ISFSYSTB Back to Index page
 
Prolog 
Control Block Contents 
   ISFSYSTB DSECT
   ISFNAMTB DSECT
   ISFVOLTB DSECT
   ISFDEVTB DSECT
   ISFXLSTB DSECT
   ISFEXTAB 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.


  ISFSYSTB Prolog Top of page
 
 NAME       : CSEBLOKS
 DESCRIPTION: Definition tables for Cross System
              Extensions
 DSECT      : ISFSYSTB (primary)
 RELOCATION CONSIDERATIONS : None
 NOTES      : - Tables are built during system initialization and
              system configuration file processing.
              - Only ISFSYSTB is included in the PL/X version of
              this control block.  Fields in ISFSYSTB are initialized
              using the Assembler version of the table, therefore
              initial values are not included in the PL/X version.
 HISTORY    : The PLX portion of this block was created
              for PITS 2T0H788.
 
 
  ISFSYSTB Control Block Content Top of page
 

 ISFSYSTB DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ISFSYSTB Definition tables for Cross System 0000 0 Address 4 ISFSDTAB Devtype table 0004 4 Address 4 ISFSSYS# # of sys for XLINK 0008 8 Address 4 ISFXLKVI Ptr to XLINK volume inc list 000C 12 Address 4 ISFXLKVX Ptr to XLINK volume exc list 0010 16 Address 4 ISFXLNKI Ptr to XLINK system inc list 0014 20 Address 4 ISFXLNKX Ptr to XLINK system exc list 0018 24 Address 4 * Reserved for future IBM Use 001C 28 Address 4 * Reserved for future IBM Use 0020 32 Address 4 * Reserved for future IBM Use 0024 36 Address 4 * Reserved for future IBM Use 0028 40 Address 4 * Reserved for future IBM Use 002C 44 Address 4 * Reserved for future IBM Use 0030 48 Address 4 * Reserved for future IBM Use 0034 52 Address 4 * Reserved for future IBM Use 0038 56 Character 8 ISFSDATE Assembly date 0040 64 Character 8 ISFSTIME Assembly time 0048 72 Signed 4 ISFSSYSP This system's position in LINK INCLUDE list. 004C 76 Bitstring 1 ISFSSTAT I*1 Status flag byte 1... .... ISFSCVM X'80' ISFSCVM CS communications active .1.. .... ISFSXLNK X'40' ISFSXLNK XLINK active ..1. .... ISFSXVI X'20' ISFSXVI An XLINK_VOLUME_INCLUDE statement was issued. Used to determine whether or not all volumes should be included by default. 004D 77 Bitstring 3 * Reserved for future IBM Use 0050 80 Address 4 ISFSYSMN A(This system's SHPBK) 0054 84 Address 4 ISFSYSFN A(First SHPBK) 0058 88 Signed 4 ISFSYSNN Count of SHPBKs 005C 92 Signed 4 * Reserved for future IBM Use 0060 96 Dbl-Word 8 * Reserved for future IBM Use 0068 104 Address 4 ISFSYSIX A(XSPOOL input exclusion list) 006C 108 Address 4 ISFSYSOX A(XSPOOL output exclusion list) 00000070 ISFSYSTL *-ISFSYSTB Length of table
 ISFNAMTB DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ISFNAMTB Definition tables for Cross System CSL layout of systemname table. DSECT is mapped on: ISFNTABI - table in HCPXSY 0000 0 Character 8 ISFNAME system name 00000008 ISFNLEN *-ISFNAMTB length of one entry 00000038 ISFINMAX 56 A (somewhat) arbitrary limit of the number of system names that we will allow for the XLINK_SYSTEM_INCLUDE list of systems. This limit is also imposed on the system names specified in the CSESYS macro in HCPSYS by the local assembler arithmetic variable &MAXSYS, which is defined in macro CSESYSLN.
 ISFVOLTB DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ISFVOLTB Definition tables for Cross System CS link layout of volume table. DSECT is mapped on: ISFVTABI - internal table in this module ISFVTAB - the external table specified by the user 0000 0 Character 6 ISFVSER volume serial number 0006 6 Address 2 ISFVCYL ISFCYL this volid 0008 8 Address 2 ISFVTRK ISFTRK this volid 000A 10 Address 2 ISFVRECL ISFRECL this volid 000C 12 Address 2 ISFVRECS ISFRECS this volid 0010 16 Dbl-Word 8 * (0) 00000010 ISFVLEN *-ISFVOLTB length of one entry
 ISFDEVTB DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ISFDEVTB Definition tables for Cross System CSL layout of device dependent table. DSECT mapped on: ISFDTABI - table in HCPXSY 0000 0 Bitstring 1 ISFDTYPE I*1 DEVTYPE 0001 1 Bitstring 1 ISFDCLAS Device class for 3380 0002 2 Signed 2 ISFDCYL ISFCYL 0004 4 Signed 2 ISFDTRK ISFTRACK 0006 6 Signed 2 ISFDRECL ISFRECL 0008 8 Signed 2 ISFDRECS ISFRECORDS 000A 10 Bitstring 1 ISFDOCL Original CLASS= value 000B 11 Bitstring 1 ISFDFLG Flag byte. This field is valid only during processing of the system config XLINK_DEVICE_DEFAULTS statements. A value of zero means that this entry has not been replaced by a config file statement. 000C 12 Address 4 ISFDFWD A(next ISFDEVTB). This field is valid only during processing of the system config XLINK_DEVICE_DEFAULTS statements. 0010 16 Dbl-Word 8 * (0) 00000010 ISFDLEN *-ISFDEVTB length of an entry
 ISFXLSTB DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ISFXLSTB Definition tables for Cross System CSE layout of exclusion list table. 0000 0 Address 4 ISFXLFWD Forward pointer 0004 4 Address 4 * Reserved 0008 8 Character 8 ISFXL1ST (0) First possible item 0FF8 4088 Bitstring 8 ISFXLEND Set to X'FF' to mark end of list 00000200 ISFXLLEN (*-ISFXLSTB)/8 Length (in dwords) of area
 ISFEXTAB DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure ISFEXTAB Definition tables for Cross System Extended CSE list format used for: - XLINK system inclusion and exclusion lists - XLINK volume inclusion and exclusion lists 0000 0 Address 4 ISFEXNXT Pointer to next chunk 0004 4 Address 4 ISFEXCNT Count of items in this chunk 0008 8 Address 4 ISFEXELN Length of individual entry 000C 12 Address 4 * Reserved for future IBM use 0010 16 Dbl-Word 8 ISFEXSTA (0) Start of entries 00000010 ISFEXLEN *-ISFEXTAB Length of header
 
