALOG)
End of change		 Start of changeRelease updateEnd of change
BPXPRMxx z/OS UNIX z/OS V1R13 New statements:
  • MAXUSERMOUNTSYS specifies the maximum number of nonprivileged user mounts in the system.
  • MAXUSERMOUNTUSER specifies the maximum number of nonprivileged user mounts allowed for each nonpriviliged user.
  • NONEMPTYMOUNTPT controls the mounting of file systems on non-empty mount point directories.
 Mount granularity
z/OS V2R1 Changed statement: AUTOCVT activates and deactivates automatic conversion of I/O data using coded character sets. Release update
Start of changez/OS V2R1End of change Start of changeNew parameter: The FSFULL parameter is supported by TFS, in addition to HFS and TFS.End of change Start of changeUnicode exploitationEnd of change
z/OS V2R1 New statement: MAXIOBUFUSER specifies the user of persistent kernel storage for I/O buffers by each process when used in a Unicode conversion environment. Unicode exploitation
z/OS V2R1 Start of changeNew statement: MAXPIPEUSER specifies the maximum number of named or unnamed pipes that a user can open and use concurrently.End of change Pipes enhancement
z/OS V2R1 New statement: The PWT parameter indicates whether processes that are waiting for terminal input should be timed out. Automatically logging off inactive terminals
z/OS V2R1 New options for the PARM parameter.  Two parameter key options were added as part of the TFS configuration options:
  • -ea count allows the TFS file system to automatically grow count times
  • -em count allows the TFS file system to manually grow count times
The parameter key options are documented in the TFS section of z/OS UNIX System Services Planning. 		Early warning of full file systems
Start of changez/OS V2R1End of change Start of changeUpdated information: The LOSTMSG parameter was updated with additional information.End of change Start of changeClarificationsEnd of change
z/OS V2R1 A restriction has been added that zFS does not support DDNAME. Use the FILESYSTEM keyword instead. Clarification
z/OS V2R1 Updated to clarify that the value of the SHRLIBRGNSIZE parameter must be evenly divisible by 1048576. Clarification
CBROAMxx OAM z/OS V2R1
  • New statement:

    SETTLIB statement overrides the default behavior for some of the main cartridge entry messages in a system managed tape library environment.

 File system support
CBROAMxx OAM z/OS V1R13
  • New statement:

    SETDISK statement configures the file system sublevel of the disk level in the OAM storage hierarchy.

  • New parameter:

    ABFSERROR on SETOAM statement specifies action when an error occurs while OAM is retrieving an object from the file system.

  • New parameter:

    RECALLDISKSUBLEVEL on SETOSMC statement specifies objects will be recalled to disk sublevel 1 (DB2®) or sublevel 2 (file system).

 File system support
CEAPRMxx BCP z/OS V2R1 New parameter:

HLQLONG(CEA) specifies the high-level qualifier for all log snapshot data sets.

 Release update
Start of changeCEEPRM00End of change Start of changeBCPEnd of change Start of changez/OS V2R1End of change Start of changeThe IBM-supplield member has changed. End of change Start of changeRelease updateEnd of change
Start of changeCLOCKxxEnd of change Start of changeBCPEnd of change Start of changez/OS V2R1End of change Start of changeChanged member:

ACCURACY is added to specify an acceptable time deviation.

End of change		 Start of changeRelease updateEnd of change
Start of changeBCPEnd of change Start of changez/OS V2R1End of change Start of changeClarification was added to the description of the TIMEZONE parameter about applications that are required to run with local time equal to UTC. End of change Start of changeClarificationEnd of change
Start of changeCNGRPxxEnd of change Start of changeBCPEnd of change Start of changez/OS V2R1End of change Start of changeNew support:

Hardware management multiple console support (HMCS) can now be members of a console.

