NSDBK Back to Index page
 
Prolog 
Control Block Contents 
   NSDBK DSECT
Storage Layout 
Cross Reference (Contains links to field and bit definitions)
Programming Interface Information:
This information is NOT intended to be
used as Programming Interfaces of z/VM.


  NSDBK Prolog Top of page
 
 NAME       : HCPNSDBK
 DESCRIPTION: DEFSEG/DEFSYS parameter control block
 DSECT      : NSDBK
 FUNCTION   : The HCPNSDBK is a parameter area used for
              DEFSEG/DEFSYS.
 LOCATED BY : None
 CREATED BY : HCPNSD
 DELETED BY : HCPNSD
 RELOCATION CONSIDERATIONS : None
 
 
  NSDBK Control Block Content Top of page
 

 NSDBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure NSDBK DEFSEG/DEFSYS parameter control block 0000 0 Bitstring 1 NSDOPTFG Operand/option flag ...1 .... NSDMINSZ X'10' NSDMINSZ If on, indicates MINSIZE operand was specified. ..1. .... NSDPREGS X'20' NSDPREGS If on, indicates PARMREGS operand was already specified .1.. .... NSDSAMER X'40' NSDSAMER If on, indicates that SAMErange operand was already specified 1... .... NSDSSP X'80' NSDSSP If on, indicates that the SPACE operand was already specified 0001 1 Bitstring 1 NSDERRFG Error flag 1... .... NSDMSSCL X'80' NSDMSSCL Indicate that the MSS (R8) SDFBK is to be closed .1.. .... NSDMSSPU X'40' NSDMSSPU Indicate that the MSS (R9) SDFBK is to be purged ..1. .... NSDSSPCL X'20' NSDSSPCL Indicate that the SSP (R8) SDFBK is to be closed ...1 .... NSDSSPPU X'10' NSDSSPPU Indicate that the SSP (R8) SDFBK is to be purged .... 1... NSDNOMSG X'08' NSDNOMSG Indicates to exit without sending a message 0002 2 Bitstring 1 NSDSTAFG Status flag 1... .... NSDMSSOR X'80' NSDMSSOR Indicates that the member was found opened for reads .1.. .... NSDNEWSP X'40' NSDNEWSP Indicates a new SSP created. No need to return frame from the call to HCPNSCFA. ..1. .... NSDSSPOR X'20' NSDSSPOR Indicates that the segment space was found opened for read 0003 3 Bitstring 1 NSDLCKFG *NSS SDF queue lock status 1... .... NSDSDFEX X'80' NSDSDFEX Indicates that the *NSS SDF queue lock is held exclusively ..1. .... NSDSDFNO X'20' NSDSDFNO Indicates that the *NSS SDF queue lock is not held 00000001 NSDBKDSZ (*-NSDBK+7)/8 NSDBK block size in DW's 00000004 NSDBKBSZ (*-NSDBK) NSDBK block size in bytes
 
 
  NSDBK Storage Layout Top of page
 
          
*** NSDBK - DEFSEG/DEFSYS parameter control block
*
*     +------+------+------+------+
*   0 |:OPTFG|:ERRFG|:STAFG|:LCKFG| 4
*     +------+------+------+------+
*
*** NSDBK - DEFSEG/DEFSYS parameter control block
 
 
  NSDBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
NSDBKBSZ       0003 00000004
NSDBKDSZ       0003 00000001
NSDERRFG       0001
NSDLCKFG       0003
NSDMINSZ       0000 10
NSDMSSCL       0001 80
NSDMSSOR       0002 80
NSDMSSPU       0001 40
NSDNEWSP       0002 40
NSDNOMSG       0001 08
NSDOPTFG       0000
NSDPREGS       0000 20
NSDSAMER       0000 40
NSDSDFEX       0003 80
NSDSDFNO       0003 20
NSDSSP         0000 80
NSDSSPCL       0001 20
NSDSSPOR       0002 20
NSDSSPPU       0001 10
NSDSTAFG       0002
 
This information is based on z/VM 7.3.0 Last updated on 22 Jun 2022 at 15:53:09 EDT.
Copyright IBM Corporation, 1990, 2022