CSEHDRBK Back to Index page
 
Prolog 
Control Block Contents 
   CSEHDRBK 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.


  CSEHDRBK Prolog Top of page
 
 NAME       : CSEHDRBK
 DESCRIPTION: CSE header record on each CSE track
 DSECT      : CSEHDRBK
 RELOCATION CONSIDERATIONS : None
 
 
  CSEHDRBK Control Block Content Top of page
 

 CSEHDRBK DSECT Top of page
Hex Dec Type/Val Lng Label (dup) Comments ---- ---- --------- ---- -------------- -------- 0000 0 Structure CSEHDRBK CSE header record on each CSE track 0000 0 Character 8 ISFHHDR CSE version, rel, lvl 0008 8 Character 8 * Reserved 0010 16 Character 8 ISFHUSER Userid who did the FORMAT 0018 24 Character 8 ISFHSYSN System that did the FORMAT 0020 32 Character 8 ISFHDATE Date of FORMAT 0028 40 Character 8 ISFHTIME Time of FORMAT 0030 48 Address 2 ISFHRECL CSE recl at FORMAT time 0032 50 Address 2 ISFHRECS CSE recs at FORMAT time 0034 52 Address 4 * Reserved 0038 56 Address 1 ISFHHKEY I*1 CSE hdr key 0039 57 Address 1 ISFHKKEY I*2 CSE key key 003A 58 Address 1 ISFHRKEY I*3 Read flag key 003B 59 Address 1 ISFHNKEY I*4 Nolink flag key 003C 60 Address 1 ISFHWKEY I*5 Write flag key 003D 61 Address 1 ISFHCKEY I*6 Clear record key 003E 62 Bitstring 1 ISFHSRKY Key from SR flag record 003F 63 Bitstring 1 ISFHSWKY Key from SW flag record 0040 64 Bitstring 1 ISFHXRKY Key from ER flag record 0041 65 Bitstring 1 ISFHXWKY Key from EW flag record 0042 66 Bitstring 1 * (6) Reserved 0048 72 Bitstring 1 ISFHRFLG The read flag 0049 73 Bitstring 1 ISFHNFLG The nolink flag 004A 74 Bitstring 1 ISFHWFLG The write flag 004B 75 Bitstring 1 ISFHSRFL Stable Read flag 004C 76 Bitstring 1 ISFHSWFL Stable Write flag 004D 77 Bitstring 1 ISFHXRFL Exclusive Read flag 004E 78 Bitstring 1 ISFHXWFL Exclusive Write flag 004F 79 Bitstring 1 * Reserved 0050 80 Address 1 ISFHMKEY (32) Space for 32 map keys 0070 112 Dbl-Word 8 * (2) Reserved 0080 128 Dbl-Word 8 ISFHHSK Count fld hdr record 0088 136 Dbl-Word 8 ISFHMSK Count fld 1st map rec. 0090 144 Dbl-Word 8 ISFHKSK Count fld 1st key rec. 0098 152 Dbl-Word 8 ISFHRSK Count fld read flag 00A0 160 Dbl-Word 8 ISFHNSK Count fld nolink flag 00A8 168 Dbl-Word 8 ISFHWSK Count fld write flag 00B0 176 Dbl-Word 8 ISFHCSK Count fld clear rec. 00B8 184 Dbl-Word 8 ISFHSRSK Count fld from SR flag rec 00C0 192 Dbl-Word 8 ISFHSWSK Count fld from SW flag rec 00C8 200 Dbl-Word 8 ISFHXRSK Count fld from ER flag rec 00D0 208 Dbl-Word 8 ISFHXWSK Count fld from EW flag rec 00D8 216 Dbl-Word 8 * (3) Reserved 000000F0 ISFHDRL *-CSEHDRBK Hdr data length
 