End of change		 Start of changeRelease updateEnd of change
Start of changeCOFVLFxxEnd of change Start of changeBCPEnd of change Start of changez/OS V2R1End of change Start of changeNew member:

ALERTAGE specifies the age, in seconds, for objects in the specified class. The description of COFVLFxx includes changes to the action that VLF performs from writing a SYS1.LOGREC record to passing a return code.

End of change		 Start of changeRelease updateEnd of change
COMMNDxx BCP z/OS V2R1 Changed member:

Lines that begin with an asterisk in column 1 are comments.

 Release update; also APAR OA38328.
Start of changeCONFIGxxEnd of change Start of changeBCPEnd of change Start of changez/OS V2R1End of change Start of changeChanged member:

PFID specifies the configuration of the PCIE function identifiers (PFIDs). CONFIGxx has new parameters (STANDARD, ZAAP, ZIIP, and ANY) for the CPU/CPUAD statement.

End of change		 Start of changeRelease updateEnd of change
Start of changeBCPEnd of change Start of changez/OS V2R1End of change Start of changeAn explanation was added to the CONFIGxx parmlib section that the depreciated ESTOR parameter is tolerated.End of change Start of changeClarificationEnd of change
Start of changeCONSOLxxEnd of change Start of changeBCPEnd of change Start of changez/OS V2R1End of change Start of changeChanged member:

DEVNUM added HMCS to support the consoles. CONSOLxx has new parameters, SUPSBY for V2R1 and MSGFLD for V1R13.

End of change		 Start of changeRelease updateEnd of change
CSVLLAxx BCP z/OS V1R13 Changed member:

CSVLLA00 specifies which libraries (in addition to the LNKLST concatenation) library lookaside (LLA) is to manage. A change occurs for V1R13 in the way the member behaves if you don't specify the member on the LLA=xx parameter of the LLA procedure or specify LLA=NONE. In those cases, LLA will, by default, manage only the libraries that are accessed through the LNKLST concatenation.

 Release update
CTICBR00 OAM z/OS V1R13 New member:

CTICBR00 defines OAM default trace options.

 Release update
Start of changeCUNUNIxxEnd of change Start of changeUnicodeEnd of change Start of changez/OS V2R1End of change Start of changeChanged member:

ADD BLDLOCALE adds locales to the Unicode environment.

REPLACE BLDLOCALE replaces locales in the Unicode environment.

DELETE BLDLOCALE deletes locales from the Unicode environment.

For CUNUNIxx, the REPLACE FROM and REPLACE CASE statements now allow VOLSER.

REPLACE CASE now allows a value of UNI600.

ADD CASE and DELETE CASE now add a value of ACA600.

End of change		 Start of changeRelease updateEnd of change
Start of changeDEVSUPxxEnd of change Start of changeBCPEnd of change Start of changez/OS V2R1End of change Start of changeNew parameter:

JES3_ALLOC_ASSIST specifies that the allocation assist support is enabled for use with JES3.

DEVSUPxx has new statements for MEDIA11, MEDIA12, and MEDIA13.

End of change		 Start of changeRelease updateEnd of change
Start of changez/OS V2R1End of change Start of changeA restriction was added to the TAPEPBLKSZLIM= statement to indicate that DFSMSdss only supports BLKSZLIM of 65,520 and higher.End of change Start of changeOmitted from release it was updated in.End of change
z/OS V2R1 New parameter:

ENABLE | DISABLE (PPRCMT) enables or disables the multi-target PPRC support.

 Mutli-Target Mirror support
z/OS V2R1 New parameter:

MULTINCRFLC enables or disables Incremental FlashCopy Version 2.

 Multiple Incremental FlashCopy target support
DEVSUPxx BCP z/OS V1R13 New parameter:

OCE_ABEND_DESCRIP controls whether descriptive text is appended to certain O/C/EOV abend messages.

 Release update
Start of changeDIAGxxEnd of change Start of changeBCPEnd of change Start of changez/OS V2R1End of change Start of changeNew parameter:

CBLOC adds subparameter IHAASVT. IEARISGNLTRACE turns on system tracing of RISGNL.