 
  ISFSYSTB Storage Layout Top of page
 
          
*** ISFSYSTB - Definition tables for Cross System
*
*     +---------------------------+---------------------------+
*   0 |         ISFSDTAB          |         ISFSSYS#          |
*     +---------------------------+---------------------------+
*   8 |         ISFXLKVI          |         ISFXLKVX          |
*     +---------------------------+---------------------------+
*  10 |         ISFXLNKI          |         ISFXLNKX          |
*     +---------------------------+---------------------------+
*  18 |///////////////////////////|///////////////////////////|
*     +---------------------------+---------------------------+
*  20 |///////////////////////////|///////////////////////////|
*     +---------------------------+---------------------------+
*  28 |///////////////////////////|///////////////////////////|
*     +---------------------------+---------------------------+
*  30 |///////////////////////////|///////////////////////////|
*     +---------------------------+---------------------------+
*  38 |                       ISFSDATE                        |
*     +-------------------------------------------------------+
*  40 |                       ISFSTIME                        |
*     +---------------------------+------+--------------------+
*  48 |         ISFSSYSP          |:SSTAT|////////////////////|
*     +---------------------------+------+--------------------+
*  50 |         ISFSYSMN          |         ISFSYSFN          |
*     +---------------------------+---------------------------+
*  58 |         ISFSYSNN          |///////////////////////////|
*     +---------------------------+---------------------------+
*  60 |///////////////////////////////////////////////////////|
*     +---------------------------+---------------------------+
*  68 |         ISFSYSIX          |         ISFSYSOX          |
*     +---------------------------+---------------------------+
*  70
*
*** ISFSYSTB - Definition tables for Cross System
          