 
  CSEHDRBK Storage Layout Top of page
 
          
*** CSEHDRBK - CSE header record on each CSE track
*
*     +-------------------------------------------------------+
*   0 |                       ISFHHDR                         |
*     +-------------------------------------------------------+
*   8 |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  10 |                       ISFHUSER                        |
*     +-------------------------------------------------------+
*  18 |                       ISFHSYSN                        |
*     +-------------------------------------------------------+
*  20 |                       ISFHDATE                        |
*     +-------------------------------------------------------+
*  28 |                       ISFHTIME                        |
*     +-------------+-------------+---------------------------+
*  30 |  ISFHRECL   |  ISFHRECS   |///////////////////////////|
*     +------+------+------+------+------+------+------+------+
*  38 |:HHKEY|:HKKEY|:HRKEY|:HNKEY|:HWKEY|:HCKEY|:HSRKY|:HSWKY|
*     +------+------+------+------+------+------+------+------+
*  40 |:HXRKY|:HXWKY|/////////////////////////////////////////|
*     +------+------+------+------+------+------+------+------+
*  48 |:HRFLG|:HNFLG|:HWFLG|:HSRFL|:HSWFL|:HXRFL|:HXWFL|//////|
*     +------+------+------+------+------+------+------+------+
*  50 |                                                       |
*     =                       ISFHMKEY                        =
*     |                                                       |
*     +-------------------------------------------------------+
*  70 |///////////////////////////////////////////////////////|
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  80 |                       ISFHHSK                         |
*     +-------------------------------------------------------+
*  88 |                       ISFHMSK                         |
*     +-------------------------------------------------------+
*  90 |                       ISFHKSK                         |
*     +-------------------------------------------------------+
*  98 |                       ISFHRSK                         |
*     +-------------------------------------------------------+
*  A0 |                       ISFHNSK                         |
*     +-------------------------------------------------------+
*  A8 |                       ISFHWSK                         |
*     +-------------------------------------------------------+
*  B0 |                       ISFHCSK                         |
*     +-------------------------------------------------------+
*  B8 |                       ISFHSRSK                        |
*     +-------------------------------------------------------+
*  C0 |                       ISFHSWSK                        |
*     +-------------------------------------------------------+
*  C8 |                       ISFHXRSK                        |
*     +-------------------------------------------------------+
*  D0 |                       ISFHXWSK                        |
*     +-------------------------------------------------------+
*  D8 |///////////////////////////////////////////////////////|
*     =///////////////////////////////////////////////////////=
*     |///////////////////////////////////////////////////////|
*     +-------------------------------------------------------+
*  F0
*
*** CSEHDRBK - CSE header record on each CSE track
 
 
  CSEHDRBK Cross Reference Top of page
 
 
Symbol         Dspl Value
-------------- ---- -----
ISFHCKEY       003D
ISFHCSK        00B0
ISFHDATE       0020
ISFHDRL        00D8 000000F0
ISFHHDR        0000
ISFHHKEY       0038
ISFHHSK        0080
ISFHKKEY       0039
ISFHKSK        0090
ISFHMKEY       0050
ISFHMSK        0088
ISFHNFLG       0049
ISFHNKEY       003B
ISFHNSK        00A0
ISFHRECL       0030
ISFHRECS       0032
ISFHRFLG       0048
ISFHRKEY       003A
ISFHRSK        0098
ISFHSRFL       004B
ISFHSRKY       003E
ISFHSRSK       00B8
ISFHSWFL       004C
ISFHSWKY       003F
ISFHSWSK       00C0
ISFHSYSN       0018
ISFHTIME       0028
ISFHUSER       0010
ISFHWFLG       004A
ISFHWKEY       003C
ISFHWSK        00A8
ISFHXRFL       004D
ISFHXRKY       0040
ISFHXRSK       00C8
ISFHXWFL       004E
ISFHXWKY       0041
ISFHXWSK       00D0
 
This information is based on z/VM 6.3.0 Last updated on 22 May 2013 at 13:53:41 EDT.
Copyright IBM Corporation, 1990, 2013