DIAGxx is updated to include additional information about HyperSwap environments.

End of change		 Start of changeRelease updateEnd of change
Start of changez/OS V2R1End of change Start of changeNew parameter:
  • CSRPOOLDIAG enables the get and free services of the CSR cellpool to return diagnostic data.
End of change		 Start of changeAPAR OA44049End of change
EDGRMMxx DFSMSrmm z/OS V2R1
New parameter:
  • The OPTION parameter MCATTR enables the use of DFSMS Management Class (MC) attributes for DFSMSrmm that are relevant for tape management.
Changed parameter:
  • OPTION parameter RETENTIONMETHOD updated with new EXPDT retention options LASTREF | NOLASTREF, to specify the number of days that the data set will be retained after the data set was last referenced, and RETAINBY, to specify whether DFSMSrmm retains multi-volume sets as individual volumes, as a set of one or more volumes, or to base expiration information on the first file in the volume set.
  
EDGRMMxx DFSMSrmm z/OS V1R13
New parameters:
  • OPTION parameter RETENTIONMETHOD sets the system-wide retention method for new tape volume sets created during OCE processing, and for tape volumes added to the DFSMSrmm CDS.
  • OPTION parameter TVEXTPURGE specifies how DFSMSrmm processes volumes to be purged by callers of EDGTVEXT or EDGDFHSM.
  • LOCDEF parameter AUTOMOVE specifies whether a library or storage location that holds tape volumes is eligible for automated movement initiated by inventory management.
Changed parameter:
  • The maximum value of OPTION parameters MAXRETPD and RETPD is increased to 93000.
  
EZAIPCSP Communications Server z/OS V2R1 Changed member:

Provides formatting support for SMC-R control blocks.

 Shared Memory Communications over Remote Direct Memory Access
Communications Server z/OS V2R1 Changed member:

Provides formatting support for the real-time application-controlled TCP/IP trace NMI.

 Real-time application-controlled TCP/IP trace NMI
Communications Server z/OS V1R13 Changed member:

Provides support for the NSPT (Name Server Polling Task) control block.

 System resolver autonomic quiescing of unresponsive name servers
GRSCNFxx GRS z/OS V2R1
New parameter:
  • MONITOR parameter turns GRS monitoring on or off.
 Release update; also APAR OA42221.
GTFPARM BCP z/OS V2R1 Changed member:

Lines that begin with an asterisk in column 1 are comments.

 Release update; also APAR OA38328.
GTZPRMxx BCP z/OS V2R1 New member:

The Generic Tracker parmlib members contain statements: EXCLUDE, TRACKING, CLEAR, DEBUG, DIAGNOSE.

 Release update
Start of changeHZSPRMxxEnd of change Start of changeBCPEnd of change Start of changez/OS V2R1End of change Start of changeChanged member:

New statements HZSPDATA and SET,OPTION are added for z/OS V2R1.

End of change		 Start of changeHealth Checker for z/OSEnd of change
IEAABD00 BCP z/OS V2R1 Changed member:

Lines that begin with an asterisk in column 1 are comments.

 Release update; also APAR OA38328.
IEAAPP00 BCP z/OS V2R1 Changed member:

Now allows comments, indicated by an asterisk in the first column or a combination of /* and */ between columns 1 and 71. Comments are allowed at the start of the member or interspersed throughout the member.

 Release update
IEACMD00 BCP z/OS V2R1 Changed member:

Lines that begin with an asterisk in column 1 are comments.

 Release update; also APAR OA38328.
IEADMP00 BCP z/OS V2R1 Changed member:

Lines that begin with an asterisk in column 1 are comments.

 Release update; also APAR OA38328.
IEADMR00 BCP z/OS V2R1 Changed member:

Lines that begin with an asterisk in column 1 are comments.