*** ISFNAMTB - Definition tables for Cross System
*
*     +-------------------------------------------------------+
*   0 |                       ISFNAME                         |
*     +-------------------------------------------------------+
*   8
*
*** ISFNAMTB - Definition tables for Cross System
          
*** ISFVOLTB - Definition tables for Cross System
*
*     +-----------------------------------------+-------------+
*   0 |                ISFVSER                  |  ISFVCYL    |
*     +-------------+-------------+-------------+-------------+
*   8 |  ISFVTRK    |  ISFVRECL   |  ISFVRECS   |/////////////|
*     +-------------+-------------+-------------+-------------+
*  10
*
*** ISFVOLTB - Definition tables for Cross System
          
*** ISFDEVTB - Definition tables for Cross System
*
*     +------+------+-------------+-------------+-------------+
*   0 |:DTYPE|:DCLAS|  ISFDCYL    |  ISFDTRK    |  ISFDRECL   |
*     +------+------+------+------+-------------+-------------+
*   8 |  ISFDRECS   |:DOCL |:DFLG |         ISFDFWD           |
*     +-------------+------+------+---------------------------+
*  10
*
*** ISFDEVTB - Definition tables for Cross System
          
*** ISFXLSTB - Definition tables for Cross System
*
*     +---------------------------+---------------------------+
*   0 |         ISFXLFWD          |///////////////////////////|
*     +---------------------------+---------------------------+
*   8 |                                                       |
*     =                       ISFXL1ST                        =
*     |                                                       |
*     +-------------------------------------------------------+
* FF8 |                       ISFXLEND                        |
*     +-------------------------------------------------------+
*1000
*
*** ISFXLSTB - Definition tables for Cross System
          
*** ISFEXTAB - Definition tables for Cross System
*
*     +---------------------------+---------------------------+
*   0 |         ISFEXNXT          |         ISFEXCNT          |
*     +---------------------------+---------------------------+
*   8 |         ISFEXELN          |///////////////////////////|
*     +---------------------------+---------------------------+
*
*** ISFEXTAB - Definition tables for Cross System
 
 
  ISFSYSTB Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
ISFDCLAS       0001
ISFDCYL        0002
ISFDFLG        000B
ISFDFWD        000C
ISFDLEN        0010 00000010
ISFDOCL        000A
ISFDRECL       0006
ISFDRECS       0008
ISFDTRK        0004
ISFDTYPE       0000
ISFEXCNT       0004
ISFEXELN       0008
ISFEXLEN       0010 00000010
ISFEXNXT       0000
ISFEXSTA       0010
ISFINMAX       0000 00000038
ISFNAME        0000
ISFNLEN        0000 00000008
ISFSCVM        004C 80
ISFSDATE       0038
ISFSDTAB       0000
ISFSSTAT       004C
ISFSSYS#       0004
ISFSSYSP       0048
ISFSTIME       0040
ISFSXLNK       004C 40
ISFSXVI        004C 20
ISFSYSFN       0054
ISFSYSIX       0068
ISFSYSMN       0050
ISFSYSNN       0058
ISFSYSOX       006C
ISFSYSTL       006C 00000070
ISFVCYL        0006
ISFVLEN        0010 00000010
ISFVRECL       000A
ISFVRECS       000C
ISFVSER        0000
ISFVTRK        0008
ISFXLEND       0FF8
ISFXLFWD       0000
ISFXLKVI       0008
ISFXLKVX       000C
ISFXLLEN       0FF8 00000200
ISFXLNKI       0010
ISFXLNKX       0014
ISFXL1ST       0008
 
This information is based on z/VM 6.3.0 Last updated on 22 May 2013 at 13:53:39 EDT.
Copyright IBM Corporation, 1990, 2013