 Release update; also APAR OA38328.
Start of changeIEAFIXxx End of change Start of changeBCP End of change Start of changez/OS V2R1End of change Start of changeNew parameters:
  • The VOLUME keyword is added to allow uncataloged data sets.
End of change		 Start of changeRelease updateEnd of change
IEAOPTxx BCP z/OS V1R13 New parameters:
  • The new parameter FULLPRESYSTEM allows you to specify full preemption for the system address spaces.
  • The new parameter STORAGE_SERVER_MANAGEMENT _SUPPORT=YES|NO specifies whether or not to pass importance and achievement information in the new IHAASSB and IRAENCB fields. The default is YES.
 Release update
BCP z/OS V2R1 The lower limit for the IEAOPTxx keyword BLWLINTHD was changed. APAR OA44526,
IEAPAKxx BCP z/OS V2R1 Changed member:

Lines that begin with an asterisk in column 1 are comments.

 Release update; also APAR OA38328.
Start of changeIEALPAxx End of change Start of changeBCP End of change Start of changez/OS V2R1End of change Start of changeNew parameters:
  • The VOLUME keyword is defined.
End of change		 Start of changeRelease updateEnd of change
Start of changeIEAOPTxx End of change Start of changeBCP End of change Start of changez/OS V1R13End of change Start of changeNew parameters:
  • The STORAGESERVERMGT parameter is added with a default of NO.
End of change		 Start of changeRelease updateEnd of change
Start of changeIEASVCxx End of change Start of changeBCP End of change Start of changez/OS V2R1End of change Start of changeNew value:
  • EPNAME specifies the entry point name of the SVC and forces an abend if a specific SVC is issued.
End of change		 Start of changeRelease updateEnd of change
IEASYSxx BCP z/OS V2R1 Changed member:

New parameters are GTZ, HZS, HZSPROC, and IQP.

Lines that begin with an asterisk in column 1 are comments.

 Release update; also APAR OA38328.
IEASYSxx BCP z/OS V1R13 New parameter:

The new parameter CATALOG identifies the IGGCATxx members to use during the current IPL.

 Release update
z/OS V2R1 New keyword:

INCLUDE1MAFC was added to the LFAREA parameter. It specifies that the 1 MB pages are to be included in the available frame count (RCEAFC), and improves paging.

 APAR OA41968
IECIOSxx BCP I/O z/OS V2R1 New parameters:
  • Start of changeIECIOSxx has a new RECOVERY option of DCCF=MESSAGE or DCCF=WAIT_STATE.End of change
  • Start of changeIECIOSxx has a new HYPERWRITE parameter to enable or disable IBM® zHyperWrite data replication.End of change
 Release update Start of change and APAR OA45662End of change
IGDSMSxx DFSMSdfp z/OS V1R13 New parameters:
  • SAM_USE_HPF allows you to specify whether or not you want BAM to use HPF when it is available.
  • SMA_RESERVE_STORAGE_POOL_DSN specifies the name of a PDSE that will contain reserve storage pools (RSPs).
  • SUPPRESS_DRMSGS specifies whether you want SMS to suppress DELETE/RENAME messages issued to the hardcopy log and job log.
 Release update
DFSMSdfp z/OS V2R1 New parameter: HONOR_DSNTYPE_PDSE can specify that a partitioned data set be created regardless of the values for other data set attributes, such as data set organization or directory blocks. Release update
DFSMSdfp z/OS V2R1 New parameter: PDSE_VERSION specifies a default version number (1 or 2) for data sets that are allocated with a DSNTYPE value of LIBRARY. PDSE version support
DFSMSdfp z/OS V2R1 New parameter: SUPPRESS_SMSMSG specifies an option to suppress certain messages. The messages that you can suppress are IGD17054I, IGD17227I and IGD17395I. Release update
Start of changeDFSMSdfpEnd of change Start of changez/OS V2R1End of change Start of changeNew parameter: MAXGENS_LIMIT specifies an upper limit for the MAXGENS parameter on the DD statement in JCL. MAXGENS specifies the number of generations for version 2 PDSEs.End of change Start of changePDSE member generation supportEnd of change
DFSMSdfp z/OS V2R1 New parameter: PS_EXT_VERSION indicates the format in which the system should create extended format data sets. The default is PS_EXT_VERSION(1) to denote the version 1 format. Release update
DFSMSdfp z/OS V2R1 New parameter options: The ZEDC_R and ZEDC_P options are added to the COMPRESS parameter, to denote "zEDC Required" or "zEDC Preferred" compression. zEDC Compression
DFSMSdfp z/OS V2R1 Description of the BreakPointValue parameter was made more complete. Clarification
IGGCATxx DFSMSdfp z/OS V2R1 New parameters:
  • AUTOADD specifies whether ECS AUTOADD is enabled.
  • ALIASLEVEL specifies the number of data set name qualifiers to be used in the multilevel alias facility catalog search.
  • DUMPON and DUMPOFF specify CAS dynamic dumping.
  • GDGFIFOENABLE specifies FIFO or LIFO ordering of GDG data sets.
  • SYS%ON and SYS%OFF specify SYS% conversion.
  • ALLOCLCK specifies contention detection settings for ALLOCLCK resource.
  • SYSIGGV2 specifies contention detection settings for SYSIGGV2 resource.
  • SYSZTIOT specifies contention detection settings for SYSZTIOT resource.
  • SYSZVVDS specifies contention detection settings for SYSZVVDS resource.
  • TAPEHLQ specifies the high level qualifier of a tape volume catalog.
  • TASKMIN specified the lower limit on the number of catalog service tasks that can run concurrently.
  • TASKTABLESIZE specifies the CAS task table size.
 Release update
IGGCATxx DFSMSdfp z/OS V1R13 New parameters:
  • CATMAX specifies the maximum number of catalogs that can be opened concurrently in CAS.
  • TASKMAX specifies the CAS user service task upper limit, which is the maximum number of non-CAS catalog service requests that can run concurrently.
 Release update
IKJTSOxx Communications Server z/OS V2R1 Changed member: FTP is added to the AUTHCMD and AUTHPGM NAMES sections of IKJTSOxx to enable the z/OS FTP client to determine whether the user has installed the optional FTP client user exits EZAFCCMD and EZAFCREP. FTP client security user exits
IOEPRMzz zFS z/OS V2R1 New parameters:
  • FORMAT_AGGRVERSION specifies the version of the aggregate that will be formatted when you use the zfsadm format command or the Format Aggregate API.
  • CHANGE_AGGRVERSION_ON_MOUNT specifies whether a version 1.4 aggregate should be changed to a version 1.5 aggregate on a primary read-write mount.
  • CONVERTTOV5 specifies whether a version 1.4 aggregate should be changed to a version 1.5 aggregate on a primary read-write mount and each v4 directory is converted to an extended (v5) directory as it is referenced.

The existing CONVERT_AUDITFID default is changed from off to on.

 Improved large directory performance
IQPPRMxx BCP z/OS V2R1 New member:

The IQPPRMxx parmlib member specifies parameters that are used for managing PCIE related devices.

 Release update
ISFPRMxx or ISFPARMS SDSF z/OS V2R1

Changed parameters:

New values for the PROPERTY statement:
  • Browse.Suppress.DupDS controls whether duplicate SYSOUT data sets are included when you browse or print a job
  • Command.FILTER.SymbolsDisabled controls the use of system symbols with filtering
  • Console.EMCS.ConModChars names the list of suffixes to use when modifying the console name when the console activation fails due to the console being in use
  • Console.EMCS.NoConMod disables modification of the console name when console activation fails due to the console being in use
  • Panel.CK.JESPlexScope, Panel.DA.JESPlexScope, Panel.ENC.JESPlexScope, Panel.PS.JESPlexScope and Panel.All.JESPlexScope control the scope of the CK, DA, ENC, and PS panels
  • Panel.DA.CPUPctBasedLPAR affects normalization of the CPU% column on the DA panel
  • Print.CCTL.AlwaysUseASA specifies how SDSF's print function handles carriage control.
 Release update
SDSF z/OS V1R13 New parameters:

New parameters of the ISGRP macro or GROUP statement define customized lists of columns on new SDSF panels: J0FLDS and J0FLD2 (J0 panel), NCFLDS and NCFLD2 (NC panel), NSFLDS and NSFLD2 (NS panel).

Changed parameters:

A new value for CONNECT, XCFSRVNM, defines the XCF server name, or requests that XCF should not be used to provide sysplex data.

New values for the PROPERTY statement:
  • Comm.Release.Mode sets the mode that SDSF uses for communication to provide sysplex-wide data on SDSF panels
  • Command.SLASH.Name specifies a character to use for system commands, instead of the slash (/)
  • Panel.PUN.DevNameAlwaysShort and Panel.RDR.DevNameAlwaysShort control how device names are formatted on the PUN and RDR panels.

Changed member:

New CKHFLDS and CKHFLD2 parameters of the ISGRP macro or GROUP statement define customized lists of columns on the CK history panel.

Release update
IXGCNFxx BCP z/OS V2R1 Changed member:

LSPRIMARY and CONSUMPTIONALERT statements are added.

 Release update
LOADxx BCP z/OS V2R1 Changed member:

DYNCPADD is updated.

 Release update
LPALSTxx BCP z/OS V2R1 Changed member:

Lines that begin with an asterisk in column 1 are comments.

 Release update; also APAR OA38328.
MSGFLDxx Consoles z/OS V1R13 New parameters:

The DEFAULTCMD statement in MSGFLDxx parmlib member has a new ASID substitution character.

Release update
PROGxx BCP z/OS V2R1 New parameters:

TRACKDIRLOAD and NOTRACKDIRLOAD are added to enable or disable system-wide tracking of directed load modules.

 Release update
SCHED BCP z/OS V2R1 New parameter:

DSI is added and specifies data set integrity.

 Release update
BCP z/OS V2R1 The IBM-supplied Program Properties Table (PPT) values are updated with BHII1TPC, Basic Hyperswap BHIHSRV address space. Release update
BCP z/OS V2R1 The PPT table was updated to include CRITICALPAGING for the BCPii address space program, HWIAMIN2. APAR OA42165
BCP z/OS V2R1 IQPINIT for PCIE services was added to the PPT table because additional support of zEDC Express update and fixes for z/OS PCIE support were included. APAR OA43256
BCP z/OS V2R1 The "No honor IEFUSI region settings" value was added to IOSVROUT in the PPT table because support was added for IOSVROUT and programs attached to it to obtain 64-bit virtual storage. APAR OA44695
Start of changeSMFPRMxxEnd of change Start of changeSystem Management Facilities (SMF)End of change Start of changez/OS V2R1End of change Start of changeNew parameters:
  • AUTHSETSMF specifies whether changes are authorized to be made to the SMF parameter options using the SETSMF command.
  • COMPRESS(PERMFIX) specifies compression of SMF records before writing to the log stream. PERMFIX specifies the default amount of storage that SMF can keep permanently fixed.
  • NOAUTHSETSMF
  • NOSMF30COUNT
  • SMF30COUNT is added to enable counter sets.
  • SWT specifies the maximum amount of time that a started task is address space is allowed to wait continuously, in hours and minutes.
  • TWT specifies the maximum amount of time that a TSO/E user address space is allowed to wait continuously, in hours and minutes.
End of change		 Start of changeRelease updateEnd of change
SMFPRMxx System Management Facilities (SMF) z/OS V1R13 Default clarification:

On the LSNAME parameter, there is no default for the TYPE option.

 Release update
VATLSTxx BCP z/OS V2R1 Changed member:

Lines that begin with an asterisk in column 1 are comments.

 Release update; also APAR OA38328.
Parent topic: Introduction